Hitachi Universal Replicator (TM) for Mainframe User Guide: HP XP24000 Disk Array, HP XP20000 Disk Array (T5278-96044, May 2011)

ManualsBrandsHP ManualsSoftwareHP StorageWorks Continuous Access XP Media

and/or secondary sites. Table 22 (page 72) describes the host pair status reporting for Universal

Replicator for Mainframe volumes, ShadowImage for Mainframe volumes, and Universal Replicator

for Mainframe/ShadowImage for Mainframe shared volumes. Table 23 (page 72) shows the

currency of the data on a shared Universal Replicator for Mainframe/ShadowImage for Mainframe

volume based on the Universal Replicator for Mainframe and ShadowImage for Mainframe pair

status.

• For shared Universal Replicator for Mainframe/ShadowImage for Mainframe volumes, the

Universal Replicator for Mainframe pair status is reported to the host if you query the Universal

Replicator for Mainframe primary data volume or secondary data volume. To obtain the

ShadowImage for Mainframe pair status, query the target volume (T-VOL) of the ShadowImage

for Mainframe pair.

• ShadowImage for Mainframe supports multiple T-VOLs for each source volume (S-VOL). If you

issue a pair status query to a ShadowImage for Mainframe S-VOL (for example, pairdisplay),

the status for only one ShadowImage for Mainframe pair is reported (the pair with the T-VOL

with the lowest LDEV ID). To obtain the pair status for the ShadowImage for Mainframe pair(s)

with the other T-VOL(s), you must direct the host query to the specific S-VOL using the T-VOL’s

LDEV ID in the host command. The ShadowImage for Mainframe remote console software

displays the port, TID, LUN, LDEV ID, and ShadowImage for Mainframe pair status for all

T-VOLs associated with an S-VOL.

Table 22 Host Pair Status Reporting for Universal Replicator for Mainframe/ShadowImage for

Mainframe Shared Volumes

Pair status reported by the XP disk arrayNumber of

ShadowImage

for Mainframe

T-VOLs

Number of

Universal

Replicator for

Mainframe

pairs

Simplex00

ShadowImage for Mainframe pair status10

ShadowImage for Mainframe pair status for the pair whose S-VOL has

the lowest LDEV ID

2 or more0

Universal Replicator for Mainframe pair status01

Universal Replicator for Mainframe pair status11

Universal Replicator for Mainframe pair status2 or more1

Table 23 Data Currency of a Shared Universal Replicator for Mainframe/ShadowImage for

Mainframe Volume

ShadowImage for Mainframe pair statusUniversal

Replicator for

Mainframe

pair status

SuspendedResyncSplitSplit-PendingDuplexPending

Duplex

Not currentNot currentCURRENTNot currentNot currentNot currentPending

Duplex

Not currentNot currentCURRENTNot currentNot currentNot currentDuplex

Not currentCURRENTCURRENTCURRENTCURRENTNot currentSuspended

72 Preparing for Universal Replicator for Mainframe Operations