HP XP Racks - Manual (Page 92)

For 3Par V800 and V400 series
Parameter Setting Parameter
generic-legacy host mode
The volumes in which "Dynamic optimization" or "Adaptive optimization" is applied must not be
used as the external volume of HP XP7 Storage; otherwise the performance of the external volume
may possibly be degraded and the operation cannot be guaranteed.
Storage system with a product name displayed as "(Generic)"
The generic External Storage profile (available with 70-04-x) provides support for connecting Fibre
channel attached, external storage systems without testing them individually. It will automatically
support storage systems that conform to a subset of the standard SCSI Primary Commands. (If you
need further information, please contact the HP Technical Support). An HP representative can
perform a step-wise process to install and connect external storage. These steps (defined below)
follow a standard process to ensure that no obvious problems exist in the virtualization. Updating
a HP XP7 Storage to the minimum firmware level 70-05-0x automatically installs the generic Ext
Stor profile and makes it available.
Support conditions when product name displays as “(Generic)”
When an external storage system is connected to a HP XP7 Storage and is supported with the
generic Ext Stor profile, the following support conditions exist.
•
Vendor name that corresponds to the external storage system is displayed.
•
Product name is displayed as “Generic”.
NOTE: If multiple generic storage systems of the same vendor are connected, they are
displayed as a single storage system. As a result, if Disconnect External Storage Systems or
Reconnect External Storage Systems is run for generic storage systems, all the generic storage
system volumes are disconnected or reconnected. For disconnecting or reconnecting a particular
generic storage system volume, the best practice is to run the command in the external volume
unit rather than the external storage system unit.
•
Serial number is not displayed.
•
Characteristic1(device information). LUN assigned to the path with the highest priority is
displayed.
•
Path Mode and Load Balance Mode. Load Balance Mode is set to Disable by default. Three
Path Mode settings are available:
1.
Normal Round-robin (For Multi Path)
2. Extended Round-robin (For Multi Path)
3. Disable (For Single Path and ALUA)
By default, Load Balance Mode is set to Disable for the generic Ext Stor profile. As a result,
Ext Stor uses Single Mode (Active/Passive). If the attached external storage supports Multi
pathing (Active/Active), the Load Balance Mode setting must be changed to Extended
Round-robin or Normal Round-robin.
The Load Balance Mode can be changed in the Add External Volumes window of Remote Web
Console.
92 Supported external storage systems