Hp StorageWorks XP Remote Web Console Software Manual do Utilizador descarregar pdf (Página 51)

After marking these primary data volume tracks as modiﬁ ed, the primary storage system discards

these journal data. This ensures that journal data lost during transmission to the secondary storage

system are identiﬁed and marked.

• The journal data that reached the secondary storage system but have not yet been settled.

After marking these secondary data volume tracks as modiﬁed, the secondary storage system

discards these journal data.

• The primary data volume records updated by host-requested write I/Os after the pair was

suspended.

When a suspended URz pair is resumed (resynchronized), the contents of the secondary storage system’s

cylinder/track bitmap are sent to the primary storage system and merged into the primary storage system’s

bitmap. The primary storage system then performs the resync operation according to the merged bitmap.

This ensures that all the tracks including the discarded journal data are resynchronized at this time.

Business Continuity Manager Support

The XP storage systems on which URz is installed support the Business Continuity Manager commands. If

the host system console issues the Business Continuity Manager commands to the XP storage system,

the URz pair operations can be performed. The Business Continuity Manager commands allow you to

add pairs,

suspend pairs, resume pairs, release pairs, monitor the pair status, add DKC, and delete

DKC. Table 8 on page 52 and Table 9 on page 53 explain the XP disk array system adapter ID(SAID)

values. For further information and instructions on Business Continuity Manager, please refer to the

Business Continuity Manager User’s Guide.

Hitachi Universal Replicator for z/OS user guide for XP12000/XP10000 Disk Arrays and SVS 200

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Hp StorageWorks XP Remote Web Console Software Manual do Utilizador Página 51