RAID Documentation

Raid Usage

Our raids are split over Yamato and Musashi. Here is how we use them now.

Yamato

/mnt/raid0

• Research users and projects

/mnt/raid1

• Research users

/mnt/raid2

• CVS and SVN

Musashi

/mnt/raid3

• x

/mnt/raid4

• Mirror, distfiles, iso's, etc.

Redistributing users across the Raids

To move a user from one raid to another:

1. Make sure the user is not logged in anywhere
2. Move the files from one raid to another in the appropriate directory for example
   • mv /mnt/raid0/home/m/mdeepwel /mnt/raid1/home/m
3. Update LDAP with the new root location
   • In ou=AutoFS,ou=home.users,cn=username,automountInformation, and update to new location. (using phpldapadmin is fine)
4. Restart autofs on any computer or service the user could be using, otherwise they will be able to login, but won't have a home directory.
   • If they use the cluster, you must restart autofs on each node, or restart the whole cluster.
   • Restart teleport, so they can use ssh/ftp to get their files from off site.
5. Update amanda to make sure the new user directory is backed up.