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Open Source and information security mailing list archives
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Date: Sun, 5 Aug 2007 01:49:26 +0100 From: Alan Cox <alan@...rguk.ukuu.org.uk> To: Claudio Martins <ctpm@....utl.pt> Cc: Jeff Garzik <jeff@...zik.org>, Ingo Molnar <mingo@...e.hu>, Jörn Engel <joern@...fs.org>, Linus Torvalds <torvalds@...ux-foundation.org>, Peter Zijlstra <a.p.zijlstra@...llo.nl>, linux-mm@...ck.org, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, miklos@...redi.hu, akpm@...ux-foundation.org, neilb@...e.de, dgc@....com, tomoki.sekiyama.qu@...achi.com, nikita@...sterfs.com, trond.myklebust@....uio.no, yingchao.zhou@...il.com, richard@....demon.co.uk, david@...g.hm Subject: Re: [PATCH 00/23] per device dirty throttling -v8 > Can you give examples of backup solutions that rely on atime being updated? > I can understand backup tools using mtime/ctime for incremental backups (like > tar + Amanda, etc), but I'm having trouble figuring out why someone would > want to use atime for that. HSM is the usual one, and to a large extent probably why Unix originally had atime. Basically migrating less used files away so as to keep the system disks tidy. Its not something usally found on desktop boxes so it doesn't in anyway argue against the distribution using noatime or relative atime, but on big server boxes it matters - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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