Handling backup system failure – HP 3PAR Operating System Software User Manual

Page 247

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c.

Issue the showrcopy command on the asynchronous periodic backup system (SystemC)
and verify that it has resumed the role of backup system.

The following example shows the showrcopy command output for SystemC:

# showrcopy

Remote Copy System Information

Status: Started, Normal

Target Information

Name ID Type Status Options Policy

SystemA 42 IP ready mirror_config

SystemB 44 IP ready mirror_config

Link Information

Target Node Address Status Options

SystemA 0 10.100.33.96 Up

SystemA 1 10.101.33.96 Up

SystemB 0 10.100.33.195 Up

SystemB 1 10.101.33.195 Up

receive 0 receive Up

receive 1 receive Up

Group Information

Name Target Status Role Mode Options

multi.1.r96 SystemA Started Secondary Periodic Period 5m, over_per_alert

LocalVV ID RemoteVV ID SyncStatus LastSyncTime

testvv.0 300 testvv.0 100 Synced 2009-06-29 14:57:34 PDT

testvv.1 301 testvv.1 101 Synced 2009-06-29 14:57:33 PDT

testvv.2 302 testvv.2 102 Synced 2009-06-29 14:57:35 PDT

testvv.3 303 testvv.3 103 Synced 2009-06-29 14:57:32 PDT

Name Target Status Role Mode Options

multi.1.r96 SystemB Backup Secondary Periodic Period 5m, over_per_alert

LocalVV ID RemoteVV ID SyncStatus LastSyncTime

testvv.0 300 testvv.0 200 Synced 2009-06-29 14:57:45 PDT

testvv.1 301 testvv.1 201 Synced 2009-06-29 14:57:46 PDT

testvv.2 302 testvv.2 202 Synced 2009-06-29 14:57:42 PDT

testvv.3 303 testvv.3 203 Synced 2009-06-29 14:57:46 PDT

Handling Backup System Failure

If one backup system in an SLD remote-copy configuration fails, remote copy can still continue
between the primary system and the second backup system.

Figure 69 (page 248)

illustrates an SLD configuration in which the backup system (SystemB), fails,

yet remote copy in asynchronous periodic mode still continues between the primary system (SystemA)
and second backup system (SystemC). Similarly, if SystemC failed, remote copy in synchronous
mode would still continue between the primary system (SystemA) and the first backup system
(SystemB).

Handling Backup System Failure 247

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