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ManualsBrandsCompaq ManualsCarrying CaseStorageWorks XP10000 - Disk Array
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Fibre Channel interface
The XP family of disk arrays supports these Fibre Channel elements:
• Connection s
peeds of 1 Gbps, 2 Gbps, and 4 Gbps
• Short-wave non-OFC (open fiber control) optical interface
• Multimode optical cables with SC or LC connectors
• Fibre Chann
el switches
Even though the interface is Fibre Channel, this guide uses the term “SCSI disk” because disk array
devices are defined to the host as SCSI disks.
Device emulation typ es
The XP family of disk arrays supports these device emulation t ypes:
• OPEN-x devices: O PEN-x logical units represent disk devices. Except for OPEN-V, these devices
are based on fixed siz es. OPEN-V is a user-definedsize.SupportedemulationsincludeOPEN-3,
OPEN-8, OPEN-9, OPEN-E, OPEN-L, and OPEN-V dev ices.
• LUSE devices (OPEN-
x
*
n
): Logical Unit Size Expansion (LUSE) devices combine 2 to 36 OPEN-x
devices to create expanded LDEVs larger than standard OPEN-x disk devices. For example, an
OPEN-xLUSEvolumecreatedfromtenOPEN-xvolumesisdesignatedasOPEN-x*10.
• CVS devices (OPEN-x CVS): Volume Size Configuration (VSC ) defines custom volumes (CVS) that
are smaller than normal fixed-sized logical disk devices (volumes). (OPEN-V is a CVS-based
custom disk size that you determine. O PEN-L d oes not support CVS.)
• LUSE (expanded) CVS devices (OPEN-x*n CVS): LUSECVScombinesCVSdevicestocreatean
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.
Refer to Emulation specifications for detailed information.
Failo
ver
The XP family of disk arrays supports many standard software products that provide host, application, or
I/O path failover and management. TruCluster is one of the supported applications.
CAUTI
ON:
Tru64
vers ion 5.1B and later fully support dynamic load balancing and failover when multiple HBAs are
conn
ected to the same LUN. This feature is ONLY available with version 5.1B and later.
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Installation