HP StorageWorks XP Remote Web Console Software - Manual (Page 56)

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Volumes that cannot be shared:
The Version 2 and TrueCopy for Mainframe shared configuration is different from the IBM
FlashCopy and PPRC shared configuration. For Version 2 and TrueCopy for Mainframe, you
cannot create the following pairs (see
(page 56) ):
◦ A TrueCopy for Mainframe pair that includes a volume functioning as both a Version 2
T-VOL and a TrueCopy for Mainframe R-VOL.
Figure 31 Version 2 and TrueCopy for Mainframe: Non-sharable Combinations
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You must do the following when you share a Version 2 S-VOL and a volume of a TrueCopy
for Mainframe pair, or when you use the Remote FlashCopy function:
◦ Specify only one Version 2 T-VOL if the Version 2 S-VOL is shared with a TrueCopy for
Mainframe R-VOL.
◦ Specify a volume with the same emulation type and same capacity as the Version 2 S-VOL
to the TrueCopy for Mainframe S-VOL if the Version 2 S-VOL is shared with the TrueCopy
for Mainframe R-VOL.
◦ Set the local mode (Mode 20 and Mode 190) to ON at the RCU.
For details on how to set the local mode to ON, call HP technical support.
◦ Use the volume whose emulation type is shown in (page 63) .
When you share a Version 2 S-VOL and a volume of a TrueCopy for Mainframe pair, the status
of the TrueCopy Asynchronous for Mainframe pair must be either duplex, pending duplex, or
suspend. However, if the shared TrueCopy for Mainframe volume is an R-VOL, there may be cases
in which you cannot create the Version 2 relationship. (see
(page 56) for detailed information.)
Table 29 Volume Share of a Version 2 S-VOL and TrueCopy for Mainframe
Status of TrueCopy for Mainframe Pair Shared TrueCopy for Mainframe Pair Volume
Suspend Pending Duplex Duplex
Yes Yes
1
Yes M-VOL TrueCopy Synchronous for Mainframe
Yes No
3
Yes R-VOL
2
Yes Yes
1
Yes M-VOL TrueCopy Asynchronous for
Mainframe
Yes No 3 No 3 R-VOL
56 About Version 2 Operations