Gentoo Archives: gentoo-user

From: Neil Bothwick <neil@××××××××××.uk>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] rsync to a USB stick
Date: Sun, 30 May 2010 10:49:02
Message-Id: 20100530114821.577a00bc@zaphod.digimed.co.uk
In Reply to: Re: [gentoo-user] rsync to a USB stick by David Relson
1 On Sat, 29 May 2010 07:59:31 -0400, David Relson wrote:
2
3 > Indeed flash drives _do_ have a lifetime. My recollection is that it's
4 > in the thousands of writes if not the hundreds of thousands of writes.
5 > Assuming a life of 1,000 writes and you backup once daily, that's 3
6 > years of backups. 10,000 writes would be 30 years. Of course if you
7 > backup every hour, 10,000 writes is a year (or so).
8
9 You're assuming that each backup only writes once, which is far from
10 true. If you mount a drive with the sync option, the FAT is updated for
11 every block you write, so even a single file can cause thousands of
12 writes to the same location.
13
14
15 --
16 Neil Bothwick
17
18 Electrocution, n.:
19 Burning at the stake with all the modern improvements.

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Replies

Subject Author
Re: [gentoo-user] rsync to a USB stick David Relson <relson@×××××××××××××.com>
[gentoo-user] Re: rsync to a USB stick Grant Edwards <grant.b.edwards@×××××.com>