Date: Mon, 6 Jan 2003 06:47:45 +0100 From: Mark <admin@asarian-host.net> To: "Anti" <fearow@attbi.com> Cc: <freebsd-questions@freebsd.org> Subject: Re: flush? Message-ID: <200301060547.H065LMS20091@asarian-host.net> References: <200301052107.H05L7PS51182@asarian-host.net> <20030105211245.619d305e.fearow@attbi.com>
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Nope, "sync" won't do it. ;) I can sync all I want, but df (and dd,
effectively, by adding the "deleted" size to its image) keeps reporting the
added size (which is considerable: about 4 G extra) to the partition, and
only falls back to the true value after a while. Besides, being in
disk-cache would not itself adversely affect dd.
I managed to "solve" it now by just adding a 5 min sleep period in-between
dumps, but, obviously, that is a crappy solution.
- Mark
System Administrator Asarian-host.org
---
"If you were supposed to understand it,
we wouldn't call it code." - FedEx
----- Original Message -----
From: "Anti" <fearow@attbi.com>
To: "Mark" <admin@asarian-host.net>
Cc: <freebsd-questions@freebsd.org>
Sent: Monday, January 06, 2003 4:12 AM
Subject: Re: flush?
> sync?
>
> `Anti`
>
> On Sun, 5 Jan 2003 22:07:19 +0100
> Mark <admin@asarian-host.net> wrote:
>
> > When I use dump to make a backup, I noticed that a very large file
> > (several G), which had just been moved off the partition (several
> > seconds before), seems to have been backup-ed by dump after all. Or, I
> > should say, its size seems to be added to the dump-file, making my
> > backup of that partition several G larger than it should be.
> >
> > This must be some sort of caching problem, as I already saw this once
> > before, on using df, where df, for a while thereafter, still shows the
> > size of a partition occupied after deleting a large file, only to drop
> > back to its normal indication a few seconds later.
> >
> > Or it could be that dump, while the file has already been deleted, just
> > grows extra large because of all those blocks that have been used. :(
> >
> > Is there a way I can flush this cache, so dump will only use files that
> > actually still exist?
> >
> > Thanks.
> >
> > - Mark
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