HP XP P9500 Storage - Manual (Page 493)

Table 112 Using a 4x4x4 Cascade Configuration (continued)
See Description Target
Maintenance or
Failure
Number
configuration to a 4x4
configuration lost from memory)”
(page 514)
(Intermediate
→
Remote).
“Operating procedure
during an intermediate Suspend Continuous
Access Synchronous Z Intermediate site
storage system failure 9
site storage system copy pairs by using the (with information lost
from memory)
failure (with Continuous Access
information lost from
memory)” (page 517) Synchronous Z
Consistency
Preservation function.
The Continuous Access
Synchronous Z copy
pairs whose S-VOLs are
in the storage system in
which the failure
occurred must be
deleted and then
recreated.
“Operating procedure
during an intermediate Suspend Continuous
Access Synchronous Z Intermediate site
storage system failure 10
site storage system copy pairs by using the (with no information
lost from memory)
failure (with no Continuous Access
information lost from
memory)” (page 523) Synchronous Z
Consistency
Preservation Function,
and then resynchronize
them.
“Operating procedure
during a remote site Delete the Continuous
Access Journal Z copy Remote site storage
system failure (with 11
storage system failure pairs whose S-VOLs are information lost from
memory)
(with information lost in the storage system in
from memory)”
(page 524) which the failure
occurred, and then
reregister the EXCTG.
“Operating procedure
during a remote site Resynchronize the
Continuous Access Remote site storage
system failure (with no 12
storage system failure Journal Z copy pairs information lost from
memory)
(with no information whose S-VOLs are in
lost from memory)”
(page 527) the storage system in
which the failure
occurred.
“Operating procedure
during a primary site
host failure” (page 528) Perform a reverse
resync for Continuous
Access Synchronous Z Primary site host
failure 13
copy pairs, and then
change the
configuration to a
4x4x4 Multi-Target
configuration in which
operation is performed
from the intermediate
site.
“Operating procedure
during a path failure Suspend Continuous
Access Synchronous Z Path failure between
the Primary
→
14
between the primary copy pairs by using the Intermediate storage
systems
site storage system Continuous Access
and the intermediate Synchronous Z
Using a 4x4x4 Cascade Configuration 493