HP 4000.6000.8000 Enterprise Virtual Arrays - Manual (Page 63)

Table 25 Failback preference behavior (continued)
Behavior Point in time Setting
If cache data for a LUN exists on a particular
controller, the unit will be brought online there. On dual boot or controller resynch
Otherwise, the units are brought online to
Controller B.
All LUNs are brought online to the surviving
controller. On controller failover
All LUNs remain on the surviving controller.
After controller restoration, the units that are On controller failback
online to Controller A and set to Path B are
brought online to Controller B. This is a one
time occurrence. If the host then moves the LUN
using SCSI commands, the LUN will remain
where moved.
Table 26 (page 63) describes the failback default behavior and supported settings when
AULA-compliant multipath software is running with each operating system. Recommended settings
may vary depending on your configuration or environment.
Table 26 Failback Settings by operating system
Supported settings Default behavior Operating system
No Preference
Path A/B – Failover Only Host follows the unit
1
HP-UX
Path A/B – Failover/Failback
No Preference
Path A/B – Failover Only Host follows the unit
1
IBM AIX
Path A/B – Failover/Failback
No Preference
Path A/B – Failover Only Host follows the unit
1
Linux
Path A/B – Failover/Failback
No Preference Host follows the unit OpenVMS
Path A/B – Failover Only
Path A/B – Failover/Failback
(recommended)
No Preference Host follows the unit
1
Oracle Solaris
Path A/B – Failover Only
Path A/B – Failover/Failback
No Preference
Path A/B – Failover Only Host follows the unit
1
VMware
Path A/B – Failover/Failback
No Preference Failback performed on the host Windows
Path A/B – Failover Only
Path A/B – Failover/Failback
Failback preference setting for HSV controllers 63