Red Hat ENTERPRISE LINUX 5 - ADMINISTRATION Manual page 39

• Egenera SAN Controller
• GNBD
• IBM Blade Center
• McData SAN Switch
• QLogic SANbox2
• SCSI Fencing (*See Note)
• Virtual Machine Fencing
• Vixel SAN Switch
• WTI Power Switch
Note
Use of SCSI persistent reservations as a fence method is supported with the following
limitations:
• SCSI fencing is not supported in a two-node cluster.
• When using SCSI fencing, all nodes in the cluster must register with the same devices
so that each node can remove another node's registration key from all the devices it is
registered with.
• Devices used for the cluster volumes should be a complete LUN, not partitions. SCSI
persistent reservations work on an entire LUN, meaning that access is controlled to
each LUN, not individual partitions.
• SCSI fencing cannot be used in conjunction with qdisk.
The following non-shared fence devices are available:
• Dell DRAC
• HP iLO
• IBM RSA II
• IPMI LAN
• RPS10 Serial Switch
This section provides procedures for the following tasks:
• Creating shared fence devices — Refer to
procedures apply only to creating shared fence devices. You can create non-shared (and shared)
fence devices while configuring nodes (refer to
• Modifying or deleting fence devices — Refer to
Device". The procedures apply to both shared and non-shared fence devices.
Section 3.5.1, "Creating a Shared Fence
Section 3.6, "Configuring Cluster
Section 3.5.2, "Modifying or Deleting a Fence
Configuring Fence Devices
Device". The
Members").
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