HP EVA P6000 User Manual

Table 7 Failback preference settings (continued)
BehaviorPoint in timeSetting
Otherwise, the units are brought online to
Controller 2.
All LUNs are brought online to the surviving
controller.
On controller failover
All LUNs remain on the surviving controller.
There is no failback except if a host moves the
LUN using SCSI commands.
On controller failback
The units are brought online to Controller 1.At initial presentationPath A -
Failover/Failback
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 1.
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 2 and set to Path A are
brought online to Controller 1. This is a
one-time occurrence. If the host then moves the
LUN using SCSI commands, the LUN will
remain where moved.
The units are brought online to Controller 2.At initial presentationPath B -
Failover/Failback
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 2.
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 1 and set to Path B are
brought online to Controller 2. This is a
one-time occurrence. If the host then moves the
LUN using SCSI commands, the LUN will
remain where moved.
Table 8 (page 36) describes the failback default behavior and supported settings when
ALUA-compliant multipath software is running with each operating system. Recommended settings
may vary depending on your configuration or environment.
Table 8 Failback settings by operating system
Supported settingsDefault behaviorOperating system
No preferenceHost follows the unit
1
HP-UX
Path A/B – Failover only
Path A/B – Failover/Failback
No preferenceAuto failback done by the hostIBM AIX
Path A/B – Failover only
Path A/B – Failover/Failback
No preferenceAuto failback done by the hostLinux
36 P6300/P6500 EVA operation

HP EVA P6000 Specifications

General

Model	HP EVA P6000
Number of Storage Controllers	2
Management Software	HP Command View EVA
Drive Types	SAS, SSD
RAID Levels	RAID 0, 1, 5, 6
Connectivity	8 Gb Fibre Channel, 10 Gb iSCSI, 1 Gb iSCSI
Form Factor	Rack-mounted
Storage Controller Type	Dual controllers