Hitachi Data Retention Utility (Open Ldev Guard) - Hitachi TAGMASTORE MK-90RD011-25 User Manual

1.3.2

Hitachi Data Retention Utility (Open LDEV Guard)

Data Retention Utility (called Open LDEV Guard on 9900V/9900) enables you to prevent
writing to specified volumes by the RAID storage system guarding the volumes. Data
Retention Utility is similar to the Database Validator feature, setting a guarding attribute to
the specified LU.
The RAID storage system supports parameters for guarding at the volume level. You can set
and verify these parameters for guarding of open volumes using either the Storage Navigator
software or the Command Control Interface (CCI) software on the host. Once guarding is
enabled, the RAID storage system conceals the target volumes from SCSI commands (e.g.,
SCSI Inquiry, SCSI Read Capacity), prevents reading and writing to the volume, and protects
the volume from being used as a copy volume (i.e., TrueCopy and ShadowImage paircreate
operation fails).
For details on Data Retention Utility operations, please see the Data Retention Utility (or
Open LDEV Guard) User's Guide for the storage system (e.g., Hitachi TagmaStore
Data Retention Utility User's Guide), or contact your Hitachi Data Systems account team.
6 Chapter 1 Overview of Hitachi Copy Solutions
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