This site best when viewed with a modern standards-compliant browser. We recommend Firefox Get Firefox!.

Linux-HA project logo
Providing Open Source High-Availability Software for Linux and other OSes since 1999.

USA Flag UK Flag

Japanese Flag


About Us

Contact Us

Legal Info

How To Contribute

Security Issues

This web page is no longer maintained. Information presented here exists only to avoid breaking historical links.
The Project stays maintained, and lives on: see the Linux-HA Reference Documentation.
To get rid of this notice, you may want to browse the old wiki instead.

1 February 2010 Hearbeat 3.0.2 released see the Release Notes

18 January 2009 Pacemaker 1.0.7 released see the Release Notes

16 November 2009 LINBIT new Heartbeat Steward see the Announcement

Last site update:
2020-08-05 12:06:56

ServeRAID Logical Volume

A ServeRAID Logical volume is a logical presentation of a ServeRAID Merge Group to the adapter, and hence to the operating system. It corresponds to a SCSI ID in the Linux world.

If the Merge Group is a permanent (non-shared) merge group, then the logical volume will have a fixed SCSI ID. If it is a shared merge group, and there is more than one shared merge group in the system, the SCSI ID will vary depending on when it is made available to the system.

Logical Volumes are assigned in the order they're made available. So, if you have more than one, your SCSI IDs might be different depending on the order you HA system has made them available to the system.

This means that in an ActiveActive arrangement, you cannot rely on knowing what the SCSI ID is, and must rely on volume labels, or uuids, or logical volume managers to perform the association between the volume and the mount point for you.

You can do this with the Filesystem resource agent by using the -L or -P flags in the resource specification.

See Also

ServeRAIDMergeGroup, ServeRAID