Mirroring Sbd (Cluster) Partitions - Novell OPEN ENTERPRISE SERVER CLUSTER SERVICES 1.8.2 - ADMINISTRATION Manual

After creating the SBD partition, you must edit the Cluster object in eDirectory and enable the
Shared Disk Flag attribute. You must then save changes and reboot the cluster. To do this
1 Start iManager, click eDirectory Administration, then click Modify Object.
2 Enter the Cluster object name, or browse and select it, then click OK.
3 Under Valued Attributes, click NCS:Shared Disk Flag, then click Edit.
4 Check the NCS:Shared Disk Flag check box, then click OK.
5 Click Apply to save changes, then reboot the cluster.

4.6.10 Mirroring SBD (Cluster) Partitions

To achieve a greater level of fault tolerance, you can mirror SBD partitions. You must use the
evmsgui utility to create and mirror SBD partitions. If an SBD partition was created either during
the Novell Cluster Services installation or later using the sbdutil command, you must delete that
partition prior to creating and mirroring SBD partitions using evmsgui. To see if an SBD partition
already exists, enter sbdutil -f at the server console of a Linux cluster server. (See
page 20
If an SBD partition was created during the Novell Cluster Services installation or later using the
sbdutil command, delete it.
1 Enter cluster down at the server console of one cluster server.
2 Delete the SBD partition.
To create an SBD partition using evmsgui:
1 At the Linux server console of a cluster server, enter evmsgui to start the evmsgui utility.
2 Click Action, then click Create.
3 Click Segment, choose the NetWare Segment Manager, then click Next.
4 Select Free Space Storage Object, then click Next.
5 Specify 8 MB as the size of the cluster partition, then choose SBD as the partition type.
6 Enter the name of your cluster as the Label, then click Create.
If necessary, repeat the above steps to create a second SBD partition.
To mirror SBD partitions:
1 At the Linux server console of a cluster server, enter evmsgui to start the evmsgui utility.
2 Click Segments.
3 Locate one SBD partition and right-click it.
4 Select Mirror Segment, then click OK.
5 Reboot all cluster nodes.
60 OES Novell Cluster Services 1.8.2 Administration Guide for Linux
for more information on SBD partitions.)
This will cause all cluster servers to leave the cluster.
You can use nssmu, evmsgui, or other utilities to delete the SBD partition.
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