HP XP Racks - Manual (Page 406)

Table 107 Using a Delta Resync Configuration (continued)
See Description Target
Maintenance
or Failure
information lost from
memory)” (page 427)
“Operating procedure
during a local site storage Suspend Cnt Ac-S Z copy pairs, and then
change the configuration to a 2DC Local site storage system
failure (with information lost
from memory)
system failure (with configuration (Primary → Remote). During
information lost from
memory” (page 431) recovery, the Cnt Ac-S Z copy pairs and delta
resync pairs must be deleted and then
recreated.
“Operating procedure
during a local site storage Suspend Cnt Ac-S Z copy pairs, and then
change the configuration to a 2DC
configuration (Primary
→ Remote).
Local site storage system
failure (with no information
lost from memory)
system failure (with no
information lost from
memory)” (page 435)
“Operating procedure
during a remote site storage After error recovery, the Cnt Ac-J Z copy pairs
and delta resync pairs must be deleted and
recreated. Remote site storage system
failure (with information lost
from memory)
system failure (with no
information lost from
memory)” (page 435)
“Operating procedure
during a remote site storage After error recovery, resynchronize Cnt Ac-J
Z copy pairs. Remote site storage system
failure (with no information
lost from memory)
system failure (with no
information lost from
memory)” (page 438)
“Primary Site Host Failure”
(page 438) Perform a delta resync, and then change the
configuration to a Delta Resync configuration Primary site host failure
in which the operation is performed from the
local site (Local
→ Primary, Local → Remote).
“Operating procedure
during a path failure Suspend Cnt Ac-S Z copy pairs, and then
change the configuration to a 2DC
configuration (Primary
→ Remote).
Path failure between the
Primary
→ Local storage
systems between the primary site
storage system and the local
site storage system”
(page 443)
NOTE: The term "storage system failure, with information lost from memory," indicates a failure
that causes the loss of information in memory. In such a failure, the copy pair information and the
data are completely lost, so the hardware information must be reconfigured.
This section explains the maintenance and troubleshooting procedures for a Delta Resync
configuration.
The figures in the procedures in this section use the following legend:
The itemized lists under the figures in the procedures describe the commands that must be executed
in the procedures.
Performing Primary Site Storage System Maintenance
This subsection explains the procedures for performing primary site storage system maintenance.
The procedure in this section uses the following legend:
406 Maintenance and troubleshooting operations