HP StorageWorks 8000 NAS - Manual (Page 159)

Recovering from a Disaster 157
Re
co
ve
rin
g f
rom
a
D
isa
st
er
Restoring the NAS Server and Storage Array
If both the server and storage array(s) fail, the following process recovers the
server first, then the storage array(s).
■ Recover the NAS head, as described in Restoring the NAS Server Restoring the NAS Server Restoring the NAS Server Restoring the NAS Server.
■ After rebooting the NAS head, recover storage array(s) starting from step
4 in Restoring a Storage Array Restoring a Storage Array Restoring a Storage Array Restoring a Storage Array.
Note The recovery process runs following the installation of the
replacement NAS head and/or storage hardware and requires
action from a system administrator.
■ The recovery process assumes that the replacement hardware
is identical to the original hardware that failed. While recovery
may be attempted on differing replacement hardware, or
hardware of differing capacities, successful results are not
guaranteed.
■ If there is a failure while recovering the storage array
configuration due to the use of different storage hardware, or
hardware of differing storage capacities, then the administrator
will have to manually configure the replacement storage array
hardware.
■ The recovery process assumes that the NAS server that is used
for recovery is running the same version of the NAS operating
system (at the same patch level) that was running when the DRF
file was created. For example, a NAS operating system version
1.2 cannot be used to recover a configuration contained in a
DRF file that was created by an earlier NAS operating system
version 1.1.
The recovery process can assist with SAN-based installations by providing
information required by the Administrator to manually recover volume groups
and file volumes. This information is posted in the DISASTER_RECOVERY
volume after running the text command: recoverSystemStorageConfig.