Re: [RFC] btrfs auto snapshot

2012-02-23 Thread Fajar A. Nugraha
On Thu, Aug 18, 2011 at 12:38 AM, Matthias G. Eckermann m...@suse.com wrote: Ah, sure. Sorry.  Packages for blocxx for:        Fedora_14       Fedora_15        RHEL-5          RHEL-6        SLE_11_SP1        openSUSE_11.4   openSUSE_Factory are available in the openSUSE buildservice at:  

Re: 3.3 restripe between different raid levels

2012-02-23 Thread Ilya Dryomov
On Wed, Feb 22, 2012 at 07:14:44PM +, Alex wrote: [Referring to https://lkml.org/lkml/2012/1/17/381], and perhaps I'm a bit previous, but what are the command sequence to change the raid levels? Wouldn't mind being pointed to git manual if better for you. Look at

Re: Is there any data recovery tool?

2012-02-23 Thread qasdfgtyuiop
OK. On Wed, Feb 22, 2012 at 8:58 PM, Duncan 1i5t5.dun...@cox.net wrote: qasdfgtyuiop posted on Tue, 21 Feb 2012 20:11:06 +0800 as excerpted: I'm using GNU/linux with btrfs root. My filesystem is created with command mkfs.btrfs /dev/sda .  Today I'm trying to install Microsoft Windows 7 on

Re: [PATCH 1/2] treewide: fix memory corruptions when TASK_COMM_LEN != 16

2012-02-23 Thread Jan Engelhardt
On Thursday 2012-02-23 10:57, Andrew Morton wrote: But there's more, 24931 ?S 0:00 \_ [btrfs-endio-met] \_ [kconservative/5] \_ [ext4-dio-unwrit] [with a wondersome patch:] $ grep Name /proc/{29431,29432}/stat*

Re: [RFC] btrfs auto snapshot

2012-02-23 Thread Anand Jain
autosnap code is available either end of this week or early next week and what you will notice is autosnap snapshots are named using uuid. Main reason to drop time-stamp based names is that, - test (clicking on Take-snapshot button) which took more than one snapshot per second was

Re: 3.3 restripe between different raid levels

2012-02-23 Thread Alex
Thank you very much Ilya. -- 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 http://vger.kernel.org/majordomo-info.html

Re: [RFC] btrfs auto snapshot

2012-02-23 Thread Hubert Kario
On Thursday 23 of February 2012 20:02:38 Anand Jain wrote: autosnap code is available either end of this week or early next week and what you will notice is autosnap snapshots are named using uuid. Main reason to drop time-stamp based names is that, - test (clicking on

Re: [PATCH] Btrfs: clear the extent uptodate bits during parent transid failures

2012-02-23 Thread Chris Mason
On Thu, Feb 23, 2012 at 10:12:26AM +0800, Liu Bo wrote: On 02/23/2012 01:43 AM, Chris Mason wrote: Normally I just toss patches into git, but this one is pretty subtle and I wanted to send it around for extra review. QA at Oracle did a test where they unplugged one drive of a btrfs raid1

Re: [PATCH 1/2] treewide: fix memory corruptions when TASK_COMM_LEN != 16

2012-02-23 Thread Andrew Morton
On Thu, 23 Feb 2012 12:19:28 +0100 (CET) Jan Engelhardt jeng...@medozas.de wrote: On Thursday 2012-02-23 10:57, Andrew Morton wrote: But there's more, 24931 ?S 0:00 \_ [btrfs-endio-met] \_ [kconservative/5]

Re: [PATCH 1/2] treewide: fix memory corruptions when TASK_COMM_LEN != 16

2012-02-23 Thread Jan Engelhardt
On Thursday 2012-02-23 18:30, Andrew Morton wrote: Teach ps(1) to look in /proc/pid/status for kernel threads? To what end? The name in /proc/pid/status was also limited to TASK_COMM_LEN. -- To unsubscribe from this list: send the line unsubscribe linux-btrfs in the body of a message to

Strange prformance degradation when COW writes happen at fixed offsets

2012-02-23 Thread Nik Markovic
Hi, My kernel version is 32-bit 3.2.0-rc5 and using btrfs-tools 0.19 I was having performance issues with BTRFS with fragmentation and HDDs, so I decided to switch to an SSD to see if these would go away. Performance was much better but at times, I would see a freeze happen which I can't really

Re: Set nodatacow per file?

2012-02-23 Thread dima
On 02/13/2012 04:17 PM, Ralf-Peter Rohbeck wrote: Hello, is it possible to set nodatacow on a per-file basis? I couldn't find anything. If not, wouldn't that be a great feature to get around the performance issues with VM and database storage? Of course cloning should still cause COW. Hello,

Re: git resources

2012-02-23 Thread Anand Jain
(When we have this I shall update the btrfs wiki) As promised an article was posted here sometime back. Writing patch for btrfs http://btrfs.ipv5.de/index.php?title=Writing_patch_for_btrfs It was long waiting in my mail draft as kernel.org was down sorry for the delay. -Anand --

Re: [RFC] btrfs auto snapshot

2012-02-23 Thread Anand Jain
Thanks for the inputs. there is no clear winner as of now. Let me keep the uuid for now, if more sysadmin feel timestamp is better we could device it that way. -Anand -- To unsubscribe from this list: send the line unsubscribe linux-btrfs in the body of a message to

Re: [RFC] btrfs auto snapshot

2012-02-23 Thread Fahrzin Hemmati
I'd like to vote for timestamp/timestamp-uuid as a sysadmin. The timestamp allows for easy conversion from clients' wants to actual commands: I need my data from two days ago is easy when I have timestamps to use. On 2/23/2012 10:05 PM, Anand Jain wrote: Thanks for the inputs. there is

Re: Strange prformance degradation when COW writes happen at fixed offsets

2012-02-23 Thread Duncan
Nik Markovic posted on Thu, 23 Feb 2012 20:31:02 -0600 as excerpted: I noticed a few errors in the script that I used. I corrected it and it seems that degradation is occurring even at fully random writes: I don't have an ssd, but is it possible that you're simply seeing erase- block related