number of inodes

[John Flanagan]

On Friday I received a file system overflow error on my HP-UX 10.2 machine so after work I doubled the number of inodes and increased nfile by 50%. If I do sar -v now it still shows all the inodes used. Is this a problem or is it normal?

08:54:32 text-sz ov proc-sz ov inod-sz ov file-sz ov
08:54:33 N/A N/A 193/700 0 2500/2500 0 1132/3010 0

Thanks,

John.

[Stefan Farrelly · Accepted solution]

The inod-sz field is sort of a cache, it will fill up as many as you make available to it so you should always expect it to show all used. All our servers do. Perfectly normal.

[John Flanagan]

Thanks Stefan,

If this behaves like a cache is there a good sizing guidline?

John.

[Trond Haugen]

ninode only sizes the inode-cache used for HFS filesystems. Normally only /stand is HFS. The inode table used for JFS starts at 50% of ninode and will grow to 150%.
It is not recomended to set nonode larger than 4096 as larger values wil not be efficient due to the algorithm of accessing it.

Regards,
Trond