Hitachi TrueCopy (TM) for Mainframe User Guide: HP XP24000 Disk Array, HP XP20000 Disk Array (T5211-96014, May 2011)

Table 70 GDPS TrueCopy for Mainframe-Compatible XRC Matrix (continued)
XP12000/XP10000 Disk
Array
XP24000/XP20000 Disk
Array
IBM 3990-6EzSeries and S/390 Feature
Multiple supportedMultiple supportedMultiple supportedUtility volumes with Multi
Reader Support
#OW30183
Per IBM docPer IBM docPer IBM docSIM/error messages
ESCON or FICONESCON or FICONParallel or ESCONPrimary storage system
interface
Parallel ESCON or FICONParallel ESCON or FICONParallel or ESCONSecondary storage system
interface
CNT – Channelink or
UltraNet
CNT – Channelink or
UltraNet
YesChannel extender support
50% to 70 % available
cache.
(Variable along with the
specified value)
50% to 70% available
cache.
(Variable along with the
specified value)
50%Maximum sidefile size
60% to 80%
(Variable along with the
specified value.)
Retries issued at 40%
utilization, host interface
blocked at 50% utilization.
60% to 80%
(Variable along with the
specified value.)
Retries issued at 40%
utilization, host interface
blocked at 50% utilization.
60%Sidefile puncture %
NOTE: For further information on sidefile thresholds for Compatible XRC device blocking and
load balancing control, see “TrueCopy for Mainframe Load Balancing and Sidefile Management
and Control” (page 256).
Overview of PPRC Commands 225