SPARC: How to Restore a Non-Encapsulated root (/) File System (VERITAS Volume Manager)

Use this procedure to restore a non-encapsulated root (/) file system to a node. The node being restored should not be booted. Be sure the cluster is running problem-free before performing the restore procedure.

Since you must partition the new disk using the same format as the failed disk, identify the partitioning scheme before you begin this procedure, and recreate file systems as appropriate.

Steps

1. Replace the failed disk on the node where the root file system will be restored.

   Refer to disk replacement procedures in the documentation that came with your server.

2. Boot the node that you want to restore.

   • If you are using the Solaris CD, at the OpenBoot PROM ok prompt, type the following command:

     ok boot cdrom -s

   • If you are using a Solaris JumpStart^TM server, at the OpenBoot PROM ok prompt, type the following command:

     ok boot net -s

3. Create all the partitions and swap on the root disk using the format command.

   Recreate the original partitioning scheme that was on the failed disk.

4. Create the root (/) file system and other file systems as appropriate, using the newfs command.

   Recreate the original file systems that were on the failed disk.

   ---

   Note –

   Be sure to create the /global/.devices/node@nodeid file system.

   ---

5. Mount the root (/) file system on a temporary mount point.

   # mount device temp-mountpoint

6. Restore the root (/) file system from backup, and unmount and check the file system.

   # cd temp-mountpoint # ufsrestore rvf dump-device # rm restoresymtable # cd / # umount temp-mountpoint # fsck raw-disk-device

   The file system is now restored.

7. Install a new boot block on the new disk.

   # /usr/sbin/installboot /usr/platform/`uname -i`/lib/fs/ufs/bootblk raw-disk-device

8. Reboot the node in multiuser mode.

   # reboot

9. Update the disk ID using the scdidadm command.

   # scdidadm -R /dev/rdsk/disk-device

10. Press Control-d to resume in multiuser mode.

    The node reboots into cluster mode. The cluster is ready to use.

Example 9–8 SPARC: Restoring a Non-Encapsulated root (/) File System (VERITAS Volume Manager)

The following example shows a non-encapsulated root (/) file system restored to the node phys-schost-1 from the tape device /dev/rmt/0.

[Replace the failed disk and boot the node:]

Boot the node from the Solaris CD. At the OpenBoot PROM ok prompt, type the following command:

ok boot cdrom -s
...
[Use format and 
newfs to create partitions and file systems]
[Mount the root file system on a temporary mount point:]
# mount /dev/dsk/c0t0d0s0 /a
[Restore the root file system:]
# cd /a
# ufsrestore rvf /dev/rmt/0
# rm restoresymtable
# cd /
# umount /a
# fsck /dev/rdsk/c0t0d0s0
[Install a new boot block:]
# /usr/sbin/installboot /usr/platform/`uname \
-i`/lib/fs/ufs/bootblk /dev/rdsk/c0t0d0s0

[Reboot:]
# reboot
[Update the disk ID:]
# scdidadm -R /dev/rdsk/c0t0d0