Linux And Lvm Configuration; Tru64 Unix And Snapshot Configuration; Concurrent Use Of Cache Partition Manager; Vmware And Snapshot Configuration - Hitachi AMS2100 User Manual

Linux and LVM configuration

Tru64 UNIX and SnapShot configuration

Concurrent use of Cache Partition Manager

VMWare and SnapShot configuration

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Hitachi AMS 2000 Family Copy-on-Write SnapShot User Guide
VOL have the same data, split the pair and then rewrite the disk
signature so that they can retain different disk signatures can
use the uniqueid command to rewrite a disk signature. See the
Hitachi Adaptable Modular Storage Command Control Interface
(CCI) Reference Guide for the detail.
Command devices
When a path detachment, which is caused by a controller
detachment or interface failure, continues for longer than one
minute, the command device may be unable to be recognized at the
time when recovery from the path detachment is made. To make the
recovery, execute the "re-scanning of the disks" of Windows. When
Windows cannot access the command device although CCI is able to
recognize the command device, restart CCI.
A host cannot recognize both a P-VOL and its V-VOL at the same
time. Map the P-VOL and V-VOL to separate hosts.
When rebooting the host, the pair should be split or un-recognized
by the host. Otherwise, a system reboot takes a longer amount of
time.
When SnapShot is used together with Cache Partition Manager,
please refer to the Hitachi Storage Navigator Modular 2 Storage Features
Reference Guide .
When creating a backup of the virtual disk in the vmfs format using
SnapShot, shutdown the virtual machine that accesses the virtual
disk, and then split the pair.
If one LU is shared by multiple virtual machines, shutdown all the
virtual machines that share the LU when creating a backup.
Therefore, it is not recommended to share one LU by multiple virtual
machines in the configuration that creates a backup using SnapShot.
The VMWare ESX has a function to clone the virtual machine.
Although the ESX clone function and SnapShot can be linked,
cautions are required for the performance at the time of execution.
For example, when the volume which becomes the ESX clone
destination is a SnapShot P-VOL pair whose pair status is Paired,
since the data is written to the S-VOL for writing to the P-VOL, the
time required for a clone may become longer and the clone may be
terminated abnormally in some cases. To avoid this, we recommend
Planning and design