HP XP RAID Manager Software - Manual (Page 147)

Table 35 Pair status relationship to Snapshot commands
Snapshot Command -
pairresync pairsplit paircreate
Resync -S option -C option -E option -split No -split Pair Status
Rejected Acceptable Rejected Rejected Accepted*2 to
4 Accepted 2 SMPL 1
Acceptable Accepted 1 Accepted* Accepted* 5 Accepted* Acceptable COPYRCPY 2
Acceptable Accepted 1 Accepted 4 Accepted* 5 Accepted*4 Acceptable PAIR 3
Accepted* 2 Accepted 1 Acceptable Accepted* 5 Acceptable Rejected PSUS
(PFUS) 4
Accepted* 2 Accepted 1 Rejected Acceptable Rejected Rejected PSUE 5
Accepted = A command is accepted and issued. Whether this command is executed or not depends on the microcode version
of the RAID storage system.
NOTE:
•
Pairsplit (“simplex -S”) of a Fast Snap or Snapshot volume is returned without verification of
the state transition that waits until SMPL state. In a SMPL state, note that the volume that was
an S-VOL becomes R/W disabled and data is discarded.
•
In the “PSUE” state, Snapshot does not manage differential data between the primary volume
and secondary volume.
Controlling Auto LUN
Auto LUN, including external volumes, must be controlled using CLI in a Data Lifecycle Management
(DLCM) solution. It is possible to support volume migration (Auto LUN function) and the external
connection by operating the current Business Copy and VDEV mapping of the external connection.
Also, it is important to consider the support of Auto LUN on the compatibility based on the current
CLI interface, because RAID Manager is supporting Business Copy and the external connection.
For this purpose, RAID Manager makes the CLI interface that works by minimum compatible of the
application by specifying the COPY mode for Auto LUN to the CLI of RAID Manager.
Specifications for Auto LUN
RAID Manager must be mapped to the port for pooling of RAID in order to control the volume of
the external connection. Therefore, the external volume needs to be mapped previously to the RAID
port without connecting to the host. Following is an execution example of the volume migration
executed for LDEV#18.
Controlling Auto LUN 147