Setting up a scsi or fibre channel mirrored volume – Avago Technologies LSI20320 User Manual

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Fusion-MPT Special Features

5.1.1

Setting Up a SCSI or Fibre Channel Mirrored Volume

After determining that the adapter is functioning correctly in your system,
you are ready to create a mirrored set, as shown in the example below.

Note:

A SCSI device is used in the following examples. The Fibre
Channel syntax and commands are identical.

Optimal

The mirrored volume is fully
functional; the primary and
secondary disks are
synchronized

This is the normal run-time state of
a mirrored volume.

Degraded

One of the members of the
set is unavailable

Service must be performed on the
set in order to bring the mirrored
volume back to Optimal state.

Re-Synchronizing The data from the primary

member is being copied to
the secondary member

This state is non-optimal, but is nor-
mal. When the data copy is
complete, the set will transition to
the optimal state without manual
intervention.

Failed

The volume set is no longer
available to the system

Service must be performed on the
set to return it to operation.

Term

Meaning

Related FCode
Commands

Notes

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