root@test:~# uname -a Linux ix-s5 4.0.4-040004-generic #201505171336 SMP Sun May 17 17:37:22 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
2015-08-21 1:54 GMT+03:00 Samuel Just <sj...@redhat.com>: > Also, can you include the kernel version? > -Sam > > On Thu, Aug 20, 2015 at 3:51 PM, Samuel Just <sj...@redhat.com> wrote: > > Snapshotting with cache/tiering *is* supposed to work. Can you open a > bug? > > -Sam > > > > On Thu, Aug 20, 2015 at 3:36 PM, Andrija Panic <andrija.pa...@gmail.com> > wrote: > >> This was related to the caching layer, which doesnt support > snapshooting per > >> docs...for sake of closing the thread. > >> > >> On 17 August 2015 at 21:15, Voloshanenko Igor < > igor.voloshane...@gmail.com> > >> wrote: > >>> > >>> Hi all, can you please help me with unexplained situation... > >>> > >>> All snapshot inside ceph broken... > >>> > >>> So, as example, we have VM template, as rbd inside ceph. > >>> We can map it and mount to check that all ok with it > >>> > >>> root@test:~# rbd map cold-storage/0e23c701-401d-4465-b9b4-c02939d57bb5 > >>> /dev/rbd0 > >>> root@test:~# parted /dev/rbd0 print > >>> Model: Unknown (unknown) > >>> Disk /dev/rbd0: 10.7GB > >>> Sector size (logical/physical): 512B/512B > >>> Partition Table: msdos > >>> > >>> Number Start End Size Type File system Flags > >>> 1 1049kB 525MB 524MB primary ext4 boot > >>> 2 525MB 10.7GB 10.2GB primary lvm > >>> > >>> Than i want to create snap, so i do: > >>> root@test:~# rbd snap create > >>> cold-storage/0e23c701-401d-4465-b9b4-c02939d57bb5@new_snap > >>> > >>> And now i want to map it: > >>> > >>> root@test:~# rbd map > >>> cold-storage/0e23c701-401d-4465-b9b4-c02939d57bb5@new_snap > >>> /dev/rbd1 > >>> root@test:~# parted /dev/rbd1 print > >>> Warning: Unable to open /dev/rbd1 read-write (Read-only file system). > >>> /dev/rbd1 has been opened read-only. > >>> Warning: Unable to open /dev/rbd1 read-write (Read-only file system). > >>> /dev/rbd1 has been opened read-only. > >>> Error: /dev/rbd1: unrecognised disk label > >>> > >>> Even md5 different... > >>> root@ix-s2:~# md5sum /dev/rbd0 > >>> 9a47797a07fee3a3d71316e22891d752 /dev/rbd0 > >>> root@ix-s2:~# md5sum /dev/rbd1 > >>> e450f50b9ffa0073fae940ee858a43ce /dev/rbd1 > >>> > >>> > >>> Ok, now i protect snap and create clone... but same thing... > >>> md5 for clone same as for snap,, > >>> > >>> root@test:~# rbd unmap /dev/rbd1 > >>> root@test:~# rbd snap protect > >>> cold-storage/0e23c701-401d-4465-b9b4-c02939d57bb5@new_snap > >>> root@test:~# rbd clone > >>> cold-storage/0e23c701-401d-4465-b9b4-c02939d57bb5@new_snap > >>> cold-storage/test-image > >>> root@test:~# rbd map cold-storage/test-image > >>> /dev/rbd1 > >>> root@test:~# md5sum /dev/rbd1 > >>> e450f50b9ffa0073fae940ee858a43ce /dev/rbd1 > >>> > >>> .... but it's broken... > >>> root@test:~# parted /dev/rbd1 print > >>> Error: /dev/rbd1: unrecognised disk label > >>> > >>> > >>> ========= > >>> > >>> tech details: > >>> > >>> root@test:~# ceph -v > >>> ceph version 0.94.2 (5fb85614ca8f354284c713a2f9c610860720bbf3) > >>> > >>> We have 2 inconstistent pgs, but all images not placed on this pgs... > >>> > >>> root@test:~# ceph health detail > >>> HEALTH_ERR 2 pgs inconsistent; 18 scrub errors > >>> pg 2.490 is active+clean+inconsistent, acting [56,15,29] > >>> pg 2.c4 is active+clean+inconsistent, acting [56,10,42] > >>> 18 scrub errors > >>> > >>> ============ > >>> > >>> root@test:~# ceph osd map cold-storage > >>> 0e23c701-401d-4465-b9b4-c02939d57bb5 > >>> osdmap e16770 pool 'cold-storage' (2) object > >>> '0e23c701-401d-4465-b9b4-c02939d57bb5' -> pg 2.74458f70 (2.770) -> up > >>> ([37,15,14], p37) acting ([37,15,14], p37) > >>> root@test:~# ceph osd map cold-storage > >>> 0e23c701-401d-4465-b9b4-c02939d57bb5@snap > >>> osdmap e16770 pool 'cold-storage' (2) object > >>> '0e23c701-401d-4465-b9b4-c02939d57bb5@snap' -> pg 2.793cd4a3 (2.4a3) > -> up > >>> ([12,23,17], p12) acting ([12,23,17], p12) > >>> root@test:~# ceph osd map cold-storage > >>> 0e23c701-401d-4465-b9b4-c02939d57bb5@test-image > >>> osdmap e16770 pool 'cold-storage' (2) object > >>> '0e23c701-401d-4465-b9b4-c02939d57bb5@test-image' -> pg 2.9519c2a9 > (2.2a9) > >>> -> up ([12,44,23], p12) acting ([12,44,23], p12) > >>> > >>> > >>> Also we use cache layer, which in current moment - in forward mode... > >>> > >>> Can you please help me with this.. As my brain stop to understand what > is > >>> going on... > >>> > >>> Thank in advance! > >>> > >>> > >>> > >>> > >>> > >>> _______________________________________________ > >>> ceph-users mailing list > >>> ceph-users@lists.ceph.com > >>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > >>> > >> > >> > >> > >> -- > >> > >> Andrija Panić > >> > >> _______________________________________________ > >> ceph-users mailing list > >> ceph-users@lists.ceph.com > >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > >> >
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