HP StorageWorks XP24000/XP20000 Continuous Access Software User Guide (T5278-96046, May 2011)

Table 15 Host Pair Status Reporting for XP Continuous Access/XP Business Copy Shared Volumes
Pair Status Reported by Storage SystemNumber of
XP Business
Copy S-VOLs
Number of
XP Continuous
Access Pairs
Simplex00
XP Business Copy pair status10
XP Business Copy pair status for the pair whose S-VOL has the
lowest LDEV ID
2 or more0
XP Continuous Access pair status01
XP Continuous Access pair status11
XP Continuous Access pair status2 or more1
Table 16 Data Currency of a Shared XP Continuous Access/XP Business Copy Volume
XP Business Copy Pair StatusXP Continuous
Access Pair Status
PSUECOPY(RS/RS-R)PSUSCOPY(SP)PAIRCOPY (PD)
Not currentNot currentCURRENTNot currentNot currentNot currentCOPY
Not currentNot currentCURRENTNot currentNot currentNot currentPAIR
Not currentCURRENTCURRENTCURRENTCURRENTNot currentPSUS/PSUE
Figure 7 (page 42) through Figure 10 (page 44) show the various XP Continuous Access/XP
Business Copy configurations that share volumes. XP Continuous Access supports synchronous and
asynchronous operations for shared XP Continuous Access/XP Business Copy volumes.
• Figure 7 (page 42) shows an example of an XP Continuous Access P-VOL that also functions
as an XP Business Copy P-VOL. This configuration allows you to use XP Business Copy for
on-site data backup in case of an XP Continuous Access failure, and to use XP Continuous
Access to provide remote backup of the XP Business Copy P-VOL in case of an XP Business
Copy failure.
Figure 7 Shared XP Continuous Access P-VOL/XP Business Copy P-VOL
• Figure 8 (page 42) shows an example of an XP Continuous Access S-VOL that also functions
as an XP Business Copy P-VOL. This configuration allows you to use XP Business Copy to
provide multiple backup copies of a single XP Continuous Access P-VOL.
Figure 8 Shared XP Continuous Access S-VOL/XP Business Copy P-VOL
42 About XP Continuous Access Operations