Recovery Following A System Failure; Failback - Sun Microsystems Virtual Tape Library User Manual

6
CHAPTER
Recovery following a system failure
To recover a VTL high‐availability system following a failure on one node, carry out
the following tasks:
"Failback" on page 147
"Resuming backups following a failover/failback" on page 157.

Failback

For best results, run failback as a manual process, using the procedure outlined
below.
Initiating failback
For the purposes of this description, the current, active node is VTLPLUSN2, the
failover node for VTLPLUSN1, the failed/offline node.
1. Open a terminal window on the management host, and ssh to the IP address of
the currently active node, VTLPLUSN2:
VTL_Plus
[
Connecting to nnn.nnn.nnn.nny ...
Password:
where nnn.nnn.nnn.nny is the management or "server" IP address of VTLPLUSN2,
the node that took over for the failed server node, VTLPLUSN1 and vtladmin is
the VTL administrator account user ID.
2. Make sure that you are logged in to the actual, active node:
VTL_Plus
[
SunOS VTLPLUSN2 n.nn Generic_nnnnnn-nn i86pc i386 i86pc
96267 • G
]vtladmin# ssh vtladmin@nnn.nnn.nnn.nny
]vtladmin# uname -a
147