HP StorageWorks Disk Array XP operating system configuration guide: SGI IRIX (A5951-96075, December 2005)

HP StorageWorks Cache LUN XP

HP StorageWorks Auto Path XP

HP StorageWorks Cluster Extension XP

HP StorageWorks Performance Advisor XP

Fibre Channel interface

The XP family of disk arrays suppor ts these Fibre Channel elements:

• Connection speed

of 1 Gbps and 2 Gbps

• Short-wave non-OFC (open ﬁber control) optical interface

• Multimode optical cables with SC or LC connectors

• Public or privat

e arbitrated loop (FC-AL) or direct fabric attach

• Fibre Channel switches

Even though the interface is Fibre Channel, this guide uses the term “SCSI d isk” be cause

disk array devices are d eﬁned to the host as SCSI disks.

Device emulation types

The XP family of disk arrays suppor ts these device emulation t ypes:

• OPEN-x devices: OPEN-x lo gical units represent disk devices. Except for

OPEN-V, these devices are based on ﬁxed sizes. O PEN-V is a user-deﬁned size.

Supported emulations include OPEN-3, OPEN-8, OPEN-9, OPEN-E, OPEN-L,

and OPEN-V devices.

• LUSE devices (OPEN-

): 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-x LUSE volume created from ten O PEN-x

volumesisdesignatedasOPEN-x*10.

• CVS d evices (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 s ize that you determine. O PEN-L

does not support CVS.)

• LUSE (expanded) C VS 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 O PEN-9*3-CVS.

Failover

The XP family of disk arrays supports many standard software products that p rovide host,

appl

ication, or I/O path failover and management.

Installation