Changing raid type for internal storage – Grass Valley K2 System Guide v.7.2 User Manual
Page 119
07 April 2010
K2 System Guide
119
Changing RAID type for internal storage
8. After binding one or more new LUNs, you must make a new file system, as
explained in
“Making a new media file system on a K2 Summit/Solo” on page 120
Changing RAID type for internal storage
You can change the media storage on an internal storage K2 Media Client or K2
Summit Production Client to be either RAID 1 or RAID 0, as follows:
• RAID 1 — Recommended for the “full” media drive option, which is ten drives on
a K2 Media Client and eight drives on a K2 Summit Production Client. Not
recommended for media drive options with fewer drives. With RAID 1, two media
drives are configured as a mirrored pair to make one LUN. The capacity of each
LUN is roughly equivalent to the capacity of one drive, so your total media storage
capacity is approximately 50% of the sum total of all the drives. Since drives are
mirrored in each LUN, your media is protected against drive failure. If a drive fails,
the other drive in the LUN provides continued media access while you replace the
failed drive.
• RAID 0 — Can be used with any media drive option. Required on K2 Solo Media
Server. With RAID 0 there is no mirroring, so your total media storage capacity is
roughly equivalent to that of all drives combined. However, your media has no
RAID protection against drive failure. If one media drive fails, the entire group of
drives fails and you lose all your media.
Depending on your needs for capacity versus protection, you can change from one
RAID type to another, as explained in the following procedure.
NOTE: This procedure loses all media.
To change internal storage RAID-type configuration, do the following:
1. If you need to retain media, transfer it to another K2 system or otherwise back it up.
2. Unbind all media LUNs, as instructed in
. On a K2
Media Client, do not unbind LUN 0, as this is the system drive.
3. Restart.
4. Bind media drives, using the procedure
, as one of the
following:
• RAID 0 — Bind each media drive as a RAID 0 LUN.
• RAID 1 — Bind the ten drives as five RAID 1 LUNs.
5. Restart.
6. Make a new file system, as explained in
“Making a new media file system on a K2
7. If you backed up your media, you can now transfer it back.