Installation guide

Fencing is configured and managed in Red Hat Cluster Suite. For more information about fen-

cing options, refer to Configuring and Managing a Red Hat Cluster.

4. Fibre Channel Storage Network

Table 2.2, “Fibre Channel Network Requirements” shows requirements for GFS nodes that are

to be connected to a Fibre Channel SAN.

Requirement Description

HBA (Host Bus Adapter) One HBA minimum per GFS node

Connection method

Fibre Channel switch

Note: If an FC switch is used for fencing, you may want to

consider using Brocade, McData, or Vixel FC switches,

for which Red Hat Cluster Suite fencing agents exist.

Refer to Configuring and Managing a Red Hat Cluster for

more information about supported fencing agents.

Note: When a small number of nodes is used, it may be

possible to connect the nodes directly to ports on the stor-

age device.

Note: FC drivers may not work reliably with FC hubs.

Table 2.2. Fibre Channel Network Requirements

5. Fibre Channel Storage Devices

Table 2.3, “Fibre Channel Storage Device Requirements” shows requirements for Fibre Channel

devices that are to be connected to a GFS cluster.

Requirement Description

Device Type

FC RAID array or JBOD

Note: Make sure that the devices can operate reliably

when heavily accessed simultaneously from multiple initi-

ators.

Note: Make sure that your GFS configuration does not ex-

ceed the number of nodes an array or JBOD supports.

Size 8 TB maximum supported per GFS file systen.

Table 2.3. Fibre Channel Storage Device Requirements

6. Network Power Switches

4. Fibre Channel Storage Network