Notes and restrictions, Notes and restrictions 103 – HP XP Continuous Access Software User Manual

Page 102

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102

HP StorageWorks Disk Array XP RAID Manager: User’s Guide

raidvchkdsp

. This command shows the guarding parameters for specified

volumes, based on RM configuration file.

(page 243)

raidvchkscan

. This command shows the guarding parameter for specified

volumes, based on the raidscan command.

(page 250)

Notes and Restrictions

LUN Security Extension has the following restrictions.

File systems using LUN Security Extension

• In the case of UNIX file system volumes, the volumes must be

mounted with the Read Only option by setting Open LDEV Guard
after the volumes are unmounted.

• In the case of Windows2003 file systems, you have to use the “-x

mount” and “-x umount” options of the above-cited RAID Manager
commands.

• In the case of Windows NT or Windows 2000, Open LDEV Guard

volumes set to Write Protect (read-only) mode cannot be used as
NTFS or FAT file systems.

LVM(VxVM) and LUN Security Extension

When LVM volumes are to be used as Open LDEV Guard volumes, disable
LUN Security Extension. Then LVM write commands may be issued to the
volumes. Then re-enable Open LDEV Guard.

High Availability cluster server configurations

You should not use LUN Security Extension in HA environments, if HA
cluster software will be writing metadata at regular intervals in order to
confirm whether its disks are available or not.

Dynamic disk on Windows

LUN Security Extension volumes can not be used with the dynamic disk
feature, because dynamic disk does not handle the volumes set to Write

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