HP XP P9000 Continuous Access Journal User Guide

S-VOL accessP-VOL
access
DescriptionRAID Manager statusRWC status
Read OnlyRead/Write
4
The pair is synchronized. Updates to the P-VOL are
duplicated on the S-VOL.
PAIRPAIR
Read OnlyRead/Write
4
If data in the journal volume exceeds the threshold (80 %),
pair status changes to PFUL. The pair is not suspended; the
copy operation continues.
PFULRWC
displays this
status as PAIR
If the journal option, Inflow Control, is set to Yes when status
changes to PFUL, host I/O is delayed because update I/O
to the journal volume is delayed.
Read Only,
unless write
Read/Write
4
The pair has been split by the user and the P-VOL and S-VOL
are no longer synchronized.
SSUSPSUS
option is
enabled.
The primary and secondary systems keep track of journal
data discarded during the split operation.
When the operation is performed on the primary system,
the status of both the P-VOL and S-VOL changes to PSUS.
When the operation is performed on the secondary
system, the status of the S-VOL changes to PSUS; the
primary system detects this and changes P-VOL status to
PSUS.
SSUS is the S-VOL’s split status name.
See also “PSUS types and behaviors” (page 69).
Read OnlyRWC:
Read/Write
4
The pair is suspended by the system due to an error; it is
not synchronized.
PSUEPSUE
RAID
The primary and secondary systems keep track of journal
data discarded during the suspension operation.
Manager:
Read/Write
4
The primary system keeps track of P-VOL tracks that are
updated while the pair is suspended.
if no error
in P-VOL
When a Cnt Ac-J suspension condition is detected, the
primary system changes P-VOL and S-VOL status to PSUE.
If the secondary system detects the condition, it changes
the S-VOL status to PSUE; the primary system detects this
and changes P-VOL status to PSUE.
See also “PSUS types and behaviors” (page 69).
Read OnlyRead/Write
4
The pair is not synchronized and in transition from the PAIR
or COPY status to PSUS or PSUE status.
(No parallel RAID
Manager status)
Suspending
Read OnlyRead/Write
4
The pair relationship is being deleted. When the operation
completes, status changes to SMPL.
(No parallel RAID
Manager status)
Deleting
(releasing)
Read Only
2
Read/Write
1
(No parallel RAID
Manager status)
HOLD
The pair or command devices are ready for the delta
resync operation. Incoming write data for the Cnt Ac-S
S-VOL is stored in the master journal volume.
Operations allowed:
- Delta resync
- Pair-delete
- Change pair options
-Read/Write
1
Pair status is changing to HOLD so that the delta resync pair
can be created.
(No parallel RAID
Manager status)
HOLDING
3
Operations allowed on pairs in HOLDING status:
Delta resync operation
Pair release
Change pair options
Monitoring pair activity and status 67