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IBM AIX configuration

Requirements

• Switch zoning or controller level SSP must be used to ensure each single path HBA has an

exclusive path to its LUNs.

• Single path HBA server can be in the same fabric as servers with multiple HBAs.

• Single path HBA server cannot share LUNs with any other HBAs.

• In the use of snapshots and snapclones, the source virtual disk and all associated snapshots

and snapclones must be presented to the single path hosts that are zoned with the same

controller. In the case of snapclones, after the cloning process has completed and the clone

becomes an ordinary virtual disk, you may present that virtual disk as you would any other

ordinary virtual disk.

HBA configuration

• Host 1 is a single path HBA host.

• Host 2 is a dual HBA host with multipathing software.

See Figure 83 (page 163).

Risks

• Single path failure may result in loss of data accessibility and loss of host data that has not

been written to storage.

• Controller shutdown results in loss of data accessibility and loss of host data that has not been

written to storage.

NOTE: For additional risks, see “IBM AIX” (page 167).

Limitations

• HP P6000 Continuous Access is not supported with single path configurations.

• Single path HBA server is not part of a cluster.

• Booting from the SAN is not supported.

162 Single path implementation

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HP P6350 Manual do Utilizador Página 162