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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
| commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
| tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /qa/rbd/krbd_parent_overlap.t | |
| parent | Initial commit. (diff) | |
| download | ceph-6d07fdb6bb33b1af39833b850bb6cf8af79fe293.tar.xz ceph-6d07fdb6bb33b1af39833b850bb6cf8af79fe293.zip | |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'qa/rbd/krbd_parent_overlap.t')
| -rw-r--r-- | qa/rbd/krbd_parent_overlap.t | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/qa/rbd/krbd_parent_overlap.t b/qa/rbd/krbd_parent_overlap.t new file mode 100644 index 000000000..3489d83db --- /dev/null +++ b/qa/rbd/krbd_parent_overlap.t @@ -0,0 +1,69 @@ + +For reads, only the object extent needs to be reverse mapped: + + $ rbd create --size 5M img + $ DEV=$(sudo rbd map img) + $ xfs_io -c 'pwrite 0 5M' $DEV >/dev/null + $ sudo rbd unmap $DEV + $ rbd snap create --no-progress img@snap + $ rbd snap protect img@snap + $ rbd clone img@snap cloneimg + $ rbd resize --no-progress --size 12M cloneimg + $ DEV=$(sudo rbd map cloneimg) + $ hexdump $DEV + 0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd + * + 0500000 0000 0000 0000 0000 0000 0000 0000 0000 + * + 0c00000 + $ dd if=$DEV iflag=direct bs=4M status=none | hexdump + 0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd + * + 0500000 0000 0000 0000 0000 0000 0000 0000 0000 + * + 0c00000 + $ sudo rbd unmap $DEV + $ rbd rm --no-progress cloneimg + $ rbd snap unprotect img@snap + $ rbd snap rm --no-progress img@snap + $ rbd rm --no-progress img + +For writes, the entire object needs to be reverse mapped: + + $ rbd create --size 2M img + $ DEV=$(sudo rbd map img) + $ xfs_io -c 'pwrite 0 1M' $DEV >/dev/null + $ sudo rbd unmap $DEV + $ rbd snap create --no-progress img@snap + $ rbd snap protect img@snap + $ rbd clone img@snap cloneimg + $ rbd resize --no-progress --size 8M cloneimg + $ DEV=$(sudo rbd map cloneimg) + $ xfs_io -c 'pwrite -S 0xef 3M 1M' $DEV >/dev/null + $ hexdump $DEV + 0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd + * + 0100000 0000 0000 0000 0000 0000 0000 0000 0000 + * + 0300000 efef efef efef efef efef efef efef efef + * + 0400000 0000 0000 0000 0000 0000 0000 0000 0000 + * + 0800000 + $ sudo rbd unmap $DEV + $ DEV=$(sudo rbd map cloneimg) + $ hexdump $DEV + 0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd + * + 0100000 0000 0000 0000 0000 0000 0000 0000 0000 + * + 0300000 efef efef efef efef efef efef efef efef + * + 0400000 0000 0000 0000 0000 0000 0000 0000 0000 + * + 0800000 + $ sudo rbd unmap $DEV + $ rbd rm --no-progress cloneimg + $ rbd snap unprotect img@snap + $ rbd snap rm --no-progress img@snap + $ rbd rm --no-progress img |