Building Disaster Recovery Serviceguard Solutions Using Metrocluster with Continuous Access XP P9000 for Linux B.01.00.00

Q, R
remote failover Failover to a node at another data center or remote location.
resynchronization The process of making the data between two sites consistent and current once systems are restored
following a failure. Also called data resynchronization.
rolling disaster A second disaster that occurs before recovering from a earlier disaster, For Example, while data
is being synchronized between two data centers after a disaster, one of the data centers fails,
interrupting the data synchronization process. Rolling disasters might result in data corruption
that requires a reload from tape backups.
S
SVOL A secondary volume configured in an series disk array that uses Continuous Access. SVOLs are
the secondary copies in physical data replication with Continuos Access on the .
T
transparent
failover
A client application that automatically reconnects to a new server without the user taking any
action.
transparent IP
failover
Moving the IP address from one network interface card (NIC), in the same node or another node,
to another NIC that is attached to the same IP subnet so that users or applications might always
specify the same IP name/address whenever they connect, even after a failure.
U-Z
volume group In LVM, a set of physical volumes such that logical volumes can be defined within the volume
group for user access. A volume group can be activated by only one node at a time. Serviceguard
can activate a volume group when it starts a package. A given disk can belong to only one
volume group. A logical volume can belong to only one volume group.
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