HP StorageWorks XP24000 Continuous Access Software User and Reference Guide, v01 (T5278-96002, June 2007)

Figure 4 on page 37 through Figure 7 on page 38 show the various Continuous Access/Business
Copy configurations which share volumes. Continuous Access sup ports synchronous an d asynchronous
operations for shared Continuous Access/Business Copy volumes.
•
Figure 4 on pa ge 37 shows an example of a Continuous Access P-VOL which is also functioning
as a Business Copy P-VOL. This configuration allows you to use Business Copy for on-s ite data
backup in case of a Continuous Access failure, and to use Continuous Access to provide remote
backup of the Business Copy P-VOL in case of a Business Copy failure.
Figure 4SharedContinuousAccessP-VOL/BusinessCopyP-VOL
•
Figure 5 on page 37 shows an example of a Continuous Access S-VOL which is also functioning
as aBusinessCopyP-VOL.Thisconfiguration allows you to use Business Copy to provide multiple
backup copies of a single Continuous Access P-V OL.
Figure 5 Shared Con tinuous Access S-VOL/Business Copy P-VOL
•
Figure 6
on page 37 combines the confi gurations shown in Figure 4 on page 37 and
Figure 5 on page 37. Within a single Continuous Access pair, the P-VOL and S -VOL are both
functioning as Business Copy P-VOLs, providing multiple copies a t the primary and remote sites.
Figur
e 6
Shared Continuous Access/Business Copy P-VOL with Shared Continuous
Access S-VOL/Business Copy P-VOL
•
Figur
e7 on page 38 shows an example of a Business Copy S-VOL which is also used as a
Cont
inuous Access P-VOL.
Caution: This configuration requires that the Business Copy pair be
esta
blished
in duplex mode (PAIR) and then split (PSUS) before the Continuous Access pair
is
created.
XP24000ContinuousAccessSoftwareUserand ReferenceGuide
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