Re: Advice about ext3, please (An experiment & results)

2009-03-18 Thread Stefan Monnier
>>> > I was thinking to let my firewall >>> > run on a CF drive. The last one served for 10years, so ... >>> Your firewall can probably run with near-0 writes (or even with exactly >>> 0 writes), so your CF will easily last centuries. >> Especially if you can use a syslogd on another machine. Or u

Re: Advice about ext3, please (An experiment & results)

2009-03-18 Thread Emanoil Kotsev
Richard Hector wrote: > On Tue, 2009-03-17 at 21:38 -0400, Stefan Monnier wrote: >> > I was thinking to let my firewall >> > run on a CF drive. The last one served for 10years, so ... >> >> Your firewall can probably run with near-0 writes (or even with exactly >> 0 writes), so your CF will easil

Re: Advice about ext3, please (An experiment & results)

2009-03-17 Thread Richard Hector
On Tue, 2009-03-17 at 21:38 -0400, Stefan Monnier wrote: > > I was thinking to let my firewall > > run on a CF drive. The last one served for 10years, so ... > > Your firewall can probably run with near-0 writes (or even with exactly > 0 writes), so your CF will easily last centuries. Especially

Re: Advice about ext3, please (An experiment & results)

2009-03-17 Thread Stefan Monnier
>>> an issue with the flash drives is their life cycle. they support about >>> 10 writes or so in average - there was article I read recently >> For large enough drives, 10 writes will take several years >> of constant write access. So I wouldn't worry about it. > Well several years is not

Re: Advice about ext3, please (An experiment & results)

2009-03-16 Thread Emanoil Kotsev
Stefan Monnier wrote: >> an issue with the flash drives is their life cycle. they support about >> 10 writes or so in average - there was article I read recently > > For large enough drives, 10 writes will take several years > of constant write access. So I wouldn't worry about it. > >

Re: Advice about ext3, please (An experiment & results)

2009-03-13 Thread Stefan Monnier
> an issue with the flash drives is their life cycle. they support about > 10 writes or so in average - there was article I read recently For large enough drives, 10 writes will take several years of constant write access. So I wouldn't worry about it. Stefan -- To UNSUBSCR

Re: Advice about ext3, please (An experiment & results)

2009-03-12 Thread Emanoil Kotsev
Stefan Monnier wrote: > > PS: typically flash memory is made up of "eraseblocks" that are much > larger than a disk block, so depending on the way your flash key works, > writing a single block (512bytes) of your disk may end up doing "read > the surrounding eraseblock; erase it, rewrite it with

Re: Advice about ext3, please (An experiment & results)

2009-03-11 Thread Stefan Monnier
>> So, yes, unplugging your USB key while it's still mounted is to be >> avoided, and even more so while it's being written to. > The OP asked about about a USB external HDD, not a key. I have not > tested the theory, but I have always understood that keys are > particularly vulnerable. To phy

Re: Advice about ext3, please (An experiment & results)

2009-03-11 Thread Johannes Wiedersich
Lisi Reisz wrote: > On Wednesday 11 March 2009 17:43:33 Johannes Wiedersich wrote: >> Lisi Reisz wrote: >>> I have not tested the >>> theory, but I have always understood that keys are particularly >>> vulnerable. To physical damage if pulled out prematurely, not just damage >>> to the filesystem.

Re: Advice about ext3, please (An experiment & results)

2009-03-11 Thread Lisi Reisz
On Wednesday 11 March 2009 17:43:33 Johannes Wiedersich wrote: > Lisi Reisz wrote: > > I have not tested the > > theory, but I have always understood that keys are particularly > > vulnerable. To physical damage if pulled out prematurely, not just damage > > to the filesystem. > > Why so? As I say

Re: Advice about ext3, please (An experiment & results)

2009-03-11 Thread Johannes Wiedersich
Lisi Reisz wrote: > I have not tested the > theory, but I have always understood that keys are particularly vulnerable. > To physical damage if pulled out prematurely, not just damage to the > filesystem. Why so? Johannes -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org wi

Re: Advice about ext3, please (An experiment & results)

2009-03-11 Thread Lisi Reisz
On Wednesday 11 March 2009 17:15:44 Stefan Monnier wrote: > So, yes, unplugging your USB key while it's still mounted is to be > avoided, and even more so while it's being written to. The OP asked about about a USB external HDD, not a key. I have not tested the theory, but I have always understo

Re: Advice about ext3, please (An experiment & results)

2009-03-11 Thread Stefan Monnier
> The message doesn't -tell- you what to do, but what I think one should > do is plug in the USB drive again and do fsck on the device. When fsck > runs, in immediately reruns the journal and fixes metadata > inconsistencies. Mounting the device would have done the same thing (even if mounted read

Re: Advice about ext3, please (An experiment & results)

2009-03-09 Thread Paul E Condon
On 2009-03-09_11:19:38, Stefan Monnier wrote: > > Does anyone here power off their computer without first shutting it down? > > Maybe, but after having to spend time repairing the system and/or rebuilding > > it or losing data they most likely don't anymore. > > Even if you're careful, you'll stil