Failover, Failback, Failover failback – HP XP P9500 Storage User Manual

Page 342: Operating procedure

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7.

From the primary site, execute the YKRESYNC command for the Continuous Access Journal Z
copy pair between the intermediate site and the remote site.

YKQUERY

YKRESYNC

YKEWAIT GOTO(DUPLEX)

Operation returns to normal.

Operating procedure during a primary site storage system failure (volatile)

The following are the procedures that must be performed when a volatile failure occurs in the
primary site storage system.

Failover

If a volatile failure occurs in the primary site storage system, perform the same failover procedure
as the one used during storage system maintenance at the primary site. See

“Failover” (page 333)

in

“Performing primary site storage system maintenance” (page 333)

.

Failback

If a volatile failure occurs in the primary site storage system, perform the same failback procedure
as the one used during storage system maintenance at the primary site. See

“Failback” (page 333)

in

“Performing primary site storage system maintenance” (page 333)

.

Operating procedure during a primary site storage system failure (nonvolatile)

The following is the procedure required when a nonvolatile failure occurs in the primary site storage
system.

Failover

If a nonvolatile failure occurs in the primary site storage system, perform the same failover procedure
as the one used during storage system maintenance at the primary site. See

“Failover” (page 333)

in

“Performing primary site storage system maintenance” (page 333)

.

Failback

If a nonvolatile failure occurs in the primary site storage system, perform the same failback procedure
as the one used during storage system maintenance at the primary site. See

“Failback” (page 333)

in

“Performing primary site storage system maintenance” (page 333)

.

342 Maintenance and troubleshooting operations

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