HP XP Racks User Manual

Page 533

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Table 113 Using a 4x4x4 Delta Resync configuration

See:

Description

Target

Maintenance
or failure

Page 534

Execute Delta Resync, and then change the configuration
to a 4x4 configuration that originates from the local site
(Local -> Remote).

Primary site
storage system
maintenance

Maintenance

Page 540

Suspend Cnt Ac-S Z copy pairs by using the Cnt Ac-S Z
Consistency Preservation Function, and then change the

Local site storage
system
maintenance

configuration to a 4x4 configuration that originates from
the primary site (Primary -> Remote).

Page 543

Suspend Cnt AC-J Z copy pairs (Primary -> Remote), and
then change the configuration to a 4x4 configuration that
originates from the primary site (Primary -> Local).

Remote site storage
system
maintenance

Page 545

Execute Delta Resync, and then change the configuration
to a 4x4x4 Delta Resync configuration that originates from
the local site (Local -> Primary and Local -> Remote).

Primary site host
maintenance

--

Operation in a 4x4x4 Delta Resync configuration is not
affected.

Local site host
maintenance

--

Operation in a 4x4x4 Delta Resync configuration is not
affected.

Remote site host
maintenance

Page 550

Execute Delta Resync, and then change the configuration
to a 4x4 configuration that originates from the local site

Primary site
storage system

Failure

(Local -> Remote). During recovery, the Cnt AC-J Z copy
pairs for the failed volume must be deleted and re-created.

failure (with
information lost
from memory)

Page 557

Execute Delta Resync, and then change the configuration
to a 4x4 configuration that originates from the local site
(Local -> Remote).

Primary site
storage system
failure (with no
information lost
from memory)

Page 562

Suspend Cnt Ac-S Z copy pairs by using the Cnt Ac-S Z
Consistency Preservation Function. During recovery, the

Local site storage
system failure (with

Cnt Ac-S Z copy pairs and Cnt AC-J Z copy pairs for the
failed volume must be deleted and re-created.

information lost
from memory)

Page 568

Suspend Cnt Ac-S Z copy pairs by using the Cnt Ac-S Z
Consistency Preservation Function, and then resynchronize
the Cnt Ac-S Z copy pair.

Local site storage
system failure (with
no information lost
from memory)

Page 568

After error recovery, delete the Cnt AC-J Z copy pairs
(Primary -> Remote and Local -> Remote) whose S-VOL is

Remote site storage
system failure (with

located in the storage system in which the failure occurred,
and then re-register the EXCTG.

information lost
from memory)

Page 573

After error recovery, resynchronize the Cnt Ac-J Z copy
pairs (Primary -> Remote and Local -> Remote) whose S-VOL

Remote site storage
system failure (with

is located in the storage system in which the failure
occurred.

no information lost
from memory)

Page 575

Execute Delta Resync, and then change the configuration
to a 4x4x4 configuration that originates from the local site
(Local -> Primary and Local -> Remote).

Primary site host
failure

Page 581

Suspend Cnt Ac-S Z copy pairs by using the Cnt Ac-S Z
Consistency Preservation Function, and then resynchronize
the Cnt Ac-S Z copy pair.

Failure on a path
from the
primary-site storage
system to the
local-site storage
system

Using a 4x4x4 Delta Resync configuration 533

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