HP StorageWorks XP24000 Continuous Access Software User and Reference Guide, v01 (T5278-96002, June 2007)

Table 24 Analyzin g the Currency of Contin uous A ccess Synchronous S-VOLs
Status of S-VOL
Fence Level
Currency of S-VOL
SMPL
Data
Status
Never
Inconsistent. This S-VOL does not belong to a Continuous Access
pair. (
Note: Even if you established a Continuous Access pair for
this
volume, you must regard this volume as inconsistent.)
COPY
Data
Status
Never
Inconsistent. This S-VOL is not synchronized because not all
tracks have been c opied from the P-VOL yet. This S-VOL must be
initialized (or copied from the P-VOL a t a later time).
PAIR
Data
Status
Current. This S-VOL is synchronized with its P-VOL.
Never
Needs to be analyzed. This S-VOL requires further analysis to
determine its level of currency.
PSUE −
initial copy failed
Data
Status
Never
Inconsistent. This S-VOL is not synchronized because not all
tracks have been c opied from the P-VOL yet. This S-VOL must be
initialized (or copied from the P-VOL a t a later time).
PSUS −
S-VOL by
operator
Data
Status
Never
Suspect. This S-VOL is not synchronized with its P-VOL if any write
I/Os
were issued to the P-VOL after the pair was split. This pair
should be restarted using the Entire Volume initial copy option,
but the None op
tion canbeusedifyou aresurethatnodataon
the
P-VOL cha
nged.
PSUS/PSUE -
all other types
Data
Current. This S-VOL is synchronized with its P-VOL.
Status
Never
Suspect. This S-VOL is not synchronized with its P-VOL if any
writeI/Os wereissuedtothe P-VOLafter thepairwas splitor
suspended. Restore the consistency of this S-VOL and update it, if
required. The time of suspension indicated on the Last Updated
field of the Detailed Information dialog box (MCU SVP time) will
help to
determine the last time this S-VOL was up dated.
Analyzing the Consistency of Continuous Access Asynchronous S-VOLs
Table 25 on page 132 shows how to determine the consistency of a Continuous Access Asynchronous
S-VOL b ased on its pair status and consistency status. For Continuous Access Asynchronous S-VOLs with
aconsistency status of LU, the volume is not consistent with other volumes in the same group, and further
analysis will be required to determine the currency of each of these S-VOLs. The currency of these S-VOLs
can
be determined by using the sense information transferred via host failover software or by comparing
the
contents of the S-VOL with other files which are confirmed to be current (for example, database log
files). These S-VOLs should be recovered using the files which are confirmed to be current.
Note: Actual data recovery must be done using recovery point data in the d a tabase redo log.
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