HP XP20000XP24000 Disk Array - Manual (Page 17)

TrueCopy for Mainframe: If the status of a TrueCopy for Mainframe volume is suspended or
simplex, the volume can be used as a source volume. If not, the volume cannot be used as a
source volume. When a TrueCopy for Mainframe volume is deleted from the MCU, the status of
both volumes changes to simplex, and both volumes can be used as source volumes. When a
TrueCopy for Mainframe volume is deleted from the RCU, the status of the M-VOL changes to
suspended and the status of the R-VOL changes to simplex, and both volumes can be used as
source volumes. Note that if you specify a TrueCopy for Mainframe volume as a source volume,
you cannot specify an external volume as the target volume.
HP StorageWorks XP Continuous Access Software: If the status of a Continuous Access volume is
PSUS, PSUE, or SMPL, the volume can be used as a source volume. If not, the volume cannot be
used as a source volume. When a Continuous Access pair is deleted from the MCU, the status
of both volumes changes to SMPL, and both volumes can be used as source volumes. When a
Continuous Access pair is deleted from the RCU, the status of the P-VOL changes to PSUS and the
status of the S-VOL changes to SMPL, and both volumes can be used as source volumes. Note
that if you specify a Continuous Access volume as a source volume, you cannot specify an
external volume as the target volume.
Universal Replicator for Mainframe: If the status of a Universal Replicator for Mainframe volume
is Pending duplex or Duplex, the volume cannot be used as a source volume. Note that if you
specify a Universal Replicator for Mainframe volume as a source volume, you cannot specify an
external volume as the target volume.
Continuous Access Journal: If the status of a Continuous Access Journal volume is COPY or PAIR,
the volume cannot be used as a source volume. Note that if you specify a Continuous Access
Journal volume as a source volume, you cannot specify an external volume as the target volume.
ShadowImage for Mainframe and HP StorageWorks XP Business Copy Software: Usage of
ShadowImage for Mainframe and Business Copy volumes as a source volume depends on the
status and cascade configuration of the volume as described below.
• The following volumes cannot be used as a source volume:
• ShadowImage for Mainframe volumes whose status is SP-Pend or V-Split.
• Business Copy volumes whose status is COPY(SP) or PSUS(SP).
• Table 2 on page 17 specifies which non-cascade volumes can be used as source volumes.
Table 2 Non-Cascade Volumes and Auto LUN Source Volumes
Pair Configuration
[Status ≠ COPY(SP) or PSUS(SP) Can P-VOL be used
as a source volume?
Can S-VOLs be used
as source volumes?
Ratio of P-VOL to S-VOLs is 1:1 Yes Yes
Ratio of P-VOL to S-VOLs is 1:2 Yes Yes
Ratio of P-VOL to S-VOLs is 1:3 No Yes
• Table 3 on page 17 specifies which cascade volumes can be used as source volumes.
Table 3 Cascade Volumes and Auto LUN Source Volumes
Pair Configuration
[Status ≠ COPY(SP) or PSUS(SP)] Can P-VOL be used
as a source volume?
Can S-VOLs be used
as source volumes?
L1 pair, ratio of P-VOL to S-VOLs is 1:1 Yes Yes
L1 pair, ratio of P-VOL to S-VOLs is 1:2 Yes Yes
L1 pair, ratio of P-VOL to S-VOLs is 1:3 No Yes
L2 pair, ratio of P-VOL to S-VOLs is 1:1 Yes No
L2 pair, ratio of P-VOL to S-VOLs is 1:2 No No
Caution: If any of the following operations is performed on an Auto LUN source volume during
migration, the volume migration process stops:
• CC
operation.
XP24000 Auto LUN Software User's Guide 17