HP StorageWorks XP24000 Continuous Access Journal Software User and Reference Guide, v01 (T5278-96001, June 2007)
Table 18 Host Pair Sta tus Reportin g for C o ntinuous Access Journal/B usiness Copy
Shared Volumes
Number of
Continuous Access
Journal Pairs
Number of
Business Copy
S-VOLs
Pair Status Reported by Storage System
0 0
Simplex
0
1
Business Copy pair status
0 2 or more
Business Copy pair status for the pair whose S-VOL has
the
lowest LDEV ID
1
0
Continuous Access Journal pair status
1 1
Continuous Access Journal pair status
1
2ormore
Continuous Access Journal pair status
Table 19 Data Currency of a Sh ared Con tinuous Access Journal/B usiness Copy Volu
me
Continuous
Access
Journal Pair
Status
Business Copy Pair Status
COPY (PD)
PAIR
COPY (SP) PSUS
COPY
(RS/RS-R)
PSUE
COPY
Not current Not current Not current CURRENT Not current Not current
PAIR Not current Not current Not current CURRENT Not current Not current
PSUS/PSUE
Not current CURRENT CURRENT CURRENT CURRENT Not current
Figure 11 on page 54 through Figure 14 on pag e 56 show the various Continuous Access
Journal/Business Copy configurations which share volumes.
• Continuous Access Journal/Business Copy configurations whic h share the Continuous Access
Journal primary data volume and Business Copy P -VOL
Figure 11 on p age 54 shows an example of a Continuous Access Journal primary data volume
which is also functioning as an Business Copy P-VOL. This configuration allows you to use
Business Copy for on-site data backup in case of a Continuous Access Journal failure, and to
use Continuous Access Journal to provide a remote backup of the Business Copy P-VOL i n case
of a
Business Copy failure.
Figure 11 Sh ared Continuous Access Journal Primar y Data Volume and Business
Copy P-VOL
• Continuous Access Journal/Business Copy configurations whic h share the Continuous Access
Journal secondary data volume a nd Bu siness Copy P-VOL
Figure 12 on page 55 shows an example of a Continuous Access Journal secondary data
volume which is also functioning as a Business Copy P-VOL. This configuration allows you to
54
Preparing for Continuous Access Journal Operations