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Performing Routine Disk Operations
Guardian User’s Guide — 425266-001
9- 11
Bringing Up the Down Half of a Mirrored Disk
4. Check the status of $DATA00:
-> STATUS DISK $DATA00
The STOPPED status in this listing confirms that the paths to the primary disk
$DATA00-P and $DATA00-B are now down.
5. Stop the drive.
6. When the disk stops spinning, physically remove the disk pack.
Bringing Up the Down Half of a Mirrored Disk
SCF determines when a revive is needed and prompts you. If a disk is part of a mirrored
volume and half of the disk pair is already up, bring up the downed half of the mirrored
disk into the STARTED state:
1. Make sure you are logged on as a super-group user (255,
n
).
2. Start the SCF program:
> SCF
3. Check for bad sectors and checksum errors on $
disk
:
-> INFO DISK $disk, BAD
4. If there are errors, correct them.
5. Perform the START DISK operation:
-> START DISK $disk
A warning message and verification request is displayed:
6. Enter Y to continue.
The START DISK operation copies data from the up half to the down half while
concurrent processing on the up half continues.
To check the status of the operation:
-> STATUS DISK $disk , DETAIL
Example
This example shows how to revive a mirrored disk, half of which has been physically
removed for use as a disk backup and replaced with a new disk pack. The mirrored disk
$DATA01 is physically demountable and an SCF STATUS DISK command shows both
$DATA01-M and $DATA01-MB to be down.
STORAGE - Status DISK\ALM171.$DATA00
LDev Primary Backup Mirror MirrorBackup Primary Backup
PID PID
6 STOPPED STOPPED STARTED STARTED 0,10 1,10
Содержание Guardian
Страница 24: ...About This Guide Guardian User s Guide 425266 001 xxii Your Comments Invited ...
Страница 30: ...Part I Using the Compaq Tandem Advanced Command Language TACL Guardian User s Guide 425266 001 ...
Страница 100: ...Part II Managing Files Using the File Utility Program FUP Guardian User s Guide 425266 001 ...
Страница 146: ...Part III Managing Disk and Tape Processes Guardian User s Guide 425266 001 ...
Страница 232: ...Backing Up and Restoring Disk Information Guardian User s Guide 425266 001 11 26 Backcopy Examples ...
Страница 234: ...Part IV Using the Spooler and Its Utilities Guardian User s Guide 425266 001 ...
Страница 248: ...Introduction to the Spooler Guardian User s Guide 425266 001 12 14 Sending Output to a SPOOL DEFINE ...
Страница 300: ...Performing Routine Spooler Operations Using Spoolcom Guardian User s Guide 425266 001 14 38 Problem Solving Summary ...
Страница 322: ...Part V Security Features and Other Guardian Utilities Guardian User s Guide 425266 001 ...
Страница 368: ...Monitoring Event Messages Guardian User s Guide 425266 001 17 14 Using the Event Viewer ...
Страница 378: ...Displaying Version and System Information Guardian User s Guide 425266 001 18 10 Task 2 Interpret SYSINFO Output ...
Страница 410: ...Monitoring Hardware Components Guardian User s Guide 425266 001 19 32 Automating System Monitoring ...
Страница 460: ...Index Guardian User s Guide 425266 001 Index 24 Special Characters ...