Information stored on a server's disk can be lost if the disk is damaged or if files are deleted. To prevent permanent loss of data, create backup copies of the information stored on the server's disks at regular intervals and store the copies properly.
Depending on your server, you can copy server information onto magnetic tape or diskettes, also known as backup media. The process of copying data onto media for storage is known as backing up data, and the individual copies of information stored on media are known as backups.
This chapter explains how to back up server information manually. Refer to Chapter 4 for information on how to back up a server automatically.
There are five types of manual backups:
Complete system backup - Backs up all system data (including services and databases), regardless of whether any of the data has been altered since the previous backup. Does not back up operating system executables. If you need to restore operating system executables, you must reinstall your Banyan software (refer to Chapter 11 for more information).
Incremental system backup - Backs up the changes that have occurred in the system data following the last complete backup. Does not back up operating system executables. You can select from among three settings when configuring an incremental backup range. For more information, refer to "Incremental Backups" later in this chapter.
Service backup - Backs up data for a single mail service, file service, StreetTalk Directory Assistance (STDA) service, or third-party service. This is called a single-service backup. Backing up multiple services at the same time requires you to schedule the backup in advance. Refer to Chapter 4 for more information about scheduled backups.
System configuration backup - Backs up configuration information for the server. You use this backup when you reinstall your Banyan software following a disk problem. System configuration information is also backed up during a complete system backup. You may require a separate backup of your system configuration information if you are using a third-party program to manage your backups.
Moving StreetTalk groups - Moves the information for a single StreetTalk group from a server to backup media and from backup media to a server. Allows you to move a group from one server to another. Moving a group to backup media deletes it from the server. Refer to "Moving a StreetTalk Group" later in this chapter.
Note: You can also back up the server's UNIX operating system, or kernel, to diskette. Refer to "To Save the Current Kernel Configuration to Diskette" in Appendix C for more information.
The sections that follow provide information on:
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General guidelines to keep in mind when performing any backup procedure |
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Specific procedures for performing all types of backups |
The guidelines in this section apply to all types of backups. You should be familiar with them before you begin a backup procedure. Topics covered include:
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Preparing for a backup |
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Backing up files that are in use |
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Labeling backup media |
Preparing for a Backup
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Schedule the backup for a time when the server is not heavily used. |
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Notify users of the time during which the server will be unavailable. |
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Assemble an adequate supply of tapes or diskettes and some blank labels. |
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Decide upon a safe place to store the backups. Consider storing one copy in a separate location, in case of a fire or other disaster. |
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Shut down server software so that the server is not available to users during the backup. If you are backing up a single service, you can shut down just that service. |
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If you are performing an incremental, single-service, or system configuration backup, verify that a recent complete system backup exists. If a complete backup does not exist, create one and confirm the readability of the backup. |
While a backup is in progress, you cannot use the server console until the backup completes or until the backup media currently in the drive is filled.
Note: You do not have to shut down services when you back up a server. However, if a file is open during a backup, it may not be backed up properly. For more information, refer to the next section, "Backing Up Files That Are in Use."
Backing Up Files That Are in Use
Banyan recommends shutting down services before commencing a backup. Although you can keep services running while you perform a backup, there is a risk that users may change any files that are left open during a backup. Changes made after the backup begins are not included in the backup. If you later restore files from this backup, it does not contain the most recent version of the file.
After completing a backup, always label the backup tapes and diskettes with the following information:
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The server name and revision level. |
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The date of the backup. |
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The type of backup (complete, incremental, service, or system configuration). |
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A number indicating what position the tape
or diskette occupies in the backup sequence. For example, if
the backup requires three tapes, label the last tape 3 of 3. When a backup spans more than one tape or diskette, it is important to number the tapes and diskettes in order. When restoring data from a backup, you must supply the backup media in the correct order. |
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The names of the services on the backup. |
Store the tapes or diskettes for each backup together and in the proper sequence.
Backing Up the Complete System
A complete system backup copies the current status of all server information, including all system, StreetTalk, and service databases.
To Create a Manual Backup of the Complete System
1. From the Operator Menu, select Backup/Restore. The Backup/Restore Menu appears.
2. Select Backup. The Backup Menu appears.
3. Select Complete System Backup. The Confirm Backup Screen appears.
4. Select one of the following:
- YES to confirm the readability of the backup after it completes (recommended).
- NO if you do not want to confirm the readability of the backup.
The Insert Media screen appears.
Note: Confirming the readability of the backup media confirms only that the media is not damaged or defective and can be read by the tape or diskette drive. It does not guarantee that data was correctly backed up to the media. The data on the backup media is not compared with the data on the server.
5. Insert the tape or diskette into the drive and select one of the following:
- CONTINUE to proceed.
- ABORT to cancel the system backup and return to the Backup/Restore Menu.
If you are backing up to a tape drive, a message appears, indicating that drive is retensioning the tape. Retensioning the tape can take several minutes.
Note: If a service on the server is not functioning properly, a message appears, informing you that the service is in an inconsistent state. You are prompted to choose whether you want to continue. If you continue with the backup, the files and directories in the inconsistent service are not backed up. All other services are backed up normally. If you do not continue, fix the problems with the service before you begin a new backup.
6. The drive light remains on and you receive confirmation as each service is backed up:
Continuing...
Backing up System Databases.
Backup successful.
Backing up MS@USCHI007@Servers.
Backup successful.7. When all information has been backed up, a message reports that the backup is complete. If you are using tape, the tape automatically rewinds. Skip to step 11.
If the backup does not fit on the current tape or diskette, the Insert Media Screen appears. A message informs you that the space on the tape or diskette is exhausted. If you are using tape, the tape automatically rewinds. You are then prompted to remove the media from the drive. Remove the tape or diskette and label it.
8. Insert the next tape or diskette in the drive.
9. Enter P and press ENTER to continue with the backup.
10. Repeat steps 7 through 9 for each tape or diskette needed to contain the backup.
11. If you chose not to confirm the readability of the backup in step 4, skip the remaining steps and refer to "After Completing the Backup" later in this chapter. Properly label all media (refer to "Labeling Backup Media" earlier in this chapter).
If you chose to confirm the readability of the backup in step 4, a message appears informing you that the confirmation is beginning.
- For backups that fit on a single tape or diskette, the test begins automatically. Skip to step 13.
- For backups requiring multiple tapes or diskettes, you are prompted to insert the first tape or diskette in the backup sequence. You need to test all tapes or diskettes of the series in the order in which you used them during the backup. Remove the last tape or diskette from the drive. Continue with step 12.
12. Insert the tape or diskette to be tested into the drive and press ENTER.
If you are using tape, the drive retensions the tape before the test begins.
Note: To cancel the confirmation procedure once it is in progress, press CTRL-C. The tape retensions, the test stops, and the Backup Menu appears. A message indicates that the backup has failed the test. The backup may be readable, but because you did not allow the test to complete, the test did not succeed. Confirm readability of the backup at a later time.
13. The drive light remains on and you receive confirmation as each service on the backup media is confirmed:
Confirming readability of System Databases.
Readability confirmed.
Confirming readability of MS@USCHI007@Servers.
Readability confirmed.After a tape is tested, it automatically rewinds.
14. You are prompted to insert the next tape or diskette in the backup sequence. Repeat steps 12 and 13 until all media in the sequence have been tested.
15. Remove the last backup media and label it if you have not already done so.
16. Press ENTER. One of the following messages appears:
- Backup has passed test
- Backup has failed test
If the backup fails the test, create a new backup. Discard backups that repeatedly fail readability tests.
Note: Confirmation only provides information on the readability of the entire set of media. For backups that use more than one tape or diskette, an error on any one tape or diskette causes the entire set to fail.
Protect the backed-up data by following the procedures in "After Completing the Backup" later in this chapter.
An incremental system backup records changes that occurred in the system following the last complete backup, including changes to all data on the Banyan server (for example, file service information, STDA databases, StreetTalk databases, operating system databases).
Each incremental backup is a part of a backup series that includes the last complete system backup and all of its subsequent incremental backups. You cannot restore information to a server unless you have the appropriate backups.
Caution: An incremental backup does not by itself contain all of the system information you need to restore lost data. For example, incremental backups do not record changes to the system configuration (third-party drivers for communications or peripherals). When restoring information to a server, you must load the last complete system backup before loading the appropriate sequence of incremental backups.
Configuring the Incremental Backup Range
By default, an incremental backup includes whatever changes are written to the server disks after the most recent complete or incremental backup. However, you can alter this default setting so that incremental backups include changes that occurred prior to the most recent incremental backup.
The following section explains how to change the range of an incremental backup.
Setting the Range for Incremental Backups
You can select from among three settings when configuring an incremental backup range. The setting you select determines how much information each incremental backup includes. The following three options are available:
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Since Last Incremental System Backup. |
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Since Incremental Prior to Last |
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Since Last Complete System Backup |
Extending the range of your incremental backups has advantages and disadvantages (Table 3-1).
Choosing Types of Incremental Backups
This section explains the different incremental backup range settings in detail.
Note: Incremental backups never include changes that occurred prior to most recent complete backup.
Since Last Incremental System Backup
This is the default incremental backup range setting. Each backup of this type includes changes that occurred after the most recent complete or incremental backup (Figure 3-5). To restore information to the server, you need to load the last complete system backup, followed by each of the incremental backups created since that complete backup in the order that they were created.
Since Incremental Prior to Last
Each backup of this type includes changes that occurred after the second most recent incremental backup (Figure 3-6). (If two previous incremental backups do not exist, then the backup includes all changes made since the last complete backup.) This option creates an overlap with the backup information stored on the last incremental backup. To restore information to the server, you need to load the most recent complete system backup, followed by every second subsequent incremental backup, up to and including the most recent.
Since Last Complete System Backup
Each backup of this type includes all changes that occurred after the most recent complete backup (Figure 3-7). To restore information to the server, you need to load the most recent complete backup followed by the most recent incremental backup.
Example Restoring from Backups with Different Incremental Range Settings
Suppose you create a complete system backup on Monday. On each of the following days, Tuesday through Friday, you create an incremental backup. On Friday, after you complete the morning's backup, you need to restore the files on the server to the state they were in at the time you began the backup on Friday.
Depending on the incremental range option that you used, you need to load backups as follows:
If you used Since Last Incremental System Backup - You need to load all five backups: Monday's complete backup and the four succeeding incremental backups.
If you used Since Incremental Prior to Last - You need to load three backups: Monday's complete backup and Wednesday's and Friday's incremental backups.
If you used Since Last Complete System Backup - You need to load two backups : Monday's complete backup and Friday's incremental backup.
To Display and Change the Incremental Backup Range
1. From the Operator Menu, select Backup/Restore. The Backup/Restore Menu appears.
2. Select Change Configuration. The Change Configuration Menu appears.
3. Select Incremental Backup Range. The Incremental Backup Range Menu appears.
4. Select an incremental backup range from among the three ranges shown and press ENTER. Your choice appears as the current setting.
5. Press ESC. The Change Configuration Menu appears. The incremental backup range that you set takes effect the next time you create an incremental backup.
To Create an Incremental Backup
1. From the Operator Menu, select Backup/Restore. The Backup/Restore Menu appears.
2. Select Backup. The Backup Menu appears.
3. Select Incremental System Backup. One of the following occurs:
- If you have performed a previous complete backup on the server, the Confirm Backup Screen appears. Continue with step 4.
- If you have not performed a previous complete backup on the server, the following message appears:
Incremental must be preceded by Complete System Backup.
You cannot create an incremental backup unless you have created a complete backup first. Perform a complete backup now and then create an incremental backup at a later time.
4. Select one of the following:
- YES to confirm the readability of the backup media after the backup completes.
- NO if you do not want to confirm the readability of the backup media.
Note: Confirming the readability of the backup media confirms only that the media is not damaged or defective, and can be read by the tape or diskette drive. It does not guarantee that data was correctly backed up to the media. The data on the backup media is not compared with the data on the server.
The Insert Media screen appears.
5. Insert the tape or diskette into the drive and select one of the following:
- CONTINUE to proceed.
- ABORT to cancel the backup and return to the Backup Menu.
If you choose to continue, a message appears, indicating the range of the incremental backup that is beginning. If you are backing up to a tape drive, a message appears, indicating that drive is retensioning the tape. Retensioning the tape can take several minutes.
Note: If a service on the server is not functioning properly, a message appears informing you that the service is in an inconsistent state. You are prompted to choose whether you want to continue. If you continue with the backup, the files and directories in the inconsistent service are not backed up. All other services are backed up normally. If you do not continue, fix the problems with the service before you begin a new backup.
6. The drive light remains on and you receive confirmation as each service is backed up:
Continuing...
Backing up System Databases.
Backup successful.
Backing up MS@USCHI007@Servers.
Backup successful.7. When all information has been backed up, a message reports that the backup is complete. If you are using tape, the tape automatically rewinds. Skip to step 11.
If the backup does not fit on the current tape or diskette, the Insert Media screen appears. A message informs you that the space on the tape or diskette is exhausted. If you are using tape, the tape automatically rewinds. You are then prompted to remove the media from the drive. Remove the tape or diskette and label it.
8. Insert the next tape or diskette in the drive.
9. Enter P and press ENTER to continue with the backup.
10. Repeat steps 7 through 9 for each tape or diskette needed to contain the backup.
11. If you chose not to confirm the readability of the backup in step 4, skip the remaining steps and refer to "After Completing the Backup" later in this chapter. Properly label all media (refer to "Labeling Backup Media" earlier in this chapter).
If you chose to confirm the readability of the backup in step 4, a message appears informing you that the confirmation is beginning.
- For backups that fit on a single tape of diskette, the test begins automatically. Skip to step 13.
- For backups requiring multiple tapes or diskettes, you are prompted to insert the first tape or diskette in the backup sequence. You need to test all tapes or diskettes of the series in the order in which you used them during the backup. Remove the last tape or diskette from the drive.
12. Insert the tape or diskette to be tested into the drive and press ENTER.
If you are using tape, the drive retensions the tape before the test begins.
Note: To cancel the confirmation procedure once it is in progress, press CTRL-C. The tape retensions, the test stops, and the Backup Menu appears. A message indicates that the backup has failed the test. The backup may be readable, but because you did not allow the test to complete, the test did not succeed. Confirm readability of the backup at a later time.
13. The drive light remains on and you receive confirmation as each service on the backup media is confirmed:
Confirming readability of System Databases.
Readability confirmed.
Confirming readability of MS@USCHI007@Servers.
Readability confirmed.After a tape is tested, it automatically rewinds.
14. You are prompted to insert the next tape or diskette in the backup sequence. Repeat steps 12 and 13 until all media in the sequence have been tested.
15. Remove the last backup media and label it if you have not already done so.
16. Press ENTER. One of the following messages appears:
- Backup has passed test
- Backup has failed test
If the backup fails the test, create a new backup. Discard backups that repeatedly fail readability tests.
Note: Confirmation only provides information on the readability of the entire set of media. For backups that use more than one tape or diskette, an error on any one tape or diskette causes the entire set to fail.
Protect the backed-up data by following the procedures in "After Completing the Backup" later in this chapter.
You can manually back up a single service such as a mail service, Server Service, STDA, or a third-party service.
You cannot back up multiple services with a manual backup. Refer to Chapter 4 for information on backing up multiple services.
To Back Up a Single Service
1. From the Operator Menu, select Backup/Restore. The Backup/Restore Menu appears.
2. Select Backup. The Backup Menu appears.
3. Select Service Backup. The Confirm Backup screen appears.
4. Select one of the following:
- YES to automatically confirm readability of the backup.
- NO if you do not want to confirm readability of the backup.
The Insert Media screen appears.
Note: Confirming the readability of the backup media confirms only that the media is not damaged or defective, and can be read by the tape or diskette drive. It does not guarantee that data was correctly backed up to the media. The data on the backup media is not compared with the data on the server.
5. Insert the tape or diskette into the drive.
6. Select one of the following:
- CONTINUE to proceed. The Select Service Menu appears and lists the services available on the server.
- ABORT to cancel the backup and return to the Backup Menu.
7. Move the cursor to the name of the service you want to back up and press ENTER. If the list of available services does not fit on a single screen, press PAGE DOWN or CTRL-D to scroll down through the list, or PAGE UP or CTRL-U to scroll up.
The Begin Backup Menu appears.
8. Select one of the following:
- Begin the Backup.
- Cancel the Backup to return to the Backup Menu.
If you are backing up to a tape drive, a message appears, indicating that the drive is retensioning the tape. Retensioning the tape can take several minutes.
Note: If the service you select is not functioning properly, a message appears informing you that the service is in an inconsistent state. You are prompted to choose whether you want to continue. If you continue with the backup, the files and directories in the inconsistent service are not backed up.
9. The drive light remains on. You receive confirmation as the service is backed up.
Backing up MS@USCHI002@Servers.
10. When the backup completes, the screen displays the name of the service and the number of files and directories backed up. If you are using tape, the tape automatically rewinds. Skip to step 14.
If the backup does not fit on the current tape or diskette, the Insert Media Screen appears. A message informs you that the space on the tape or diskette is exhausted. If you are using tape, the tape automatically rewinds. You are then prompted to remove the media from the drive. Remove the tape or diskette and label it.
11. Insert the next tape or diskette in the drive.
12. Enter P and press ENTER to continue with the backup.
13. Repeat steps 7 through 9 for each tape or diskette needed to contain the backup.
14. If you chose not to confirm the readability of the backup in step 4, skip the remaining steps and refer to "After Completing the Backup" later in this chapter. Properly label all media (refer to "Labeling Backup Media" earlier in this chapter).
If you chose to confirm the readability of the backup in step 4, a message appears informing you that the confirmation is beginning.
- For backups that fit on a single tape of diskette, the test begins automatically. Skip to step 16.
- For backups requiring multiple tapes or diskettes, you are prompted to insert the first tape or diskette in the backup sequence. You need to test all tapes or diskettes of the series in the order in which you used them during the backup. Remove the last tape or diskette from the drive.
15. Insert the tape or diskette to be tested into the drive and press ENTER.
If you are using tape, the drive retensions the tape before the test begins.
Note: To cancel the confirmation procedure once it is in progress, press CTRL-C. The tape retensions, the test stops, and the Backup Menu appears. A message indicates that the backup has failed the test. The backup may be readable, but because you did not allow the test to complete, the test did not succeed. Confirm readability of the backup at a later time.
16. The drive light remains on and you receive confirmation as each service on the backup media is confirmed:
Confirming readability of System Databases.
Readability confirmed.
Confirming readability of MS@USCHI007@Servers.
Readability confirmed.After a tape is tested, it automatically rewinds.
17. You are prompted to insert the next tape or diskette in the backup sequence. Repeat steps 15 and 16 until all media in the sequence have been tested.
18. Remove the last backup media and label it if you have not already done so.
19. Press ENTER. One of the following messages appears:
- Backup has passed test
- Backup has failed test
If the backup fails the test, create a new backup. Discard backups that repeatedly fail readability tests.
Note: Confirmation only provides information on the readability of the entire set of media. For backups that use more than one tape or diskette, an error on any one tape or diskette causes the entire set to fail.
Protect the backed-up data by following the procedures in "After Completing the Backup" later in this chapter.
A system configuration backup copies the configuration information for a server. You require a separate backup of your system configuration information only if you are using a third-party program to manage your backups. If you back up your server using the programs available from the server console's Backup Menu, you do not need to back up system configuration information separately; system configuration information is saved as part of a complete backup.
If you do use a third-party backup program, create a system configuration backup every time you change the configuration of your server. A system configuration backup includes the following information:
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Server hardware settings (Interrupt, I/O, and memory address settings for device drivers and communications cards) |
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Executables for third-party drivers |
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Line settings for ICA cards |
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Memory buffering and caching |
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All StreetTalk databases (attributes, groups) |
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Print service settings |
A system configuration backup does not copy service data from the server. When you restore services from a system configuration backup, the server configuration and service directories are restored, but no data exists in the service directories.
Many third-party programs can restore information to a server only after StreetTalk is already running. To set up a server so that you can restore information to it, you load the information from a system configuration backup. Refer to Chapter 11 for information on using a system configuration backup when re-installing software.
To Back Up the System Configuration
1. From the Operator Menu, select Backup/Restore. The Backup/Restore Menu appears.
2. Select Backup. The Backup Menu appears.
3. Select System Configuration Backup. The Confirm Backup screen appears.
4. Select one of the following:
- YES to automatically confirm readability of the backup.
- NO if you do not want to confirm readability of the backup.
The Insert Media screen appears.
Note: When you confirm the readability of the backup media, you are actually confirming that the media itself is not damaged or defective, and can be read by the tape or diskette drive. Confirming readability does not tell you whether the data is correctly backed up onto the media.
5. Insert the tape or diskette into the drive.
6. Select one of the following:
- CONTINUE to proceed.
- ABORT to cancel the backup and return to the Backup Menu.
If you choose to continue, the drive light goes on. If you are backing up to a tape drive, a message appears indicating that the drive is retensioning the tape. Retensioning the tape can take several minutes.
Caution: If a service on the server is not functioning properly, a message appears informing you that the service is in an inconsistent state. You are prompted to choose whether you want to continue. If you continue with the backup, configuration information for the inconsistent service is not backed up. Information for other services is backed up normally.
7. The drive light remains on. You receive confirmation as each service is backed up.
Backing up system data bases.
Backup successful.
Backing up MS@USCHI002@Servers
Backup successful.The tape rewinds and the following message appears:
Backup successful
The tape retensions.
Depending on whether you chose to confirm the readability of the backup in step 4, one of the following occurs:
- If you chose to confirm the readability of the backup, the tape retensions and the confirmation test begins.
- If you chose not to confirm the readability of the backup, refer to "After Completing the Backup" later in this chapter.
Note: To cancel the procedure once it is in progress, press CTRL-C. If you cancel the confirmation test, the tape retensions, the backup stops and the Backup Menu appears. A message indicates that the backup has failed the test. The backup may be readable, but because you did not allow the test to complete, the test did not succeed. Confirm readability of the backup at a later time.
The drive light remains on and you receive confirmation as each service on the backup media is confirmed:
Confirming readability of system data bases.
Readability confirmed.
Confirming readability of MS@USCHI007@Servers.
Readability confirmed.Note: Confirming the readability of the backup media only confirms that the media is not damaged or defective, and can be read by the tape or diskette drive. It does not guarantee that data was correctly backed up to the media. The data on the backup media is not compared with the data on the server.
After testing of a tape backup, the tape automatically rewinds.
The Backup Menu appears and displays one of the following messages:
- Backup has passed test
- Backup has failed test
If a tape or diskette fails the test, create a new backup. Discard backups that repeatedly fail readability tests.
8. Remove the tape or diskette from the drive.
9. Label the tape or diskette with the server name and revision level, the date, and the words "System Configuration Backup."
Follow the procedures in the next section, "After Completing the Backup," to protect the backed-up data.
1. Confirm the readability of the backup if you have not done so already. Refer to the next section "Confirming the Readability of Backups."
2. Check the backup logs to determine whether errors exist in the backup. Refer to "Displaying the Backup/Restore Logs" in Chapter 5 for information on viewing backup logs.
3. Write-protect the media.
4. Verify that all media are accurately labeled as described in "Labeling Backup Media" earlier in this chapter.
5. Store the backups in a secure place. You may want to store additional copies of your system backups away from your site so that one copy is always safe from fire or other disaster.
Confirming the Readability of Backups
When you confirm the readability of the backup media, you are actually confirming that the media itself is not damaged or defective, and can be read by the tape or diskette drive. Confirming readability does not provide information about whether the data is correctly backed up onto the media.
You can confirm readability of a backup tape either automatically or manually. When you create a backup schedule or when you begin a manual backup, you must choose whether to have the backup automatically tested for readability immediately after the backup completes. If you choose not to confirm your backup media automatically, you can manually confirm readability at a later time.
You can manually confirm backup media, created on any server including servers other than the one where you perform the confirmation.
To Check Backup Media for Damage
1. From the Operator Menu, select Backup/Restore. The Backup/Restore Menu appears.
2. Select Examine Backup. The Examine Backup Menu appears.
3. Insert the tape or diskette you want to examine into the drive.
4. Select Confirm Readability of Backup.
5. The following message appears:
Confirming backup....
Note: To cancel the procedure once it is in progress, press CTRL-C. If you cancel the confirmation test, the tape retensions, the confirmation stops and the Backup Menu appears. A message indicates that the backup has failed the test. The backup may be readable, but because you did not allow the test to complete, the test did not succeed. Confirm readability of the backup at a later time.
If you are using a tape drive, a message appears, indicating that drive is retensioning the tape. Retensioning the tape can take several minutes.
As the process continues, the drive light remains on and you receive confirmation as each service on the backup media is tested for readability:
Confirming readability of System Databases.
Readability Confirmed.
Confirming Readability of MS@Server1@Servers
Readability Confirmed.6. You are prompted to remove the media. If a backup spans multiple tapes or diskettes, you are prompted to insert each one in the correct sequence, until the entire set is tested.
Note: If you previously scheduled a backup for this time, it does not begin until you remove the tape or diskette and verify that it is no longer in the drive by pressing ENTER. This prevents a scheduled backup from accidentally overwriting the media being confirmed. This is only true when confirming tapes manually. When you choose to have a tape automatically confirmed following a scheduled backup, you are not prompted to verify removal of the tape after the test completes.
Following confirmation of a tape backup, the tape automatically rewinds.
7. Remove the backup media and press ENTER. One of the following messages appears:
- Backup tape has passed test.
- Backup tape has failed test.
If a tape or diskette fails the test, create a new backup. Discard backups that repeatedly fail readability tests.
8. Check the Backup/Restore logs for possible errors.
Caution: If you restore system information from a complete backup set that includes faulty media, some data may be permanently lost.
There are two ways to move groups between servers:
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Use MGROUP to move the group dynamically. This option is available on servers running VINES 5.50 and greater. |
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Back up the group to tape or diskette, then restore the group to the target server. |
Because the current version of StreetTalk differs from older versions, you cannot always move StreetTalk groups between servers. Depending on the source and destination of the servers involved, you can move a group using MGROUP, using tape, or not at all. Refer to Managing Users and StreetTalk for specific information on moving groups between server platforms and revisions.
Caution: You cannot move more than one group to a single tape or diskette. If you move a second group to the backup media on which another group's information already exists, the information for the second group overwrites the information for the first group.
To Move a Single StreetTalk Group to Backup Media
1. Shut down services at the server console. You cannot move a StreetTalk group to backup media if services are running. For instructions on shutting down services, see Chapter 2.
2. From the Operator Menu, select Backup/Restore. The Backup/Restore Menu appears.
3. Select Move StreetTalk Group. The Move StreetTalk Group Menu appears.
4. Select Move Group to Device. The Enter Group Name screen appears.
5. Enter the StreetTalk name of the group you want to move and press ENTER. Depending on whether a group with this name exists on the server, one of the following occurs:
- If the group does not exist on this server, the Move StreetTalk Group Menu appears again and displays the following message:
Group specified is unknown.
Verify the name and location of the group and repeat the procedure at the appropriate server.
- If the group does exist on the server, the Continue Operation screen appears.
Note: The backup utility does not check whether the group or any other data already exists on the media. As with all backups, be sure that you do not overwrite important information on the backup media.
6. Select one of the following:
- YES to move the group to the media and delete it from the server. The Insert Media screen appears.
- NO if you do not want to move the group at this time. The Move StreetTalk Group Menu appears.
7. Insert a backup tape or diskette into the drive and select one of the following:
- CONTINUE to proceed.
- ABORT to cancel. The Move StreetTalk Group Menu appears.
The drive light goes on. If you are backing up to a tape drive, a message appears, indicating that drive is retensioning the tape. Retensioning the tape can take several minutes.
As the backup begins, the following messages appear:
Backing up StreetTalk group.
Backup successful.After the group information is successfully copied to the backup media, the tape rewinds and undergoes a test to confirm readability. The group information is removed from the server only after the backup media passes the confirmation test.
Confirming readability of system data bases
Readability confirmed
Rewinding
Deleting group Sales@WCTUS...One of the following occurs:
- If the confirmation is successful, the group information is moved to the backup media and deleted from the server. The Move StreetTalk Group Menu appears and displays the following message:
Group Sales@WCTUS successfully moved to tape.
- If the confirmation is unsuccessful, the operation aborts. The group is not moved to tape and is not deleted from the server.
8. Press ESC to return to the Backup/Restore Menu.
9. Label the tape or diskette with the server name and revision level, the date, the words "StreetTalk Group Backup," and the name of the group you backed up.
10. If you are not now using the backup to move the group to another server, store the backup in a secure place. You may want to store backup copies of your system off site.
11. Restart services.
12. Verify that the group no longer exists on the network. It may take some time before other servers remove the group from their StreetTalk and STDA databases.
To Move a StreetTalk Group from Backup Media to a Server
1. Verify that the group on the backup media does not exist on another network server. Refer to Managing Users and StreetTalk for information on how to search for a StreetTalk group - use the SEARCH function of MGROUP.
2. Shut down services at the server console. You cannot move a StreetTalk group to backup media if services are running. For instructions on shutting down services, refer to Chapter 2.
3. From the Operator Menu, select Backup/Restore. The Backup/Restore Menu appears.
4. Select Move StreetTalk Group. The Move StreetTalk Group Menu appears.
5. Select Move Group from Device. The Insert Media screen appears.
6. Insert the tape or diskette containing the StreetTalk group you want to restore into the drive.
7. Select one of the following:
- CONTINUE to proceed. The Enter Group Name screen appears. The screen displays the name of the group being restored. Continue with step 8.
- ABORT to cancel. The Move StreetTalk Group Menu appears.
8. Press ENTER if the group listed is the group that you want to move to the server. If the group listed is not the group that you want to move, locate the media containing the correct group.
The server checks whether the group already exists. Depending on whether the group exists on the server, one of the following occurs:
- If the group does not already exist on the server, the process of copying the group information begins. Skip to step 10.
- If the group already exists on the server, the Continue Operation screen appears. Continue with step 9.
9. If a group already exists on the network, the Continue Operations screen appears. You are prompted to select one of the following:
- YES to overwrite the current group information on the server and continue. The process of copying the group information begins.
- NO to cancel the procedure and return to the Move StreetTalk Group Menu.
10. After the group information has been copied to the server, the Move StreetTalk Group Menu appears and displays the following message:
Group Sales@WCTUS successfully moved from tape.
Note: Moving a group from the backup media does not delete the information that exists on the backup media.
11. Remove the backup media from the drive.
12. Press ESC to return to the Backup/Restore Menu.
13. Restart services. For several minutes afterwards, the Service Monitor on servers that maintain services associated with this group may report an inconsistent state for those services.