Hitachi ShadowImage for IBM z/OS User"s Guide (T5213-96002, June 2007)

2-32 About ShadowImage™ for IBM
®
z/OS
®
Operations
Hitachi ShadowImage™ for IBM
®
z/OS
®
User’s Guide
TCz pair R-VOL
URz pair P-VOL
TCz pair M-VOL
Storage system 2 Storage system 1
TrueCo
py
for z/OS
ShadowImage for
z/OS
URz pair S-VOL
Universal Replicator for z/OS
Storage system 3
Cannot create
a pair
SIz
p
air T-VOL
Legend:
SIz S-VOL:
SIz T-VOL:
URz P-VOL:
URz S-VOL:
TCz M-VOL:
TCz R-VOL:
SIz source volume
SIz target volume
URz primary data volume
URz secondary data volume
TCz main volume
TCz remote volume
Figure 2-19 SIz, TCz, and URz: Shared S-VOL / R-VOL / P-VOL
Concurrent Copy
If SIz S-VOLs and Concurrent Copy source volume (original data) share the
same volumes, you cannot perform the reverse copy or quick restore
operation for those volumes. Do not use Concurrent Copy T-VOLs (copied
data) for SIz volumes.