Quantum 3.5.1 ユーザーズマニュアル

Using the Dynamic Resource Allocation Feature

StorNext User’s Guide

374

Use the following procedure to move a metadata/journal stripe group 

from a source LUN to a destination LUN.

Stop the File System Manager (FSM) for the file system.

If your StorNext configuration includes a failover environment, you 

must shut down any standby FSMs that would start when you shut 

down the primary FSM. The movement procedure will not complete 

successfully unless all FSMs are shut down.

(Optional) Run the cvfsck command on the file system. See 

.

Run sndiskmove <source-LUN-label-name> <destination-LUN-label-
name>

where <source-LUN-label-name> is the source stripe group from 

which the move starts, and destination-LUN-label-name is the 

destination stripe group to which you want to move data.
During the move process StorNext appends “.old” to the source 

stripe group name. This is to avoid confusion because the destination 

stripe group is given the same name as the original stripe group. Both 

stripe group names remain in the configuration file.

The metadata/journal stripe group you want to move 

cannot contain data. 

Sndiskmove 

treats metadata and journal stripe groups the 

same way, so it doesn’t matter whether the stripe group 

you want to move is a metadata stripe group, a journal 

stripe group, or a combined metadata and journal stripe 

group. The only caveat is that stripe groups used for 

movement cannot contain data.

If you attempt to move a metadata/journal stripe group 

that contains data, data loss could occur.

If you do not shut down standby FSMs, file 

system corruption or data loss could occur.