HP EVA P6550 HP P6300/P6500 EVA User Guide (5697-2486, September 2013) - Page 163

Figure 83 IBM AIX Configuration 1. Network interconnection 2. Single HBA server (Host 1) 3. Dual HBA server (Host 2) 4. Management server 5. SAN switch 1 6. SAN switch 2 7. Controller A 8. Controller B VMware configuration Requirements • Switch zoning or controller level SSP must be used to ensure each single path HBA has an exclusive path to its LUNs. • All nodes with direct connection to a disk must have the same access paths available to them. • Single path HBA server can be in the same fabric as servers with multiple 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 2 is a dual HBA host with multipathing software. See Figure 84 (page 164). Risks • Single path failure may result in data loss or disk corruption. NOTE: For additional risks, see "VMware" (page 167). VMware configuration 163