User guide

Risks
• Single path failure may result in data loss or disk corruption.
NOTE: For additional risks, see “Linux failure scenarios” (page 133).
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 38 Linux (32-bit) configuration
5 SAN switch 11 Network interconnection
6 SAN switch 22 Host 1
7 Controller A3 Host 2
8 Controller4 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.
• 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
Supported configurations 127