Re: [Samba] what's the best filesystem

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James Watkins

6 Oct 2005 6 Oct '05

09:58

Duncan Robertson wrote:

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I have had bad experiences with reiser in the past as well, however that was a very long time ago - though the experiences were bad enough that I haven't been tempted to try it again.

This thread is slightly worrying (I'm using reiser), what kind of problems did you encounter? Did it 'eat files' as a previous post mentioned? James.

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Kevanf1

6 Oct 6 Oct

10:04

New subject: [SLE] Re: [Samba] what's the best filesystem

On 06/10/05, James Watkins wrote:

...

Duncan Robertson wrote:

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I have had bad experiences with reiser in the past as well, however that was a very long time ago - though the experiences were bad enough that I haven't been tempted to try it again.

This thread is slightly worrying (I'm using reiser), what kind of problems did you encounter? Did it 'eat files' as a previous post mentioned?

James.

This is Reiser 4 that is claimed to be unstable, James. If you are using an earlier incarnation I wouldn't worry :-) -- ============================================== I am only human, please forgive me if I make a mistake it is not deliberate. ============================================== Take care. Kevan Farmer 34 Hill Street Cheslyn Hay Staffordshire WS6 7HR

Michael W Cocke

10:32

New subject: [SLE] Re: [Samba] what's the best filesystem

On Thu, 6 Oct 2005 11:04:51 +0100, you wrote:

...

On 06/10/05, James Watkins wrote:

...
Duncan Robertson wrote:

...
I have had bad experiences with reiser in the past as well, however that was a very long time ago - though the experiences were bad enough that I haven't been tempted to try it again.

This thread is slightly worrying (I'm using reiser), what kind of problems did you encounter? Did it 'eat files' as a previous post mentioned?

James.

This is Reiser 4 that is claimed to be unstable, James. If you are using an earlier incarnation I wouldn't worry :-)

On the contrary - several people, myself included, have had serious stability issues with Reiser 3. The longest I ever had a Reiser 3 filesystem 'hold together' was about 4 weeks. There are others in here who have had similar experiences. HOWEVER - it's a long way from being everyone. There's really no way to predict if you're going to trip whatever the problem is. My suggestion, based on what I did when I tried Reiser and how it worked out - do backups every 12 hours for the first month. If your filesystem goes bang, restore to an ext3 filesystem. 8-)> YMMV. Mike- P.S. IMHO, I didn't see enough performance improvement over ext3 on my servers to warrant really beating things up to make Reiser work. YMMV there also. MC -- Mornings: Evolution in action. Only the grumpy will survive. -- Please note - Due to the intense volume of spam, we have installed site-wide spam filters at catherders.com. If email from you bounces, try non-HTML, non-encoded, non-attachments.

Clayton

10:45

New subject: [SLE] Re: [Samba] what's the best filesystem

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On the contrary - several people, myself included, have had serious stability issues with Reiser 3. The longest I ever had a Reiser 3 filesystem 'hold together' was about 4 weeks.

Yet... I've been using Reiser for a few years now (on various machines, environments and loads) and never had a problem with it... it's been rock solid stable and I've been much much happier with it over ext3. C.

Jack Malone

11:10

New subject: [SLE] Re: [Samba] what's the best filesystem

At 05:45 AM 10/6/2005, Clayton wrote:

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On the contrary - several people, myself included, have had serious stability issues with Reiser 3. The longest I ever had a Reiser 3 filesystem 'hold together' was about 4 weeks.

Yet... I've been using Reiser for a few years now (on various machines, environments and loads) and never had a problem with it... it's been rock solid stable and I've been much much happier with it over ext3. I too have to agree that Reiser 3 has been stable for me on my servers at work. Not that they rte being hit that hard just serving up 28 workstations an 8 heavenly used printer. no problems at all.

William Gallafent

10:48

New subject: [SLE] Re: [Samba] what's the best filesystem

On Thursday 06 October 2005 11:32, Michael W Cocke wrote:

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On the contrary - several people, myself included, have had serious stability issues with Reiser 3. The longest I ever had a Reiser 3 filesystem 'hold together' was about 4 weeks. There are others in here who have had similar experiences.

I had hardware problems (PCI bus saturation leading to lost data with AMD 760MP chipset and (I think - it was a long time ago) Promise ATA-133 PCI card, which caused filesystem corruption, and consequent stability problems which I initially blamed on the FS. I only heard about the problem with the 760MP chipset later, which was almost certainly responsible. (I can't find the specific conversation I had on this matter ...) This corruption occured on a ReiserFS filesystem on a software RAID0 array, but can't be blamed on ReiserFS itself, since the hardware was the broken part. Recovery was fairly painful, but I got most of the data back with a day's work. I don't have a comparable experience with another FS, so can't say how much easier / harder the recovery would have been there, but I must admit that it looked pretty worrying for a while. The same machine has been rock solid since (once I put the drives on the onboard ATA-100 controller, and turned AGP down from 4x to 2x), still using ReiserFS (I think it runs SuSE 9.1 at the moment, though I haven't used it for a while ...) -- Bill

L. Mark Stone

13:33

New subject: [SLE] Re: [Samba] what's the best filesystem

On Thursday, October 6, 2005 6:48 am, William Gallafent wrote:

...

...
On the contrary - several people, myself included, have had serious stability issues with Reiser 3.

We had a server barf on a Reiser3 file system on a RAID5 array, and it was unrecoverable. After we rebuilt it with ext3, one month later the SCSI RAID controller died, so I suspect it was much less Reiser's fault than hardware. Software can only perform as well as the hardware on which it runs, so just be sure your hardware is in good shape. We have a busy mail server running on Reiser and have had no issues, even when replacing failed disks in the RAID array (no downtime). Having said that, my understanding from the last time I Googled this stuff is that ext3 journals capture more metadata than Reiser3, so (theoretically), you should have more opportunities to recover fully from a bad file system error with ext3 than with Reiser3, at the cost of some performance in writing that extra metadata. Bottom Line is we have no preference between the two, have tried building servers with both and probably because we insist on using top-quality server hardware, we've had only one show-stopping issue (with Reiser3) that was probably more due to hardware going bad than anything else. End Note: When the SCSI RAID controller died, we replaced it with an identical unit, turned the server on and SuSE SLES9 booted just fine with just a few transactions replayed. It's been up for about a year since, rebooted only for kernel updates. YMMV, Mark -- _________________________________________________________ A Message From... L. Mark Stone Reliable Networks of Maine, LLC "We manage your network so you can manage your business" 477 Congress Street Portland, ME 04101 Tel: (207) 772-5678 Web: http://www.rnome.com This email was sent from Reliable Networks of Maine LLC. It may contain information that is privileged and confidential. If you suspect that you were not intended to receive it, please delete it and notify us as soon as possible. Thank you.

Herman Knief

13:42

New subject: [SLE] Re: [Samba] what's the best filesystem

I've been running ReiserFS since '99... I've only ever had one issue with a file system getting corrupted and having to rebuild. The Issue was failing hardware. Reiser has been rock solid otherwise and I use it pretty much everywhere I can... with the exception of large DB systems where I tend to use XFS. - Herman L. Mark Stone wrote:

...

On Thursday, October 6, 2005 6:48 am, William Gallafent wrote:

...
...
On the contrary - several people, myself included, have had serious stability issues with Reiser 3.

We had a server barf on a Reiser3 file system on a RAID5 array, and it was unrecoverable. After we rebuilt it with ext3, one month later the SCSI RAID controller died, so I suspect it was much less Reiser's fault than hardware.

Software can only perform as well as the hardware on which it runs, so just be sure your hardware is in good shape. We have a busy mail server running on Reiser and have had no issues, even when replacing failed disks in the RAID array (no downtime).

Having said that, my understanding from the last time I Googled this stuff is that ext3 journals capture more metadata than Reiser3, so (theoretically), you should have more opportunities to recover fully from a bad file system error with ext3 than with Reiser3, at the cost of some performance in writing that extra metadata.

Bottom Line is we have no preference between the two, have tried building servers with both and probably because we insist on using top-quality server hardware, we've had only one show-stopping issue (with Reiser3) that was probably more due to hardware going bad than anything else.

End Note: When the SCSI RAID controller died, we replaced it with an identical unit, turned the server on and SuSE SLES9 booted just fine with just a few transactions replayed. It's been up for about a year since, rebooted only for kernel updates.

YMMV, Mark

William Gallafent

13:57

New subject: [SLE] Re: [Samba] what's the best filesystem

On Thursday 06 October 2005 14:33, L. Mark Stone wrote:

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On Thursday, October 6, 2005 6:48 am, William Gallafent wrote:

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On the contrary - several people, myself included, have had serious stability issues with Reiser 3.

(Er, actually, I didn't. On Thursday 06 October 2005 11:32, Michael W Cocke wrote that, to which I replied that my only ReiserFS problems had been due to underlying hardware faults! Just to keep the record straight...) -- Bill

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Clayton
Herman Knief
Jack Malone
James Watkins
Kevanf1
L. Mark Stone
Michael W Cocke
William Gallafent