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Systematic approach Full FileSystems

Systematic approach Full FileSystems

(OP)
I am attempting to develop a structured approach to dealing with a file system at 100% (or near a threshold).  I know that proper monitoring should prevent that but bear with me.

I am thinking about 2 situations

1.    A file system may have shot up very quickly.  In this case I would run a find command to list all file modified in the last 2 days on that file system and manually assess which one it might be the cause.
2.    A file system may be getting near to a threshold and may go over soon.  I am thinking I would first determine all the directories in that file system (right now I don’t have an easy way to do this), then run a du –hs <directory> on each one to see which ones have the most, then manually dig into each directory recursively looking for old or useless files that can be archived or deleted.

Is there any other suggestion, step or checks that you would do?

RE: Systematic approach Full FileSystems

Here's how I find the directories that are taking up the most space...

CODE

du -kod /export/home | sort -rn | head -20
That would get the 20 top directories by size in the /export/home file system. Replace /export/home with whatever filesystem is filling up or full.

RE: Systematic approach Full FileSystems

Add in a check for core files, sometimes the cause of sudden increases.

RE: Systematic approach Full FileSystems

(OP)
Thanks for the feedback.  I will open the SunSolve account as suggested.

RE: Systematic approach Full FileSystems

Quote (SamBones):

Here's how I find the directories that are taking up the most space...

CODE

du -kod /export/home | sort -rn | head -20

Well, that pretty much renders my dispus script redundant in one fell swoop; how come I never noticed those "o" and "d" options before! blush  Much quicker too!

Annihilannic.

RE: Systematic approach Full FileSystems

And this will find the 20 biggest files in a particular file system...

CODE

find /export/home -mount -type f -exec du -k {} \; | sort -rn | head -20
This doesn't list directory totals, just the files themselves.

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