HP StorageWorks XP Remote Web Console Software - Manual (Page 46)

Status Description Host Status S-VOL Access T-VOL Access
Resync
When a split pair
is re-synchronized
in normal mode,
only the S-VOL
differential data
is copied to the
T-VOL. When a
suspended pair is
re-synchronized,
the entire S-VOL
is copied to the
T-VOL. No update
copy operations are
performed during
resync operation.
S-VOL = PPRI-PNDG
T-VOL = PSEC-
PNDG
Read/write
enabled
Read/write.
Read/write access
enabled for
HRX volumes.
Avoid read/write
operations.
Resync-R
When a split pair
is reverse copy, the
XP12000 storage
system copies
only the T-VOL
differential data
to the S-VOL. The
reverse copy cannot
be performed on
suspended pairs.
No update copy
operations are
performed during
reverse copy or
quick restore.
S-VOL = PPRI-PNDG
T-VOL = PSEC-
PNDG
Read/write-
disabled
Read/write.
Read/write access
enabled for
HRX volumes.
Avoid read/write
operations.
Suspend
The XP12000
storage system does
not perform update
copy operations to
a suspended T-VOL.
The XP12000
storage system
marks the entire
S-VOL track map as
differential data, so
the entire S-VOL is
copied to the T-VOL
when the pair is
resumed. Use
resync command
to resume a
suspended pair.
Reverse copy and
quick restore cannot
be used to resume
suspended pairs.
S-VOL = PPRI-SUSP
T-VOL = PSEC-SUSP
Read/write-
enabled
Read/write-
disabled.
Read/write access
enabled for
HRX volumes.
Avoid read/write
operations.
Cautions on Switching Off Power Supply
If you must switch off the power supply of the XP12000 storage system during Siz operations, make sure to:
• Complete copying for the Siz pair in the SP-pend or V-split status to change the pair status from
SP-pend or V-split to split, and then switch off the power supply.
46 Overview of Hitachi ShadowImage for z/OS Operations