HP XP20000/XP24000 Configuratiehandleiding - Pagina 13

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HP XP20000/XP24000 Configuratiehandleiding

Host

Group

Mode

Function

Veritas Cluster Server

When a reserved volume receives a Mode

Sense command from a node that is not

reserving this volume, the host will receive

the following responses from the storage

system:

ON: Normal response

OFF (default): Reservation Conflict

NOTE:

CAUTION:

Changing host group modes for ports where servers are already installed and configured is disruptive

and requires the server to be rebooted.

Setting the system option modes

The HP service representative sets the system option mode(s) based on the operating system and

software configuration of the host. Notify your HP representative if you install storage agnostic software

(such as backup or cluster software) that may require specific settings.

Configuring the Fibre Channel ports

Configure the disk array Fibre Channel ports by using P9000 or XP Command View Advanced Edition

Software or XP Remote Web Console (shown). Select the settings for each port based on your storage

area network topology. Use switch zoning if you connect different types of hosts to the array through

the same switch.

When HMO 22 is ON, the volume

status (reserved/non-reserved) will be

checked more frequently (several tens

of msec per LU).

When HMO 22 is ON, the host OS

will not receive warning messages

when a Mode Select command is is-

sued to a reserved volume.

There is no impact on the Veritas

Cluster Server software when HMO

22 is OFF. Set HMO 22 to ON when

the software is experiencing numerous

reservation conflicts.

Set HMO 22 to ON when Veritas

Cluster Server is connected.

Default

Comments

NOTE:

Note:

Before setting HMO

22 ask your Hitachi

Data Systems repres-

entative for assist-

ance.

HMO 22 can be

changed while the

OFF

host is online. How-

ever I/O activity

may be affected

when it is being

changed. It is recom-

mended to stop the

host IO on the port

where you want to

change the HMO

22 setting.

XP Disk Array Configuration Guide: Solaris