HP Surestore E Disk Array XP256 HP XP P9000 External Storage Access Manager Us - Page 30

Pair status values, File/Refresh, Pair Operation, Detailed Information

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Pair status values When checking pair status in RWC, click File/Refresh to verify that the data is current. In RWC, the pair status is shown in the [pair status in Remote Web Console/pair status in RAID Manager] format. If the pair status name in RWC and the pair status name in RAID Manager are the same, the pair status name in RAID Manager is not shown. The following table lists ESAM pair status and whether the volumes can be accessed. The accessibility to P-VOL or S-VOL depends on the pair status and VOL Access. You can see VOL Access in the Pair Operation window or the Detailed Information dialog box. Pair Status -PVOL SMPL S-VOL SMPL COPY COPY PAIR PAIR SSUS PSUS PSUS (see "Suspend types (PSUE PSUS VOL Access Description Access to P-VOL S-VOL P-VOL S-VOL Blank Blank The volume is not assigned to an ESAM pair. Read/write Read/write Access Blank (No Lock) The initial copy operation for this pair Read/write is in progress. This pair is not yet synchronized. Not accessible Blank Blank The pair is synchronized. The system Read/write reads and writes updates from the host to the P-VOL and duplicates them in the S-VOL. Read/write* Blank Access (Lock) The I/O operation to S-VOL or the Not swapping and suspending operation Accessible was successful. If the pair status of the S-VOL is SSWS, the S-VOL is accessible. The most recent data is on the S-VOL. Read/write Blank Blank Pair failed to get the lock at swapping Not and suspended command accessible (pairsplit -RS command). Status of the SSUS was forcibly changed. If the pair status of the S-VOL is SSWS, the S-VOL is accessible. Data on the S-VOL might be old. Read/write Blank Access (Lock) After the status of the S-VOL was Not changed to SSWS, you ran accessible pairsplit-RB command to rollback. Suspend the pair and resynchronize. After a rollback, do not access the P-VOL or S-VOL until resynchronization is finished. Data on P-VOL might be old. Not accessible Blank Blank After the status of the S-VOL was Not forcibly changed to SSWS, you ran accessible the pairsplit-RB command to rollback. Suspend the pair and resynchronize. After a rollback, do not access the P-VOL or S-VOL until resynchronization is finished. Data on P-VOL might be old. Not accessible Access (Lock) Blank This ESAM pair is not synchronized because the user has split the pair (pairsplit-r command). The P-VOL data is up-to-date. Read/write. Not accessible. Read-only can be set with the option pairsplit-r) 30 Working with volume pairs

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Pair status values
When checking pair status in RWC, click
File/Refresh
to verify that the data is current.
In RWC, the pair status is shown in the
[pair status in Remote Web Console/pair
status in RAID Manager]
format. If the pair status name in RWC and the pair status name
in RAID Manager are the same, the pair status name in RAID Manager is not shown.
The following table lists ESAM pair status and whether the volumes can be accessed. The
accessibility to P-VOL or S-VOL depends on the pair status and VOL Access. You can see VOL
Access in the
Pair Operation
window or the
Detailed Information
dialog box.
Access
to
Description
VOL Access
Pair Status
S-VOL
P-VOL
S-VOL
P-VOL
S-VOL
-PVOL
Read/write
Read/write
The volume is not assigned to an
ESAM pair.
Blank
Blank
SMPL
SMPL
Not accessible
Read/write
The initial copy operation for this pair
is in progress. This pair is not yet
synchronized.
Blank
Access
(No Lock)
COPY
COPY
Read/write*
Read/write
The pair is synchronized. The system
reads and writes updates from the
Blank
Blank
PAIR
PAIR
host to the P-VOL and duplicates them
in the S-VOL.
Read/write
Not
Accessible
The I/O operation to S-VOL or the
swapping and suspending operation
Access (Lock)
Blank
SSUS
was successful. If the pair status of the
S-VOL is SSWS, the S-VOL is
accessible. The most recent data is on
the S-VOL.
Read/write
Not
accessible
Pair failed to get the lock at swapping
and suspended command
Blank
Blank
(
pairsplit -RS
command). Status
of the SSUS was forcibly changed. If
the pair status of the S-VOL is SSWS,
the S-VOL is accessible. Data on the
S-VOL might be old.
Not accessible
Not
accessible
After the status of the S-VOL was
changed to SSWS, you ran
Access (Lock)
Blank
PSUS
pairsplit-RB
command to
rollback. Suspend the pair and
resynchronize. After a rollback, do
not access the P-VOL or S-VOL until
resynchronization is finished. Data on
P-VOL might be old.
Not accessible
Not
accessible
After the status of the S-VOL was
forcibly changed to SSWS, you ran
Blank
Blank
the
pairsplit-RB
command to
rollback. Suspend the pair and
resynchronize. After a rollback, do
not access the P-VOL or S-VOL until
resynchronization is finished. Data on
P-VOL might be old.
Not accessible.
Read/write.
Read-only can
This ESAM pair is not synchronized
because the user has split the pair
Blank
Access
(Lock)
PSUS
PSUS
(see
be set with
(
pairsplit-r
command). The
P-VOL data is up-to-date.
“Suspend
types (PSUE
the option
pairsplit-r)
30
Working with volume pairs