Filter
Top Products
Chapter 6 Managing the File System
Performing Stripe Group Movement
StorNext User’s Guide 158
Although the Movement Wizard focuses primarily on data movement,
you can also move metadata stripe groups. You can move a metadata
stripe group to a new stripe group of the same or greater capacity as the
original metadata stripe group. However, during metadata stripe group
movement the file system must be down, and no new read/write
operations can occur until all metadata has been transferred and the file
system is restarted. The exact amount of downtime is based on the disk
size.
For movement purposes, StorNext 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 metadata/journal move cannot contain data.
(StorNext has different mechanisms for moving data stripe groups versus
metadata/journal stripe groups.)
Launching the Movement
Wizard 6
Use the following procedure to perform stripe group movement.
1 From the SNFS home page, choose Move Stripe Group from the
Admin menu. The Move Stripe Group screen appears, showing the
following information for completed moves and moves in progress:
• File System: The name of the file system involved in the move
Note: When moving a metadata stripe group, the Movement Wizard
shuts down the file system. Depending on the number and
size of files in your system configuration, metadata movement
could take a long time, so plan accordingly.
After data movement is complete, you must mark the source
stripe group as “down.”
Note: During Stripe Group Movement, affinities are preserved when
files are moved from one stripe group to another.
Consequently, there must be sufficient space on one or more
destination stripe groups for any affinities on the source stripe
group. (You must add any affinities from the source stripe
group to the new stripe group.)