Notes on using the power savings option (ams/wms), Path – HP XP P9500 Storage User Manual

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Table 11 Relationship between WWN of port and controller (AMS/WMS) (continued)

WWN of port

Controller

Model

XXXXXXXXXXXXXXX6

XXXXXXXXXXXXXXX7

XXXXXXXXXXXXXXX8

Controller 1

XXXXXXXXXXXXXXX9

XXXXXXXXXXXXXXXA

XXXXXXXXXXXXXXXB

XXXXXXXXXXXXXXXC

XXXXXXXXXXXXXXXD

XXXXXXXXXXXXXXXE

XXXXXXXXXXXXXXXF

In WWNs, "X" is an arbitrary number or character. The ports in the same apparatus have the identical value.

Path status and examples of recovery procedure (AMS/WMS)

This section describes errors that require recovery operation on the external storage system side
when the path status is not normal. When the path status is not normal, see the following table to
recover the path status. If you cannot restore the path, call HP Technical Support (see

“Support

and other resources” (page 66)

).

Table 12 Path status and examples of recovery procedure (AMS/WMS)

Examples of recovery procedure

Path status

Settings of the LU paths may have been changed by LUN Manager. Check the settings of the LU
paths. If the settings of the LU paths have been changed, change the settings back to the ones when

External device
setting changed

the volume is mapped. Or use External Storage to perform the Delete LU operation and perform the
Add LU operation again.

The access attribute of the volume may have been changed by Data Retention. Check the access
attribute of the volume. If the volume is protected by the access attribute, release the protection.

The volume may have been set as a pair volume for data copy. Check if the volume is set as a pair
volume of Business Copy, Continuous Access Synchronous or some other copy program. If the volume

Illegal request or
Response error

is set as a pair volume, the volume may be protected because of the pair status. When the volume
is protected, change the pair status or delete the pair.

The access attribute of the volume may have been changed by Data Retention. Check the access
attribute of the volume. If the volume is protected by the access attribute, release the protection.

There is a problem with connection to the external storage system. The possible causes are:

Cannot detect
port

The Fibre cable is not physically connected in the proper way.

The setting of the topology does not match between the external port and the target port.

If the external storage system is connected through switches, the settings for the switches may not
be appropriate.

Make sure that the Fibre cable is connected properly, and then set the Fibre Channel port properly
using LUN Manager.

If host group security is enabled, disable host group security using LUN Manager.

Notes on using the power savings option (AMS/WMS)

When the AMS 2500, AMS 2300 or AMS 2100 storage system is connected as an external
storage system and the Power Savings option is enabled on the external storage system, do not
access external volumes from a host if the external volumes are spinning down. If an external
volume is accessed from a host when the external volume is spinning down, the status of the external
volume changes to Blockade.

AMS/WMS storage system

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