HP P9000 for Compatible FlashCopy Mirroring User Guide (AV400-96388, October 2011)

2 Preparing for Compatible FlashCopy operations
This chapter describes the requirements and preparations you should know before the Compatible
FlashCopy operations.
Requirements of Compatible FlashCopy
You can establish a Compatible FlashCopy relationship for simplex volumes, and for non-simplex
BC Z S-VOLs or T-VOLs.
The following table describes other requirements on using Compatible FlashCopy.
Table 16 Requirements
RequirementItem
Compatible FlashCopy SECompatibale FlashcopyProgram
product
I-2107I-2105 and I-2107Controller
emulation
type
T-VOL must be TSE-VOL.The controller emulation type of an S-VOL and a
T-VOL must be the same.
Compatible FlashCopy can use the volume whose
LDKC:CU:LDEV (LDKC: control unit
Compatible FlashCopy can use the volume whose
LDKC:CU:LDEV (LDKC: control unit image: logical
device ID) is between 00:00:00 and 00:FE:FF.
Available
volume
image: logical device ID) is between
00:00:00 and 00:FE:FF.
The following table lists the emulation types supported by Compatible FlashCopy and the condition
for the combination of S-VOL and T-VOL.
Table 17 Emulation Types supported by compatible FlashCopy
Emulation type of T-VOLEmulation type
of S-VOL
3390-A3390-M3390-L3390-93390-33390-23390-13380-3
Not OKNGNGNGNGNGNGOK3380-3
OKOKOKOKOKOKOKNo3390-3
OKOKOKOKOKOKOKNo3390-9
OKOKOKOKOKOKOKNo3390-L
OKOKOKOKOKOKOKNo3390-M
If the emulation type is started with 3390, you can specify the volumes of different emulation types
for S-VOL and T-VOL. However, you cannot establish a relationship using a 3380-3 volume and
a volume whose emulation type is started with 3390. In case of 3380-3 volume, you must specify
3380-3 volumes both for S-VOL and T-VOL.
The specified extent must be within the range of the user cylinders in each volume.
In Compatible FlashCopy SE, emulation type of T-VOL is only 3390-A (TSE-VOL).
Calculating the maximum number of Compatible FlashCopy relationships
Compatible FlashCopy can establish up to 1,048,575 relationships. However, Compatible
FlashCopy may not be able to establish up to 1,048,575 relationships depending on the number
of resources required for the copy operation that vary according to the attributes (emulation type,
capacity, size of the data that is copied, position of the extent) of the volumes, and extents used
for establishing the relationships.
Requirements of Compatible FlashCopy 29