HP XP Business Copy Software - Manual (Page 30)

You cannot use migration volumes, destination volumes, and reserved volumes for XP Auto LUN
for SIz pair operations (the command will be rejected). To use XP Auto LUN volumes for SIz pair
operations, you must release the volumes by XP Auto LUN.
HP StorageWorks XP External Storage Software
SIz operations can also be performed in conjunction with XP External Storage operations to create
pairs with external volumes. For the details on the external volumes, see the HP StorageWorks
XP24000/XP20000 External Storage Software User's Guide.
Hitachi TrueCopy™ for Mainframe
TCz volumes can be assigned to SIz pairs, and vise versa.
CAUTION: When performing the QuickRestore pairresync operation on the SIz pair which shares
the volume with TrueCopy Asynchronous for Mainframe, SIz S-VOL and T-VOL must be allocated
to the same CLPR. Specify the Reverse Copy mode instead of the Quick Restore mode when
resynchronizing the SIz pair whose S-VOL and T-VOL are allocated to the different CLPR.
HP recommends ShadowImage for Mainframe for intra-storage system copy operations. If
ShadowImage for Mainframe is not installed, TCz (synchronous only) can be used to copy within
the same XP storage system. This TCz configuration requires at least one external Fibre Channel
interface cable loop (a minimum of two is recommended).
ShadowImage for Mainframe and XP Continuous Access for Mainframe can function together in
the same XP storage system to provide both internal and remote backup for your important data.
•
When SIz and TCz pairs share the same volume, to obtain the SIz pair status, query from the
host:
◦ The T-VOL status of the SIz pair if the SIz S-VOL and TCz M-VOL share the same volume,
◦ The T-VOL status of the SIz pair if the SIz S-VOL and TCz R-VOL share the same volume,
and
◦ The S-VOL status of the SIz pair if the SIz T-VOL and TCz M-VOL share the same volume.
•
ShadowImage for Mainframe supports multiple T-VOLs for each S-VOL. If you issue a pair
status query to an SIz S-VOL, the status for only one SIz pair is reported (the pair with the
T-VOL with the lowest LDEV ID). To obtain the pair status for the SIz pairs with the other T-VOLs,
you must direct the host query to the specific T-VOL using the T-VOL’s LDEV ID in the host
command. The SIz remote console software displays the LDEV ID and SIz pair status of all
T-VOLs associated with an S-VOL.
•
Reverse copy and quick restore operations can be performed on shared SIz/TCz pairs only
when the TCz pair is suspended.
Table 6 (page 30) describes the host pair status reporting for SIz volumes, TCz volumes, and
SIz/TCz shared volumes.
Table 6 Host Pair Status Reporting for SIz/TCz Shared Volumes
Pair Status Reported by Storage System Number of TCz Pairs Number of SIz S-VOLs
Simplex 0 0
SIz pair status 0 1
SIz pair status for the pair whose T-VOL has the lowest
LDEV ID 0 2 or more
TCz pair status 1 0
30 Interoperability with other Products and Functions