Filter
Top Products
3-26 Chapter 3 Preparing for Universal Replicator z/OS Operations
Hitachi Universal Replicator for IBM /OS User’s Guide
Table 3-12 Host Pair Status Reporting for URz/SIz Shared Volumes
Number of
URz pairs
Number of SIz
T-VOLs
Pair status reported by USP V
0 0 Simplex
0 1 SIz pair status
0 2 or more SIz pair status for the pair whose S-VOL has the lowest LDEV ID
1 0 URz pair status
1 1 URz pair status
1 2 or more URz pair status
Table 3-13 Data Currency of a Shared URz/SIz Volume
SIz pair status
URz pair
status
Pending
Duplex
Duplex Split-
Pending
Split Resync Suspende
d
Pending
Duplex
Not current Not current Not current CURRENT Not current
Not
current
Duplex Not current Not current Not current CURRENT Not current
Not
current
Suspended Not current CURRENT CURRENT CURRENT CURRENT
Not
current
Figure 3-8 through Figure 3-11 show the various URz/SIz configurations which
share volumes.
• URz/SIz configurations which share the URz primary data volume and SIz
S-VOL
Figure 3-8 shows an example of a URz primary data volume which is also
functioning as a SIz S-VOL. This configuration allows you to use SIz for on-
site data backup in case of a URz failure, and to use URz to provide remote
backup of the SIz S-VOL in case of a SIz failure.
URz
SIz
Primary
data
volume
S-VOL
MCU
RCU
Secondary
data volume
Master journal
volume
Restore journal
volume
T-VOL
Figure 3-8 Shared URz primary data volume and SIz S-VOL