Re: Ideas to reuse filesystem's checksum to enhance dm-raid1/10/5/6?

On Thu, Nov 16, 2017 at 11:47:45AM -0500, Austin S. Hemmelgarn wrote: > > > >At least btrfs can take the advantage of the simplicity of separate layers. > > > >And other filesystem can get a little higher chance to recover its > >metadata if built on dm-raid. > Again, just put dm-integrity below

Re: [PATCH] Btrfs: incremental send, apply asynchronous page cache readahead

Hi, On Wed, Sep 13, 2017 at 02:38:49PM +0800, peterh wrote: > From: Kuanling Huang > > By analyzing the perf on btrfs send, we found it take large > amount of cpu time on page_cache_sync_readahead. This effort > can be reduced after switching to asynchronous one. Overall >

Re: RAID 6 corrupted

On Thu, May 18, 2017 at 06:12:22AM +, Duncan wrote: > Roman Mamedov posted on Thu, 18 May 2017 10:17:19 +0500 as excerpted: > > > On Thu, 18 May 2017 04:09:38 +0200 ??ukasz Wróblewski wrote: > > > >> I will try when stable 4.12 comes out. > >> Unfortunately I do not have a

Re: Is stability a joke? (wiki updated)

On Mon, Sep 12, 2016 at 09:57:17PM +0200, Martin Steigerwald wrote: > Am Montag, 12. September 2016, 18:27:47 CEST schrieb David Sterba: > > On Mon, Sep 12, 2016 at 04:27:14PM +0200, David Sterba wrote: > > > > I therefore would like to propose that some sort of feature / stability > > > > matrix

Re: BTRFS raid 5/6 status

On Thu, Oct 15, 2015 at 07:39:20AM +0200, audio muze wrote: > Thanks Chris > > I should've browsed recent threads, my apologies. Terribly > frustrating though that the issues you refer to aren't documented in > the btrfs wiki. Reading the wiki one is lead to believe that the only > real issue

Re: btrfs receive bigger than original snapshot?

Hi, On Wed, Sep 23, 2015 at 09:41:21AM +0100, Filipe David Manana wrote: > On Tue, Sep 22, 2015 at 9:04 PM, Hugo Mills wrote: > > On Tue, Sep 22, 2015 at 09:52:19PM +0200, carlo von lynX wrote: > >> Hello, it's me again. This time I searched the web to make sure > >> I'm not

Re: [PATCH 4/5] Add reference to BTRFS_SKIP_LVM_SNAPSHOT environment variable.

On Thu, Dec 04, 2014 at 07:24:29PM +0100, Goffredo Baroncelli wrote: Add reference to BTRFS_SKIP_LVM_SNAPSHOT environment viarble in ^^^ a small typo.. should be variable. -- Pasi the btrfs(8) documentation. Signed-off-by:

Re: Triple parity and beyond

On Fri, Nov 22, 2013 at 07:12:39PM +1100, Russell Coker wrote: On Thu, 21 Nov 2013 18:30:49 Stan Hoeppner wrote: I suggest that anyone in the future needing fast random write IOPS is going to move those workloads to SSD, which is steadily increasing in capacity. And I suggest anyone