HP 6400/8400 HP StorageWorks 6400/8400 Enterprise Virtual Array User Guide - Page 123

HBA configuration, Risks, Limitations, Linux (64-bit) configuration, Requirements

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HBA configuration • Host 1 is a single path HBA. • Host 2 is a dual HBA host with multi-pathing software. See Figure 37 (page 123). Risks • Single path failure may result in data loss or disk corruption. NOTE: For additional risks, see "Linux failure scenarios" (page 129). 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 supported on single path HBA servers. Figure 37 Linux (32-bit) configuration 1 Network interconnection 2 Host 1 3 Host 2 4 Management server 5 SAN switch 1 6 SAN switch 2 7 Controller A 8 Controller Linux (64-bit) 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. Supported configurations 123

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HBA configuration
•
Host 1 is a single path HBA.
•
Host 2 is a dual HBA host with multi-pathing software.
See
Figure 37 (page 123)
.
Risks
•
Single path failure may result in data loss or disk corruption.
NOTE:
For additional risks, see
“Linux failure scenarios” (page 129)
.
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 supported on single path HBA servers.
Figure 37 Linux (32-bit) configuration
5 SAN switch 1
1 Network interconnection
6 SAN switch 2
2 Host 1
7 Controller A
3 Host 2
8 Controller
4 Management server
Linux (64-bit) 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.
Supported configurations
123