GRASS VALLEY K2 SAN, Installation And Service Manual

Page: 308 / 346

2. You can start and stop the Restripe Utility manually as follows:
• At any time while the Restripe Utility is in the process of restriping clips, you can right-click
the icon in the system tray, and select
Abort
. This stops the restripe process and closes the
Restripe Utility.
NOTE: Stopping the Restripe Utility before it completes its processes leaves some of your
existing media still striped across the original narrower stripe group. Once the Restripe
Utility is stopped, you cannot restripe that existing media.
Recovering the media database
Use the topics in this section to understand and implement recovery strategies for your K2 storage
media database.
About the automatic database backup process
Every 15 minutes the K2 system checks to see if any media operations have changed the media
database. If a change has occurred, the K2 system creates a backup file of the media database. The
backup file is saved in the same directory as the media database using a rotating set of three file
names. These files are named
media.db_bakX
where
X
is the number in the rotation. Each time a
backup occurs, the oldest backup file is overwritten. If some condition renders one of the backup
files un-writable, the backup file following that in the rotation is subsequently used for every backup
until the condition is resolved.
Identifying a corrupt media database
1. Check the following symptoms, as they could indicate a corrupt media database:
• On startup, the Grass Valley MetaDataService is unable to start. This is indicated in the
Services control panel if the Grass Valley MetaDataService does not display as Started.
• The K2 log displays a “…file is encrypted or is not a database…” error.
2. As soon as you suspect a corrupt media database, stop all media access and take the K2 system
offline.
Restoring the media database
1. Stop all media access and take the K2 system offline.
If a K2 SAN, follow procedures to take connected K2 client systems and K2 Media Servers
offline. Shutdown connected K2 client systems. Refer to the
K2 SAN Installation and Service
Manual .
2. Navigate to the V:\media directory.
If a K2 SAN, access this directory from a K2 Media Server with role of media file system server.
3. Make a copy of the media.db and media.db_bak* files and store them in a secure location.
308 K2 SAN Installation and Service Manual 2014 01 27
Administering and maintaining the K2 SAN