VERITAS Volume Manager Recovery Strategy Scenarios...

Gathered By: John Kazerooni

VERITAS Volume Manager Recovery Strategy

Important Note: Always encapsulated and mirror the boot disk.

To get more information about how to encapsulate and mirror a

Boot disk click here.

IMPORTANT: For more information, please read VERITAS Volume Manager Manuals.

Recovery Scenarios:

• Non-encapsulated boot disk; one disk in rootdg that fails,

• Non-encapsulated boot disk failure,

• Encapsulated, un-mirrored boot disk failure and assuming boot disk is the only disk in rootdg,

• Encapsulated, un-mirrored boot disk failure and assuming other disks exist in rootdg.

Non-encapsulated boot disk; one disk in rootdg that fails:

• Replace your physical disk.

• Initialize rootdg:

# vxdg init rootdg

• Initialize your replaced disk and add it to rootdg.

# vxdisksetup –i c3t9d0

# vxdg –g rootdg adddisk disk01=c3t9d0

• Start vxconfigd.

# vxconfigd –k –m enable

or

# vxdctl enable

• Create all lost volumes and restore them.

Non-encapsulated boot disk failure:

• Replace your physical disk.

• Install Solaris OS using the same host name.

• Add VxVM packages.

• Add VxVM licenses.

• Delete the install-db flag file

# rm /etc/vx/reconfig.d/stat.d/install-db

• Start I/O daemons:

# vxiod set 10

• Start vxconfigd in disabled mode

# vxconfigd –k –d

• Initialize the volroot file:

# vxdctl init host name

• Change vxconfigd to enabled mode to scan disks and import disk groups:

# vxdctl enable

• Edit the /etc/vfstab to reflect the changes.

• Mount all the necessary file systems.

• Restore all binaries.

• Shutdown and start the server.

Alternative: restore the boot disk file system from backup. The VxVM binaries and all

Configuration files, including the volroot file and VxVM licenses.

Encapsulated un-mirrored boot disk failure and assuming boot disk is the only disk in rootdg:

• Replace the disk.

• Install SUN Solaris OS using the same host name.

• Add VxVM packages.

• Run vxinstall to re-create rootdg and encapsulate the boot disk. No action on other disks.

• Reboot the server.

Encapsulated, un-mirrored boot disk failure and assuming other disks exist in rootdg:

• Replace the disk.

• Install Solaris OS using the same host name.

• Add VxVM packages. (Don’t run vxinstall)

• Add VxVM licenses.

# vxlicinst

• Delete the install-db flag file.

# rm /etc/vx/reconfig.d/stat.d/install-db

• Start I/O daemons.

# vxiod set 10

• Start vxconfigd in disabled mode.

# vxconfigd –k –d

• Initialize the volboot file.

# vxdctl init hostname

• Configure vxconfigd to enabled mode to scan disks and import disk groups.

# vxdctl enable

• Edit the /etc/vfstab and mount file system.

• Install binaries.

Alternative: restore the boot disk file system from backup. The VxVM binaries and all

Configuration files, including the volroot file and VxVM licenses.