Date: Fri, 03 Sep 1999 15:41:45 -0400 From: Mitch Collinsworth <mkc@Graphics.Cornell.EDU> To: "Steve Friedrich" <SteveFriedrich@Hot-Shot.com> Cc: "FreeBSD Questions" <freebsd-questions@FreeBSD.ORG> Subject: Re: df inconsistency Message-ID: <199909031941.AA093357706@broccoli.graphics.cornell.edu> In-Reply-To: Your message of "Fri, 03 Sep 1999 15:10:47 EDT." <199909031914.PAA21107@laker.net>
next in thread | previous in thread | raw e-mail | index | archive | help
>df output on my system: >Filesystem 1K-blocks Used Avail Capacity Mounted on >/dev/wd1s1e 1113967 929244 95606 91% /usr > >Problem is that (total blocks) - (used blocks) does not equal >(available blocks) >1113967 - 929244 = 184723 = 83% > >95606/1113967 = 9% (so the inverse is 91%) > >So it appears that 89117 are "unavailable" but not counted as "used". This is intentional. The difference is called MINFREE and is the amount of space reserved from normal users. (After df says you're full, root can continue writing until you're really full.) See newfs(8) and tunefs(8) under -m minfree. The purpose if I remember correctly is to prevent the filesystem from becoming horribly fragmented and slowing to a crawl. >I don't currently have time to pursue this in source code. My daughter >died in a car accident in July and I'm trying to get Florida to bring >charges against the driver and her mother. And I moved back to >Kentucky and am actively looking for work. If no one else can answer >this, I'll get to it in a couple months... I'm sorry about your daughter. I lost a daughter a couple years ago myself. Time helps, a little. Knowing she's now in a better place and in good hands helps more. Someday I'll see her again... -Mitch To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199909031941.AA093357706>