Thanks Chris, To my shame it turns out darkling didn't drop off IRC after all; I'm new to all this and learning quickly that I need to sit on my hands. I admit despite darkling's suggestion that my usertools are probably fine I pulled down a newer kernel from elrepo so currently I'm running 4.1.1-1.el7.elrepo.x86_64
I started with 4.0.2-1.el7.elrepo.x86_64 I also do have btrfs-progs 4.1 that I got from git. Here is the 4.0 output [root@san01 btrfs-progs]# btrfs check /dev/sdc checksum verify failed on 21364736 found E4E3BDB6 wanted 00000000 checksum verify failed on 21364736 found E4E3BDB6 wanted 00000000 checksum verify failed on 21364736 found EC809498 wanted 0863292E checksum verify failed on 21364736 found 925303CE wanted 09150E74 checksum verify failed on 21364736 found 925303CE wanted 09150E74 bytenr mismatch, want=21364736, have=1065943040 Couldn't read chunk tree Couldn't open file system Here is the 4.1 output [root@san01 btrfs-progs]# ./btrfs check /dev/sdc checksum verify failed on 21364736 found E4E3BDB6 wanted 00000000 checksum verify failed on 21364736 found E4E3BDB6 wanted 00000000 checksum verify failed on 21364736 found EC809498 wanted 0863292E checksum verify failed on 21364736 found 925303CE wanted 09150E74 checksum verify failed on 21364736 found 925303CE wanted 09150E74 bytenr mismatch, want=21364736, have=1065943040 Couldn't read chunk tree Couldn't open file system Finally, before I learned of this mailing list I started a run of btrfs rescue chunk-recover [root@san01 btrfs-progs]# ./btrfs rescue chunk-recover -v /dev/sdc I can see now through iostat that all 10 drives are reading as fast as they can and my understanding is this will take a long time, but I've since learned (not only that darkling was still alive on IRC) that this probably won't solve my problem. Regards, Donald (seijirou) On Wed, Jul 1, 2015 at 10:50 AM, Chris Murphy <li...@colorremedies.com> wrote: > btrfs-progs version is 4.0, what is the kernel versions you've tried > to mount with? > > I suggest running btrfs check (without --repair) and including the > full output. There are a lot of changes in btrfs-progs 4.1, but off > hand I don't know that they'd affect btrfs check results. > > > Chris Murphy > -- > 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 -- 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
