Re: [SLUG] recovering xfs

2009-05-15 Thread jam
On Friday 15 May 2009 21:03:06 slug-requ...@slug.org.au wrote: Lessons learnt: - a journalling file system is bigger than what you see,  3Tb is really 3.3Tb when doing a direct copy. - Get lots of harddisk in the beginning.   750G drives really only give you 698G.  It is annoying to

Re: [SLUG] recovering xfs

2009-05-15 Thread Daniel Pittman
jam j...@tigger.ws writes: On Friday 15 May 2009 21:03:06 slug-requ...@slug.org.au wrote: Lessons learnt: - a journalling file system is bigger than what you see,  3Tb is really 3.3Tb when doing a direct copy. - Get lots of harddisk in the beginning.   750G drives really only

Re: [SLUG] recovering xfs

2009-05-14 Thread foskey
Quoting Adrian Chadd adr...@creative.net.au: On Thu, May 14, 2009, fos...@tpg.com.au wrote: Still working on this, the whole thing appeared to lock up and we have rebooted.We have now replaced a drive in the raid and hopefully this will work better. Of course this is going to take

Re: [SLUG] recovering xfs

2009-05-14 Thread Daniel Bush
2009/5/15 fos...@tpg.com.au Quoting Adrian Chadd adr...@creative.net.au: On Thu, May 14, 2009, fos...@tpg.com.au wrote: ... Lessons learnt: - a journalling file system is bigger than what you see, 3Tb is really 3.3Tb when doing a direct copy. - Get lots of harddisk in the

[SLUG] recovering xfs

2009-05-13 Thread Ken Foskey
I have a very large xfs file system that is corrupt and there is an IO error in the middle of the file system, xfs_repair crashes. A bit of reading and I have a solution, just thought I would put it out there in case I have forgotten something. Booting xeon server with 32 bit Ubuntu live CD.

Re: [SLUG] recovering xfs

2009-05-13 Thread Tony Sceats
I'm actually not sure I'm reading this right, but I don't think you want to dd to an NFS share? Maybe you meant XFS should match correctly? If you're trying to do it over a network, I would have thought you'd have more luck by piping dd through an nc connection, then dd back to a disk on the

Re: [SLUG] recovering xfs

2009-05-13 Thread Ken Foskey
Thanks for replying. nc in your command simply replaces ssh, so I think this is the same thing. I am not using nfs, I cannot mount anything so it is raw, going logical volume to logical volume. They are slightly different sizes, hope that will not kill anything. The server that is being

Re: [SLUG] recovering xfs

2009-05-13 Thread Tony Sceats
ah, it appears as though I missed the close quote on your ssh command when I read it last night, and I also saw NFS, which was why I was a bit confused as to what you were trying :) On Wed, May 13, 2009 at 9:56 PM, Ken Foskey fos...@tpg.com.au wrote: Thanks for replying. nc in your command

Re: [SLUG] recovering xfs

2009-05-13 Thread foskey
Problem dd sat and looped on a single point last night. I have downloaded a statically linked version of dd_rescue and I am now trying this. Fingers crossed. ssh r...@server '/root/dd_rescue /dev/vg1/lv1 -' | cat /dev/vg1/lv1 It is coming up with this error though: dd_rescue:

Re: [SLUG] recovering xfs

2009-05-13 Thread Adrian Chadd
And what is being logged in dmesg? Your kernel should be spewing a whole lot of error messages if your physical media is returning errors. Adrian On Thu, May 14, 2009, fos...@tpg.com.au wrote: Problem dd sat and looped on a single point last night. I have downloaded a statically

Re: [SLUG] recovering xfs

2009-05-13 Thread foskey
Quoting Adrian Chadd adr...@creative.net.au: And what is being logged in dmesg? Your kernel should be spewing a whole lot of error messages if your physical media is returning errors. Still working on this, the whole thing appeared to lock up and we have rebooted.We have now replaced a

Re: [SLUG] recovering xfs

2009-05-13 Thread Adrian Chadd
On Thu, May 14, 2009, fos...@tpg.com.au wrote: Still working on this, the whole thing appeared to lock up and we have rebooted.We have now replaced a drive in the raid and hopefully this will work better. Of course this is going to take ages to rebuild. lets hope you don't throw another