Table of Contents
Advertisement
TagmaStore USP/NSC Storage System
When you connect a TagmaStore USP or NSC storage system as the external
storage system, you need to set the port to the host group for the Windows
hosts (host mode 0C: Windows, host mode 2C: Windows Extension).
Also, the port attribute must be the target port or the RCU target port.
Setting the Host Mode Option When a Volume of More
Than 2 TB Is Used (USP/NSC)
If a volume, which has the capacity of more than 2TB, is mapped as an
external volume, host mode option No. 24 must be enabled. If No. 24 is
disabled, a volume, which has the capacity of more than 2TB, cannot be
mapped as an external volume. For how to set the host mode option, see the
LUN Manager User's Guide of TagmaStore USP or NSC storage system.
Path Status and Examples of Recovery Procedure
(USP/NSC)
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 the Hitachi Data Systems Support Center (see
Hitachi Data Systems Support
Table A-10
Path Status
External device
setting changed
Illegal request or
Response error
A-10
Hitachi Universal Storage Platform V/VM Universal Volume Manager User's Guide
Center).
Path Status and Examples of Recovery Procedure (USP/NSC)
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 the volume is mapped. Or use
Universal Volume Manager 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
Utility. 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 ShadowImage, TrueCopy, Universal Replicator
or some other copy program. If the volume 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
Utility. Check the access attribute of the volume. If the volume is protected by
the access attribute, release the protection.
Connecting External Storage Systems
Examples of Recovery Procedure
Calling the
Advertisement
Table of Contents
