HP StorageWorks Enterprise Virtual Array 3000/5000 Release Notes (VCS 3.028) (5697-5385, December 2005)

Table 5 Failback Setting s by Operating System
Operating system
Default behavior
Settings supported
Windows® Secure Path Autoback done by the host
No Preference, Path A/B - Failover
Only.
Sun Solaris® Secure Path Autoback done by the host
No Preference, Path A/B - Failover
Only.
HP-UX Secure P
ath
Autoback done
by the host
No Preference, Path A/B - Failover
Only.
IBM AIX Secure Path Autoback done by the host
No Preference, Path A/B - Failover
Only.
Tru64 UNIX
Host follows the unit
All settings allowed.
Recommended setting: Path
A/B - Failover/Failback.
VMS (7.3-1 a
nd greater)
Host follows the unit
All setting
s allowed.
Recommende
d setting: Path
A/B - Failover/Failback.
Changing virtual disk failover/failback setting
Changing the failover/failback setting of a virtual disk may impact which controller presents the disk.
Table 6 identifies the presentation behavior that results when the failover/failback setting for a virtual
disk is ch
anged.
NOTE:
If the new setting causes the presentation of the virtual disk to move to a new controller, an y snapshots
or snapclones assoc iated with the virtual disk will also be moved.
Table 6 Impact on virtual disk p resentation when c h anging failover/failback s et tin g
New setting
Impact on virtual disk presentation
No Preference
None. The disk maintains its original presentation
Path A Failover
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.
Path B Failover
If the disk is currently presented on controller A, it is moved to
controllerB.IfthediskisoncontrollerB,itremainsthere.
Path A Failover/Failback 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.
Path B Failover/Failback If the disk is currently presented on controller A, it is moved to
controllerB.IfthediskisoncontrollerB,itremainsthere.
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