Managing HP Serviceguard for Linux Ninth Edition, April 2009

Supported Disk Interfaces
The following interfaces are supported by Serviceguard for disks that are connected
to two or more nodes (shared data disks):
• MSA (Modular Smart Array) 2000 family
• FibreChannel.
For information on configuring multipathing, see “Multipath for Storage ” (page 96).
Disk Monitoring
You can configure monitoring for disks and configure packages to be dependent on
the monitor. For each package, you define a package service that monitors the disks
that are activated by that package. If a disk failure occurs on one node, the monitor
will cause the package to fail, with the potential to fail over to a different node on which
the same disks are available.
Sample Disk Configurations
Figure 2-2 shows a two node cluster. Each node has one root disk which is mirrored
and one package for which it is the primary node. Resources have been allocated to
each node so that each node can adopt the package from the other node. Each package
has one disk volume group assigned to it and the logical volumes in that volume group
are mirrored.
Redundant Disk Storage 35