22 Aug
2011
22 Aug
'11
10:48 a.m.
I have a DRBL server, basically an nfs fileserver, which I am rebuilding. I want to put the high i/o directories on a separate raid array for performance. Currently everything is under / in one raid array.
How can I tell which directories, obviously other than /home, are getting high reads and/or writes? Any tools to measure i/o per directory?
Well there certainly might be better ways, but if iotop for example indicates a process is producing high file IO, lsof -p <pid> will show which file.
Hth, jlc