From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1OIg4j-0001jW-TV for garchives@archives.gentoo.org; Sun, 30 May 2010 10:49:02 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 9DC0EE081A; Sun, 30 May 2010 10:48:27 +0000 (UTC) Received: from mail.digimed.co.uk (82-69-83-178.dsl.in-addr.zen.co.uk [82.69.83.178]) by pigeon.gentoo.org (Postfix) with ESMTP id 69A95E081A for ; Sun, 30 May 2010 10:48:27 +0000 (UTC) Received: from zaphod.digimed.co.uk (zaphod.digimed.co.uk [192.168.1.1]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by mail.digimed.co.uk (Postfix) with ESMTPSA id 91C7D6E5A1C for ; Sun, 30 May 2010 11:48:26 +0100 (BST) Date: Sun, 30 May 2010 11:48:21 +0100 From: Neil Bothwick To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] rsync to a USB stick Message-ID: <20100530114821.577a00bc@zaphod.digimed.co.uk> In-Reply-To: <20100529075931.5e49c2ce@osage.osagesoftware.com> References: <201005291001.50752.michaelkintzios@gmail.com> <20100529075931.5e49c2ce@osage.osagesoftware.com> Organization: Digital Media Production X-Mailer: Claws Mail 3.7.6cvs9 (GTK+ 2.18.9; x86_64-pc-linux-gnu) X-GPG-Fingerprint: 7260 0F33 97EC 2F1E 7667 FE37 BA6E 1A97 4375 1903 Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/lO774otFXQ/90k38vZRp81l"; protocol="application/pgp-signature" X-Archives-Salt: 656f7d00-f784-4128-89fd-a3fd8e37c827 X-Archives-Hash: 9b7304f11cef9a99f6a46734a725d3a5 --Sig_/lO774otFXQ/90k38vZRp81l Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Sat, 29 May 2010 07:59:31 -0400, David Relson wrote: > Indeed flash drives _do_ have a lifetime. My recollection is that it's > in the thousands of writes if not the hundreds of thousands of writes. > Assuming a life of 1,000 writes and you backup once daily, that's 3 > years of backups. 10,000 writes would be 30 years. Of course if you > backup every hour, 10,000 writes is a year (or so). You're assuming that each backup only writes once, which is far from true. If you mount a drive with the sync option, the FAT is updated for every block you write, so even a single file can cause thousands of writes to the same location. --=20 Neil Bothwick Electrocution, n.: Burning at the stake with all the modern improvements. --Sig_/lO774otFXQ/90k38vZRp81l Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.15 (GNU/Linux) iEYEARECAAYFAkwCQnkACgkQum4al0N1GQO6TACfc2I/xYCZAQkdQhP5+MfXZ0ok uaQAn0kQJ8VpeaeJjuUzVQgqMHAhtJQ+ =juu9 -----END PGP SIGNATURE----- --Sig_/lO774otFXQ/90k38vZRp81l--