Hitachi TrueCopy for z/OS (T1711-96009, June 2006)

62 TrueCopy for the XP1024/XP128/XP12000/XP10000
• SANtinel - S/390. SANtinel operations do not affect TC390 operations. Secure volumes can be
assigned to TC390 pairs, and TC390 volumes can be assigned to secure ports and/or groups for
SANtinel operations.
NOTE: TC390 R-VOLs cannot be accessed by any host except when the pair is split.
• HXRC. The XP1024/XP128/XP12000/XP10000 is functionally compatible with the IBM Extended
Remote Copy (XRC) function. See Table 16 on page 62.
• SI390. SI390 volumes can be assigned to TC390 pairs and TC390 volumes can be assigned to SI390
pairs. For information on TC390 and SI390 shared volume configurations, see ”Combining TrueCopy
with Other Data Management Operations” on page 58. This configuration requires at least one
external ESCON or fibre cable loop.
NOTE: When TC390 and SI390 are both active on the same
XP1024/XP128/XP12000/XP10000, TC390 cannot be used to copy within that disk array. SI390
is recommended for disk array-internal copy. If SI390 is not active, TC390 Synchronous supports
intra-disk array copy and requires at least one external cable loop.
• Prioritized Port Control. The initiator ports in the MCU do not support the Prioritized Port/WWN
Control option because they are dedicated for TC390 operations.
NOTE: When TC390 and CA coexist in the same XP1024/XP128/XP12000/XP10000, each
consistency group must contain either TC390A pairs or CA Asynchronous pairs (not both), and
TC390A and CA Asynchronous share the same cache sidefile area.
Combining TC390 and HXRC. The following table shows the requirements and restrictions for combining
TC390 and HXRC operations on the same XP1024/XP128/XP12000/XP10000 device.
Combining TrueCopy and ShadowImage
ShadowImage volumes can be assigned to TCz pairs, and TCz volumes can be assigned to ShadowImage
pairs. For further information on ShadowImage for z/OS®, please refer to the ShadowImage User's
Guide.
NOTE: When TCz and ShadowImage are both active on the same Hitachi TagmaStore™ USP subsystem,
TCz cannot be used to copy within that subsystem. ShadowImage is recommended for subsystem-internal
copy. If ShadowImage is not active, TCz Synchronous supports intra-subsystem copy and requires at least
one external ESCON® cable loop or fibre cable loop.
Table 16 Requirements and restrictions for combining TrueCopy and HXRC
Combination
allowed?
TC390
M-VOL
TC390
R-VOL
HXRC
Primary
HXRC
Secondary
TC390 M-VOL -- No Yes for TC390 Sync
No for TC390 Async
Yes
TC390 R-VOLNo--NoNo
HXRC Primary Yes for TC390 Sync
No for TC390 Async
No -- Yes
1
1. An XP1024/XP128/XP12000/XP10000 volume that is an HXRC secondary device cannot also be an HXRC primary in
the same XRC session, but it can be an HXRC primary device in another XRC session.
HXRC Secondary Yes No Yes
1
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