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this post was submitted on 06 Sep 2023
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Sysadmin pro tip: Keep a 1-10GB file of random data named DELETEME on your data drives. Then if this happens you can get some quick breathing room to fix things.
Also, set up alerts for disk space.
Even better, cron job every 5 mins and if total remaining space falls to 5% auto delete the file and send a message to sys admin
Sends a message and gets the services ready for potential shutdown. Or implements a rate limit to keep the service available but degraded.
Also, if space starts decreasing much more rapidly than normal.
At that point just set the limit a few gig higher and don't have the decoy file at all