HP 6100 HP 4x00/6x00/8x00 Enterprise Virtual Array User Guide (5697-0733, Marc - Page 161
Risks, Limitations, IBM AIX configuration, Requirements
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Risks • Single path failure may result in data loss or disk corruption. NOTE: For additional risks, see Table 61 (page 165). Limitations • HP Continuous Access EVA is not supported with single path configurations. • Single path HBA server is not part of a cluster. • Booting from the SAN is supported on single path HBA servers. Figure 57 Linux (64-bit) configuration 1 Network interconnection 2 Host 3 3 Host 2 4 Host 1 5 Management server 6 SAN switch 1 7 SAN switch 2 8 Controller A 9 Controller B 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 must be properly configured to work in a single HBA server configuration. The single path adapter driver from the AIX 2.0B EVA Kit should be installed: PC1000.image. HBA configuration • Host 1 is a single path HBA host. • Host 2 is a dual HBA host with multi-pathing software. Supported configurations 161
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