NFS

Revision as of 21:31, 19 April 2006

pmtpa

Required for all machines:

• /home
  • suda (in guise of "izwinger" since february 2006)
  • Not mounted on amane

Required for apaches and others dealing with file data:

• /mnt/upload3
  • amane
• /mnt/math
  • amane

Required for backup-dump work:

• /mnt/benet
  • benet

yaseo

knams

Old stuff

zwinger.wikimedia.org:/home     /home                   nfs     defaults       0 0

vs.

zwinger.wikimedia.org:/home  /home  nfs  bg,soft,tcp,rsize=8192,wsize=8192,timeo=14,nfsvers=3 0 0

• use version 3! Version 2 breaks > 2GB file access in some cases.
• bg - system can boot without mounting it - will retry in background
• soft - return I/O error to caller on major NFS timeout instead of retrying indefinitely
• tcp - use tcp instead of the default of udp - Why? because this ?
• rsize, wsize of 8192 - better throughput (ike)

It seems that explicit version 2 breaks > 2GB file access, but implicit (default) version 2 does not. Need to do a bit more checking to see if it's not some of the other options causing it.