4.0.0 HP Polyserve Matrix Server Administration Guide (T5392-96052, March 2010)

<uuid/partno> indicates the membership partition to be resilvered. <uuid> is
the UUID for the device and <partno> is the number of the partition on the device.
The membership partition is resilvered from a known valid membership partition.
Without the --force option, the command will fail if mprepair cannot find two
valid membership partitions to use as a source for the resilver operation. The --force
option overrides this requirement and causes the resilver operation to take place.
Inactivate a membership partition. To inactivate membership partitions that are
marked as active but are not part of the current set defined by the membership
partition list, enter the following command:
mprepair --inactivate_mp <uuid/partno>
<uuid> is the UUID for the device and <partno> is the number of the partition on
the device.
This option is useful if the cluster includes old membership partitions that are marked
active or if you want to import a disk that contains an active membership partition.
Clear the host registry. The --clear_hr option removes all entries from the server
registry. This command should be used only under the direction of HP Support.
Reset the Cluster-ID. When a cluster is created, it is assigned a Cluster-ID that is used
internally to identify the cluster. This ID is stored in the membership partitions. If the
steps for performing cluster configuration operations or cluster upgrades are not
followed precisely, it is possible for the Cluster-ID to become out-of-sync among the
membership partitions, preventing Matrix Server from starting. This condition is
unlikely; however, if Matrix Server cannot be started on any server in the cluster, you
can use the following command to determine whether all membership partitions have
a valid Cluster-ID.
mprepair --sync-clusterids
The command displays the Cluster-IDs found in each membership partition and flags
those partitions containing an invalid ID. You can then specify whether you want the
command to repair the partitions having a mismatched Cluster-ID.
mprepair --get_current_mps can also be used to obtain more information
about the membership partitions.
Change a Host Bus Adapter or driver
Matrix Server and the psd driver must be disabled when you add, remove, or update
a Host Bus Adapter or its driver. The following procedure describes how to change
a Host Bus Adapter or driver on a server. All commands are run from the Command
Prompt.
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