Re: [gentoo-user] Re: rsync to a USB stick

2010-05-31 Thread Neil Bothwick
On Sun, 30 May 2010 14:20:36 + (UTC), Grant Edwards wrote: 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

[gentoo-user] Re: rsync to a USB stick

2010-05-31 Thread Grant Edwards
On 2010-05-31, Neil Bothwick n...@digimed.co.uk wrote: On Sun, 30 May 2010 14:20:36 + (UTC), Grant Edwards wrote: 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

[gentoo-user] Re: rsync to a USB stick

2010-05-30 Thread Grant Edwards
On 2010-05-30, Neil Bothwick n...@digimed.co.uk wrote: 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

Re: [gentoo-user] Re: rsync to a USB stick

2010-05-30 Thread David Relson
On Sun, 30 May 2010 14:20:36 + (UTC) Grant Edwards wrote: On 2010-05-30, Neil Bothwick n...@digimed.co.uk wrote: 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

[gentoo-user] Re: rsync to a USB stick

2010-05-29 Thread Remy Blank
Mick wrote: Is there a cleverer option I can add to rsync so that it only copies new files, overwrites older versions of the same and only deletes any files or directories that have been deleted from the source directory? See the --modify-window option in the rsync man page. In particular,

Re: [gentoo-user] Re: rsync to a USB stick

2010-05-29 Thread Mick
On Saturday 29 May 2010 11:34:25 Remy Blank wrote: Mick wrote: Is there a cleverer option I can add to rsync so that it only copies new files, overwrites older versions of the same and only deletes any files or directories that have been deleted from the source directory? See the