Thecus i8500, Руководство пользователя

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2. When making rollback, the original VD cannot be accessed for a while.
At the same time, the system connects to original VD and snaps VD,
and then starts rollback.
3. During rollback, data from snap VD to original VD, the original VD can
be accessed and the data in VD just like it has finished rollback. At the
same time, the other related snap VD(s) can not be accessed.
4. After rollback, the other snapshot VD(s) after the VD which is doing
rollback will be deleted.
4.5 Disk roaming
Physical disks can be re-sequenced in the same system or move all physical
disks from system-1 to system-2. This is called disk roaming. System can
execute disk roaming online. Please follow the procedures.
1. Select
“/ Volume configuration / RAID group”
.
2. Mouse moves to the gray button next to the RG number; click
“Deactivate”
.
3. Move all PDs related to the RG to another system.
4. Mouse moves to the gray button next to the RG number; click
“Activate”
.
5. Done.
Disk roaming has some constraints as described in the followings:
1. Check the firmware of two systems first. It is better that both systems
have the same firmware version or newer.
2. All physical disks of related RG should be moved from system-1 to
system-2 together. The configuration of both RG and VD will be kept
but LUN configuration will be cleared in order to avoid conflict with
system-2.
4.6 Support Microsoft MPIO and MC/S
MPIO
(Multi-Path Input/Output) and
MC/S
(Multiple Connections per Session)
Caution
Before executing rollback, it is better to dismount file system for
flushing data from cache to disks in OS first. System sends
pop-up message when user executes rollback function.