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Maintaining and Managing the Storage Router

193IP Storage Router SR2122-2 User Guide

Note: Because there are only two storage routers in the cluster, you do not need to

specify the failover destination.

4. show cluster or show scsirouter scsi1 stats —

Verify that the specified SCSI routing instance, scsi1, is no longer running on

the storage router, StorageRouterSys1.

Once the failover is complete, establish a Telnet session to StorageRouterSys2 and

verify — using CLI commands described in Step 1 and Step 2 above — that the

SCSI routing instance, scsi1, is now running on that storage router.

This is considered a temporary move because StorageRouterSys1 is still

designated as the primary storage router for the SCSI routing instance, scsi1. If,

for example, StorageRouterSys1 is rebooted, scsi1 will stop running on

StorageRouterSys2 and will start up and run on StorageRouterSys1.

Note: Use caution if you change the configuration of a SCSI routing instance while it is

running on the storage router that is not the instance’s configured primary storage

router. If the instance’s configuration changes while the designated primary storage

router for that instance is down (or otherwise removed from the cluster), the changes

will not be propagated to that storage router. When the primary storage router reboots

(or otherwise returns to the cluster), it will reassert itself as the primary and will start to

run the instance using the last configuration it had before leaving the cluster.

Failover as Permanent Move

Referring to the example cluster scenario previously described, the following

procedure moves the SCSI routing instance, scsi2, from its primary, or preferred,

storage router, StorageRouterSys1, to the other storage router on a permanent

basis. The commands in this procedure are issued from a CLI session from storage

router, StorageRouterSys1.

1. enable — Enter Administrator mode.

2. show cluster or show scsirouter scsi2 stats — Verify

that the instance to be moved, scsi2, is indeed running on storage router,

StorageRouterSys1.

3. scsirouter scsi2 primary StorageRouterSys2 — Set

StorageRouterSys2 as the primary storage router for the desired SCSI routing

instance, scsi2.

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Hp StorageWorks IP Storage Router Manual de usuario Pagina 193