HP XP Business Copy Software - Manual (Page 33)

CAUTION:
•
When you share an XP Business Copy P-VOL with an XP Continuous Access Journal S-VOL as
shown in
Figure 15 (page 32) , the write operation to the XP Continuous Access Journal P-VOL
take extra time. Especially, when the XP Business Copy pair is in the PSUS(SP) status, the write
operation to the XP Continuous Access Journal P-VOL may take extra time according to the
time for copying process of the XP Business Copy pair.
•
If the journal volume size is small, the XP Continuous Access Journal pair may be suspended
by failure because of the shortage of the capacity of its journal volume.
•
Any request to split all XP Continuous Access pairs in one consistency group will be accepted
only when the corresponding XP Continuous Access Journal pairs are in PAIR, PSUS, or PSUE
status. If any of the XP Continuous Access Journal pairs is in another status, the status of the
XP Business Copy pairs in the consistency group will be unchanged.
The configuration shown in Figure 16 (page 33) illustrates a volume that is functioning as both an
XP Continuous Access Journal P-VOL and an XP Business Copy P-VOL, while the S-VOL of the same
XP Continuous Access Journal pair is also functioning as the P-VOL of another XP Business Copy
pair. This configuration allows:
•
On-site backup copies of XP Continuous Access Journal P-VOLs and S-VOLs
•
Remote backup of XP Business Copy P-VOLs
Figure 16 Shared Volumes of XP Business Copy and XP Continuous Access Journal: P-VOL/P-VOL
and P-VOL/S-VOL
Figure 17 (page 34) illustrates a volume that is functioning as both an XP Business Copy S-VOL
and an XP Continuous Access Journal P-VOL, which allows you to use XP Continuous Access Journal
to provide remote copies of XP Business Copy S-VOLs.
XP Continuous Access Journal 33