HP P9000 RAID Manager User Guide

command is issued. A read or write request from the host is allowed or rejected according to the
status.
Table 30 Snapshot Pairing Status
SecondaryPrimaryPairing StatusP-VOL Status
R/W disableR/W enabledUnpaired (Snapshot) volumeSMPL
( *1 )
R/W disableR/W enabledThe Snapshot available state allocated the resource.PAIR (PFUL)
R/W disableR/W enabledThe preparing state allocates the resource for the
Snapshot.
COPY
R/W disableR/W disableThe copying state from Snapshot to the primary volume
by using restore option.
RCPY
R/W enabledR/W enabledThe differences of the updated data of the primary and
secondary volume are controlled with copying on write.
PSUS (PFUS)
R/W disableR/W enabled ( *2 )“PSUS” status owing to an internal failure. The
differences of the updated data for the Snapshot volume
are not controlled.
PSUE (Error)
NOTE:
1
V-VOL unmapped to the S-VOL of a Snapshot will reply to a SCSI Inquiry, but Reading
and/or Writing is not allowed.
2
Reading and writing are enabled, as long as no failure occurs in the primary volume.
Pair status relationship to Snapshot commands
Table 31 (page 141) applies to a Snapshot context. It explains 1) what a pair status may be prior
to any RAID Manager command execution, 2) what the result would be after giving a RAID Manager
command, and 3) what the pair status may be if the RAID Manager command is Accepted.
Table 31 Pair status relationship to Snapshot commands
Snapshot Command-
pairresyncpairsplitpaircreate
Resync-S option-C option-E option-splitNo -splitPair Status
RejectedAcceptableRejectedRejectedAccepted*2 to
4
Accepted 2SMPL1
AcceptableAccepted 1Accepted*Accepted* 5Accepted*AcceptableCOPYRCPY2
AcceptableAccepted 1Accepted 4Accepted* 5Accepted*4AcceptablePAIR3
Accepted* 2Accepted 1AcceptableAccepted* 5AcceptableRejectedPSUS
(PFUS)
4
Accepted* 2Accepted 1RejectedAcceptableRejectedRejectedPSUE5
Accepted = A command is accepted and issued. Whether this command is executed or not depends on the microcode version
of the RAID storage system.
Snapshot operations 141