Chapter 10.5.2. SDD compared to SDDPCM
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190 SAN Volume Controller: Best Practices and Performance Guidelines No_ reserve policy Exclusive host access single path policy Persistent reserve exclusive host policy Persistent reserve shared host access policy The usage of the persistent reserve now depends on the HDisk attribute: reserve_ policy. Change this policy to match your storage security requirements. There are three path selection algorithms: Failover Round robin Load balancing The latest SDDPCM code of 2.1.3.0 and later has improvements in failed path reclamation by health checker, a failback error recovery algorithm, Fibre Channel dynamic device tracking, and support for SAN boot device on MPIO- supported storage devices. 10.5.2 ...
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