Re: Help with recover data

2012-06-04 Thread Stefan Behrens
What have you done? Why do you need to recover data? What happened? A power failure? A kernel crash? On Tue, 29 May 2012 18:14:53 -0400, Maxim Mikheev wrote: I recently decided to use btrfs. It works perfectly for a week even under heavy load. Yesterday I destroyed backups as cannot afford to

Re: Help with recover data

2012-06-04 Thread Maxim Mikheev
It was a kernel panic from btrfs. I had around 40 parallel processes of reading/writing. On 06/04/2012 08:24 AM, Stefan Behrens wrote: What have you done? Why do you need to recover data? What happened? A power failure? A kernel crash? On Tue, 29 May 2012 18:14:53 -0400, Maxim Mikheev wrote:

Re: Help with recover data

2012-06-04 Thread Maxim Mikheev
By the way, If data will be recovered I can easily reproduce crash situation. So it can be real-life heavy load test On 06/04/2012 08:24 AM, Stefan Behrens wrote: What have you done? Why do you need to recover data? What happened? A power failure? A kernel crash? On Tue, 29 May 2012

Re: Help with recover data

2012-06-04 Thread Stefan Behrens
On Mon, 04 Jun 2012 08:26:43 -0400, Maxim Mikheev wrote: It was a kernel panic from btrfs. I had around 40 parallel processes of reading/writing. Do you have a stack trace for this kernel panic, something with the term BUG, WARNING and/or Call Trace in /var/log/kern.log or /var/log/syslog (or

Re: Help with recover data

2012-06-04 Thread Maxim Mikheev
After looking on Kernel.log, looks like I had raid card failure and data was not stored properly on one of disks (/dev/sde). Btrfs didn't recognized disk failure and keep trying to write data until reboot. Some other tests after reboot shows that /dev/sde has generation 9095 and other 4 disks

Re: Help with recover data

2012-06-04 Thread Stefan Behrens
On Mon, 04 Jun 2012 10:08:54 -0400, Maxim Mikheev wrote: Disks were connected to RocketRaid 2760 directly as JBOD. There is no LVM, MD or encryption. I used plain disks directly. The file system was 55% full (1.7TB from 3TB for each disk). Logs are attached. The error happens at May 29,

Re: Help with recover data

2012-06-04 Thread Maxim Mikheev
Can I roll back to 9095, as all disks has 9095? How can I send this file to the mailing list? On 06/04/2012 11:02 AM, Stefan Behrens wrote: On Mon, 04 Jun 2012 10:08:54 -0400, Maxim Mikheev wrote: Disks were connected to RocketRaid 2760 directly as JBOD. There is no LVM, MD or encryption. I

Re: Help with recover data

2012-06-04 Thread Stefan Behrens
On Mon, 04 Jun 2012 11:08:36 -0400, Maxim Mikheev wrote: How can I send this file to the mailing list? Using web space, e.g. http://pastebin.com/ -- To unsubscribe from this list: send the line unsubscribe linux-btrfs in the body of a message to majord...@vger.kernel.org More majordomo info at

Re: Help with recover data

2012-06-04 Thread Maxim Mikheev
pastebin.com has limit 500K I put file here: http://www.4shared.com/archive/I8cU3K43/kernlog1.html? On 06/04/2012 11:11 AM, Stefan Behrens wrote: On Mon, 04 Jun 2012 11:08:36 -0400, Maxim Mikheev wrote: How can I send this file to the mailing list? Using web space, e.g. http://pastebin.com/

Re: Help with recover data

2012-06-04 Thread Maxim Mikheev
Is any chance to fix it and recover data after such failure? On 06/04/2012 11:02 AM, Stefan Behrens wrote: On Mon, 04 Jun 2012 10:08:54 -0400, Maxim Mikheev wrote: Disks were connected to RocketRaid 2760 directly as JBOD. There is no LVM, MD or encryption. I used plain disks directly. The

Re: Help with recover data

2012-06-04 Thread Ryan C. Underwood
On Mon, Jun 04, 2012 at 05:02:26PM +0200, Stefan Behrens wrote: According to the kern.1.log file that you have sent (which is not visible on the mailing list because it exceeded the 100,000 chars limit of vger.kernel.org), a rebalance operation was active when the disks or the RAID

Help with recover data

2012-05-29 Thread Maxim Mikheev
Hi Everyone, I recently decided to use btrfs. It works perfectly for a week even under heavy load. Yesterday I destroyed backups as cannot afford to have ~10TB in backups. I decided to switch on Btrfs because it was announced that it stable already I need to recover ~5TB data, this data is

Re: Help with recover data

2012-05-29 Thread Felix Blanke
On 5/30/12 12:14 AM, Maxim Mikheev wrote: Hi Everyone, I recently decided to use btrfs. It works perfectly for a week even under heavy load. Yesterday I destroyed backups as cannot afford to have ~10TB in backups. I decided to switch on Btrfs because it was announced that it stable already I

Re: Help with recover data

2012-05-29 Thread cwillu
On Tue, May 29, 2012 at 5:14 PM, Felix Blanke felixbla...@gmail.com wrote: On 5/30/12 12:14 AM, Maxim Mikheev wrote: Hi Everyone, I recently decided to use btrfs. It works perfectly for a week even under heavy load. Yesterday I destroyed backups as cannot afford to have ~10TB in backups.