HP StorageWorks XP10000 - Disk Array Manuale di configurazione - Pagina 12

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Fibre Channel 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 types

The XP family of disk arrays supports these device emulation types:

OPEN-K/3/8/9/E devices: OPEN-x logical units represent disk devices. Except for OPEN-V, these

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devices are based on fixed sizes. OPEN-V is a user-defined size. Supported emulations include

OPEN-3, OPEN-8, OPEN-9, OPEN-E, OPEN-L, and OPEN-V devices.

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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-K/3/8/9/E disk devices. For

example, an OPEN-x LUSE volume created from ten OPEN-x volumes is designated as OPEN-x*10.

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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. OPEN-L does not support CVS.)

LUSE (expanded) CVS devices (OPEN-x*n CVS): LUSE CVS combines CVS devices to create an

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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.

NOTE:

For the XP24000/XP12000/XP10000 when connected to external storage devices, HP recommends using

OPEN-V as the emulation the array makes visible to the host. This allows configuration of external storage

LDEVs without losing data. Using any other emulation may cause data loss in the external storage LUNs.

Refer to

Table 7

The disk arrays support many standard software products that provide host, application, or I/O path

failover and management.

The XP family of disk arrays support standard Simple Network Management Protocol (SNMP) for

remotely managing arrays. The SNMP agent on the SVP performs error-reporting operations requested

by the SNMP manager. SNMP properties are usually set from the SVP but they can also be set remotely

using XP Remote Web Console. Refer to the applicable user's guide for procedures.

Installing and configuring VMware for the XP disk array

on page 32 for detailed information.