Hi,
I have a server running under CentOS 5.8 and I appear to be in a situation in which the NFS file server is not recognizing the available space on a particular disk (actually a hardware RAID-6 of 13 2Tb disks). If I try to write to the disk I get the following error message
[root@nas-0-1 mseas-data-0-1]# touch dum touch: cannot touch `dum': No space left on device
However, if I check the available space, there seems to be plenty
[root@nas-0-1 mseas-data-0-1]# df -h . Filesystem Size Used Avail Use% Mounted on /dev/sdb1 21T 20T 784G 97% /mseas-data-0-1
[root@nas-0-1 mseas-data-0-1]# df -i . Filesystem Inodes IUsed IFree IUse% Mounted on /dev/sdb1 3290047552 4391552 3285656000 1% /mseas-data-0-1
I don't know if the following is relevant but the disk in question is served as one of 3 bricks in a gluster namespace.
Based on the test with touch, which is happening directly at the NFS level, this seems to be an NFS rather than gluster issue. I couldn't find any file in /var/log which had a time that corresponded to the failed touch test and I didn't see anything in dmesg. We have tried rebooting this system. What else should we look at and/or try to resolve or debug this issue?
Thanks.
Pat
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Pat Haley Email: phaley@mit.edu Center for Ocean Engineering Phone: (617) 253-6824 Dept. of Mechanical Engineering Fax: (617) 253-8125 MIT, Room 5-213 http://web.mit.edu/phaley/www/ 77 Massachusetts Avenue Cambridge, MA 02139-4301