HP XP P9500 Storage - Manual (Page 64)

Pair status definitions
Both Remote Web Console and RAID Manager pair status names appear in the Pair Operation
window Status columns, except when the names are the same. When they are the same, the RAID
Manager status does not appear.
The following table shows both types of status names and their descriptions. In some cases, a
particular status has no exact parallel status in the other interface. This is noted.
When checking your pairs’ status, click File/Refresh to make sure the data is current. The P-VOL
access and S-VOL access columns in the following table indicate whether the volumes accept
read/write.
S-VOL access P-VOL access Description RAID Manager
status RWC status
Read/Write Read/Write This volume is not currently assigned to a Continuous
Access Synchronous pair. SMPL SMPL
Read Only Read/Write The initial copy operation for this pair is in progress.
This pair is not yet synchronized. COPY COPY
1
Read Only Read/Write PAIR PAIR • The pair is synchronized
•
Updates from the host to the P-VOL are duplicated in
the S-VOL.
Read only if
S-VOL write Read/Write SSUS, PSUS PSUS
(See also “Split
and Suspend
• The pair was split by a user. The pair is not
synchronized.
option is
disabled.
•
When you split the pair from the primary system, that
system changes the status of the P-VOL and S-VOL to
PSUS.
types”
(page 65)
.) Read/Write if
S-VOL write
• In PSUS status, updates to the S-VOL stop. The storage
system keeps track of updates to the P-VOL in order
to update the S-VOL when the pair is resynchronized.
RAID Manager also shows P-VOL status as PSUS.
option is
enabled.
•
When you split the pair from the secondary system,
that system changes the status of the S-VOL to PSUS.
The primary system detects this and changes P-VOL
status to PSUS.
RAID Manager shows the S-VOL status as SSUS.
•
When you release the pair from the secondary
system, that system changes the S-VOL status to SMPL.
The primary system detects this and changes the
P-VOL status to PSUS. The pair must be released from
the primary system in order to change P-VOL status
to SMPL.
•
RAID Manager PSUS status indicates that although
the paired status is retained, the user split the pair.
This status is only for P-VOL. While the pair is split,
the storage system keeps track of updates to P-VOL.
Read Only Read/Write. PSUE PSUE • If the primary system cannot keep the pair
synchronized for any reason, it changes the status
of the P-VOL and S-VOL (if possible) to PSUE.
(See also “Split
and Suspend
Read only if
P-VOL fence
level is Data.
types”
(page 65)
.)
• The pair is not synchronized.
Read only Read/Write The status of the Continuous Access Synchronous LUSE
pair is COPY or PAIR, but the status of one or more (No parallel RAID
Manager status) PDUB
individual LDEV pairs within the Continuous Access
Synchronous LUSE pair is SMPL or PSUS due to an error
condition.
64 Monitoring and maintenance