Changing Virtual Disk Failover/Failback Setting; Impact On Virtual Disk Presentation When Changing Failover/Failback Setting - HP StorageWorks 6400/8400 - Enterprise Virtual Array User Manual

Operating system
2
Windows
Sun Solaris
IBM AIX
Linux
Novell NetWare
VMware
1
For HPUX 11.31 native multipathing, the supported settings are No Preference and Path A/B - Failover Only
2
These settings apply to Active/Active MPIO DSM version 3.x.

Changing virtual disk failover/failback setting

Changing the failover/failback setting of a virtual disk may impact which controller presents the disk.
Table 14 identifies the presentation behavior that results when the failover/failback setting for a virtual
disk is changed.
NOTE:
If the new setting causes the presentation of the virtual disk to move to a new controller, any snapshots
or snapclones associated with the virtual disk will also be moved.
Table 14 Impact on virtual disk presentation when changing failover/failback setting
New setting
No Preference
Path A Failover
Path B Failover
Path A Failover/Failback
Path B Failover/Failback
Default behavior
Failback performed on the host
Failback performed on the host
Failback performed on the host
Failback performed on the host
Failback performed on the host
Failback performed on the host
Impact on virtual disk presentation
None. The disk maintains its original presentation.
If the disk is currently presented on controller B, it is moved to
controller A. If the disk is on controller A, it remains there.
If the disk is currently presented on controller A, it is moved to
controller B. If the disk is on controller B, it remains there.
If the disk is currently presented on controller B, it is moved to
controller A. If the disk is on controller A, it remains there.
If the disk is currently presented on controller A, it is moved to
controller B. If the disk is on controller B, it remains there.
HP StorageWorks 6400/8400 Enterprise Virtual Array user guide
Settings supported
All settings allowed:
No Preference
Path A/B Failover Only
Path A/B Failover/Failback
No Preference
Path A/B Failover Only
No Preference
Path A/B Failover Only
No Preference
Path A/B Failover Only
No Preference
Path A/B Failover Only
No Preference
Path A/B Failover Only
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