HP StorageWorks XP12000 Configuratiehandleiding - Pagina 16

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HP StorageWorks XP12000 Configuratiehandleiding

RAID Manager command devices

Failover

16
fixed-sized logical disk devices (volumes). (OPEN-V is a CVS-based
custom disk size that you determine. OPEN-L does not support CVS.)
• LUSE (expanded) CVS devices (OPEN-x*n CVS): LUSE CVS
combines CVS devices to create an expanded device. This is done by
first creating CVS custom-sized devices and then using LUSE to
combine from 2 to 36 CVS devices. For example, if three OPEN-9
CVS volumes are combined to create an expanded device, this device
is designated as OPEN-9*3-CVS.
HP's RAID Manager optional software product manages Business Copy
(BC) or Continuous Access (CA) operations from a host server. To use
RAID Manager with BC or CA, use Command View or LUN
Configuration Manager to designate at least one disk array LDEV as a Raid
Manager command device. Refer to the Command View or LUN
Configuration Manager user guide for information about how to designate a
command device.
On the OS side, you should create a LUN 0 device of 35 megabytes (the
smallest allowed). This will allow you to use host-based RAID
management tools available from HP and will also allow HP support to do
some additional diagnostics.
Note that storage assigned to the LUN 0 device is not accessible from
OpenVMS.
The XP family of disk arrays supports many standard software products,
including Open VMS Multipath Software, that provide host, application, or
I/O path failover and logical volume (storage) management.
HP StorageWorks Disk Array XP Operating System Configuration Guide: OpenVMS