Table 11-4 resolving urz pair suspension – HP StorageWorks XP Remote Web Console Software User Manual

Page 300

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6 Troubleshooting

Hitachi Universal Replicator for IBM /OS User’s Guide

Delete
Pair to
RCU

Primary
data
volume

The primary storage system detected that the
secondary data volume status changed to
simplex because the user released the pair
from the secondary storage system.

Release the pair from the primary
storage system, and then restore the
pair. You should use the Entire initial
copy option to resynchronize the pair.
You can use the None initial copy option
only if no data on the primary data
volume or secondary data volume
changed.

Seconda
ry Data
Volume
Failure

Primary
data
volume

The primary storage system detected an error
during communication with the secondary
storage system, or detected an I/O error
during update copy.

Check the path status on the DKC
Status window (see Table 11-2).
Clear any error conditions at the
secondary storage system and the
secondary data volume. If you need to
access the secondary data volume,
release the pair from the secondary
storage system. If any data on the
secondary data volume has changed,
release the pair from the primary
storage system and then re-create the
pair (Add Pair). If data on the secondary
data volume has not changed, restore
the pair from the primary storage
system.

MCU
IMPL

Primary
data
volume,
secondar
y data
volume

The primary storage system could not find
valid control information in its nonvolatile
memory during the IMPL procedure. This error
occurs only if the primary storage system is
without power for more than 48 hours (power
failure and fully discharged batteries).

Restore the pair from the primary
storage system. The primary storage
system will perform an initial copy
operation in response to the request for
restoring the pair, so that the entire
primary data volume will be copied to
the secondary data volume.

Initial
Copy
Failed

Primary
data
volume,
secondar
y data
volume

The primary storage system suspended this
pair during the initial copy operation. The data
on the secondary data volume is not identical
to the data on the primary data volume.
Invalid track format can cause this suspension.

Release the pair from the primary
storage system. Clear all error
conditions at the primary storage
system, the primary data volume, the
secondary storage system, and the
secondary data volume. Reformat failed
track by using ICKDSF. Restart the
initial copy operation by using the Add
Pair window.

MCU
P/S-OFF

Secondar
y data
volume

The primary storage system suspended all URz
pairs because the primary storage system was
powered off.

None. The primary storage system will
automatically restore these URz pairs
when the primary storage system is
powered on.

Table 11-4 provides troubleshooting instructions for URz pair suspension.

Hardware failures which affect the cache storage and the shared memory of
the primary or secondary storage system may also cause the URz pairs to be
suspended.

Table 11-4 Resolving URz Pair Suspension

Classification

Causes of Suspension

SIM

Recovery procedure

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