HP XP P9000 External Storage Access Manager User Guide (AV400-96607, January 2014)

Access
to
DescriptionVOL AccessPair Status
S-VOLP-VOLS-VOLP-VOLS-VOL-PVOL
Not accessibleNot
accessible
After the status of the S-VOL was
forcibly changed to SSWS, you ran
BlankBlankstatus)”
(page 32)
the pairsplit-RB command to
Not accessibleNot
accessible
Access (Lock)Blank
rollback. After a rollback, do not
access the P-VOL or S-VOL until
resynchronization is finished. Data on
P-VOL might be old.
Read/writeNot
accessible
The ESAM pair is not synchronized
because a failover has occurred. The
data on S-VOL is the latest.
Access (Lock)Blank
SSWS
Read/WriteNot
accessible
The user has performed a swap and
suspend operation (pairsplit-RS). Data
on S-VOL may be old.
BlankBlank
Read/WriteRead/WriteAfter the user performed a suspend
operation (pairsplit -r), the user
BlankAccess
(Lock)
performed swap and suspend
operations (pairsplit-RS). Data on
S-VOL may be old.
Read/WriteRead/WriteThe user has released the pair from
RCU (pairsplit -S). This ESAM pair is
not synchronized.
BlankAccess
(Lock)
SMPL
Not accessibleRead/WriteThis ESAM pair is not synchronized
because the MCU suspended the
BlankAccess (No
Lock)
PSUEPSUE
(see
ESAM pair with an error. Data in the
P-VOL is up to date.
BlankAccess
(Lock)
PAIR
“Suspend
types (PSUE
status)”
(page 32)
Read/WriteRead/WriteAfter the pair was suspended by a
failure, the user performed the
BlankAccess (No
Lock)
SSWS
swapping and suspending command
BlankAccess
(Lock)
(pairsplit -RS). If the pair status
of the S-VOL is SSWS, the S-VOL is
accessible. Data on the S-VOL might
be old.
Not accessibleNot
accessible
After the ESAM pair was suspended
due to an error, the user performed
BlankAccess (No
Lock)
PSUS
the swapping and suspending
BlankAccess
(Lock)
operation (pairsplit-RS) and performed
the rollback operation (pairsplit -RB).
After the rollback, do not access either
the P-VOL or the S-VOL until the resync
operation is finished. The data on the
P-VOL might be old.
Read Only (Not
accessible in
Read/writeThe ESAM pair consists of LUSE
volumes. The status of the pair is
BlankAccess
(Lock)
PDUBPDUB
case of COPY or
PSUE)
COPY or PAIR. The status of at least
one LUSE volumes is SMPL or PSUE.
* If an S-VOL in PAIR status accepts write I/O, the storage system assumes that a failover occurred. Then the S-VOL changes to
SSWS status and the P-VOL usually changes to the PSUS status.
Pair status values 31