HP XP Business Copy Software - Manual (Page 42)

42 ShadowImage for the XP1024/XP128/XP12000/XP10000/SVS 200
NOTE: This configuration does not allow SI390 and TC390 to copy at the same time. Add the SI390 pair
first, and then split the pair before creating the TC390 pair. You must suspend the TC390 pair to resync the
SI390 pair. The TC390 pair status cannot be changed when the SI390 pair is in the V-Split status.
You cannot distinguish the Split status from the V-Split status with the PPRC command. When you use the
SI390 and TC390 shared configuration shown in the following figure, you must either use the PPRC
command to perform the Steady Split operation or use the Command View XP management station or XP
Remote Web Console to confirm the pair statuses. You can perform the Steady Split operation by
specifying the CSUSPEND parameters (Byte 7 = ‘M’, Byte 8 = ‘P’, Byte 9 = ‘S’). For details about the PPRC
commands, refer to ” Using PPRC Commands for ShadowImage ” on page 76.
Figure 13 SI390 and TC390: shared T-VOL/M-VOL
Usually TCz and URz can share the volumes with SIz. However, in some cases, you cannot create SIz pairs
using the volume shared with TCz and URz. Figure 14 and Figure 15 show the examples of the cases that
you cannot create SIz pairs using the volume shared with TCz and URz.
NOTE: A primary volume (P-VOL) of Universal Replicator for z/OS® means a primary data volume of
Universal Replicator for z/OS®. A secondary volume (S-VOL) of Universal Replicator for z/OS® means a
secondary data volume of Universal Replicator for z/OS®.
The configuration shown in Figure 14 is an example of a volume functioning as both a URz S-VOL and a
TCz M-VOL. In this configuration, you cannot use this volume as the S-VOL of a SIz pair.
Figure 14 SIz, URz, and TCz: Shared S-VOL / S-VOL / M-VOL
The configuration shown in Figure 15 is an example of a volume functioning as both a TCz R-VOL and a
URz P-VOL. In this configuration, you cannot use this volume as the S-VOL of a SIz pair.