Copy threshold option – HP StorageWorks XP Remote Web Console Software User Manual

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Table 4 SSBs and Causes of Error Issued Upon Rejection of RAID Manager Commands (continued)

Cause of Error

RAID Manager Command

SSB

Because one of the following cases
happened, the XP Snapshot pair cannot
be created by specifying the
consistency number.

The specified consistency group
number is in use for XP Business
Copy Software.

The number of pairs has already
exceeded the maximum number of
pairs that can be created for one
consistency group.

The pair which uses the same P-VOL
exists already in the specified
consistency group.

paircreate

978a

The XP Snapshot pair cannot be created
because the specified consistency group
number is out of the range of the
number which can be specified.

paircreate

978b

The snapshot data cannot be stored
because the XP Continuous Access
Asynchronous Software pair status is
other than PSUS or PSUE when XP
Snapshot (P-VOL) and XP Continuous
Access Asynchronous Software (S-VOL)
share the volume.

pairsplit

978c

The XP Snapshot pair for which the
consistency group is specified cannot
be created because the P-VOL or S-VOL
of the XP Continuous Access
Asynchronous Software pair is specified
as the P-VOL of the XP Snapshot pair.

paircreate

978e

The XP Thin Provisioning virtual volume
that is undergoing capacity expansion
is specified as the XP Snapshot P-VOL.
Therefore, the XP Snapshot pair cannot
be created.

paircreate

9790

The XP Snapshot pair cannot be created
because the XP Thin Provisioning
Software V-VOL that is discarding zero
data is specified as a P-VOL of the XP
Snapshot pair.

paircreate

9793

The consistency group information
cannot be obtained because the XP
Snapshot is not installed.

All commands

B9A7

Copy Threshold Option

If the load of the storage system increases, host server I/O performance (response) may be
degraded. If XP Snapshot performs the restore operation when the load of the storage system is
heavy, it is more likely that host server I/O performance (response) may be degraded. The Copy
Threshold option temporarily stops copy processing caused by the restore operation when the load
of the storage system is heavy. If you set this option in effect, you can minimize the degradation
of host I/O performance by temporarily stopping copy processing caused by the restore operation
when the load of the storage system is heavy.

Copy Threshold Option

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