HP XP Array Manager Software - Manual (Page 11)

• If a remote copy pair is suspended during a TrueCopy for Mainframe or Universal Replicator for
Mainframe copy operation and you want to enable the R-VOL read option on the RCU (mode 20),
you must ensure that the access attribute of the R-VOL is Read/Write before you enable the R-VOL
read option.
If the access attribute of the R-VOL is Read-Only, mode 20 will be disabled. Also, operations such
as REFORMAT and REFVTOC cannot be performed for overwriting volume serial numbers.
• If a logical volume has the Protect attribute, the logical volume can neither be used as an M-VOL
nor an R-VOL.
ShadowImage for Mainframe and HP StorageWorks XP for FlashCopy Mirroring
Software
If a logical volume has the Protect attribute, the logical volume cannot be used as a source volume
(S-VOL) or as a target volume (T-VOL) for ShadowImage for Mainframe, Compatible FlashCopy, or
Compatible FlashCopy V2.
XP24000/XP20000 Volume Retention Manager User's Guide 11