mirror of https://github.com/ceph/ceph
330 lines
8.1 KiB
Perl
330 lines
8.1 KiB
Perl
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Write:
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$ rbd create --size 12M --image-feature layering,deep-flatten img
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$ DEV=$(sudo rbd map img)
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$ xfs_io -c 'pwrite -w 0 12M' $DEV >/dev/null
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$ sudo rbd unmap $DEV
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$ rbd snap create img@snap
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$ rbd snap protect img@snap
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$ rbd clone img@snap cloneimg
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$ rbd snap create cloneimg@snap
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$ DEV=$(sudo rbd map cloneimg)
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$ xfs_io -c 'pwrite -S 0xab -w 6M 1k' $DEV >/dev/null
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$ sudo rbd unmap $DEV
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$ DEV=$(sudo rbd map cloneimg)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0600000 abab abab abab abab abab abab abab abab
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*
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0600400 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ DEV=$(sudo rbd map cloneimg@snap)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ rbd flatten --no-progress cloneimg
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$ rbd snap unprotect img@snap
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$ rbd snap rm --no-progress img@snap
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$ rbd rm --no-progress img
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$ DEV=$(sudo rbd map cloneimg)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0600000 abab abab abab abab abab abab abab abab
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*
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0600400 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ DEV=$(sudo rbd map cloneimg@snap)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ rbd snap rm --no-progress cloneimg@snap
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$ rbd rm --no-progress cloneimg
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Write, whole object:
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$ rbd create --size 12M --image-feature layering,deep-flatten img
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$ DEV=$(sudo rbd map img)
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$ xfs_io -c 'pwrite -w 0 12M' $DEV >/dev/null
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$ sudo rbd unmap $DEV
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$ rbd snap create img@snap
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$ rbd snap protect img@snap
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$ rbd clone img@snap cloneimg
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$ rbd snap create cloneimg@snap
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$ DEV=$(sudo rbd map cloneimg)
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$ xfs_io -d -c 'pwrite -b 4M -S 0xab 4M 4M' $DEV >/dev/null
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$ sudo rbd unmap $DEV
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$ DEV=$(sudo rbd map cloneimg)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0400000 abab abab abab abab abab abab abab abab
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*
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0800000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ DEV=$(sudo rbd map cloneimg@snap)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ rbd flatten --no-progress cloneimg
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$ rbd snap unprotect img@snap
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$ rbd snap rm --no-progress img@snap
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$ rbd rm --no-progress img
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$ DEV=$(sudo rbd map cloneimg)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0400000 abab abab abab abab abab abab abab abab
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*
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0800000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ DEV=$(sudo rbd map cloneimg@snap)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ rbd snap rm --no-progress cloneimg@snap
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$ rbd rm --no-progress cloneimg
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Zeroout:
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$ rbd create --size 12M --image-feature layering,deep-flatten img
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$ DEV=$(sudo rbd map img)
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$ xfs_io -c 'pwrite -w 0 12M' $DEV >/dev/null
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$ sudo rbd unmap $DEV
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$ rbd snap create img@snap
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$ rbd snap protect img@snap
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$ rbd clone img@snap cloneimg
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$ rbd snap create cloneimg@snap
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$ DEV=$(sudo rbd map cloneimg)
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$ fallocate -z -o 6M -l 1k $DEV
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$ sudo rbd unmap $DEV
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$ DEV=$(sudo rbd map cloneimg)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0600000 0000 0000 0000 0000 0000 0000 0000 0000
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*
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0600400 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ DEV=$(sudo rbd map cloneimg@snap)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ rbd flatten --no-progress cloneimg
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$ rbd snap unprotect img@snap
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$ rbd snap rm --no-progress img@snap
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$ rbd rm --no-progress img
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$ DEV=$(sudo rbd map cloneimg)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0600000 0000 0000 0000 0000 0000 0000 0000 0000
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*
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0600400 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ DEV=$(sudo rbd map cloneimg@snap)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ rbd snap rm --no-progress cloneimg@snap
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$ rbd rm --no-progress cloneimg
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Zeroout, whole object:
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$ rbd create --size 12M --image-feature layering,deep-flatten img
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$ DEV=$(sudo rbd map img)
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$ xfs_io -c 'pwrite -w 0 12M' $DEV >/dev/null
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$ sudo rbd unmap $DEV
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$ rbd snap create img@snap
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$ rbd snap protect img@snap
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$ rbd clone img@snap cloneimg
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$ rbd snap create cloneimg@snap
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$ DEV=$(sudo rbd map cloneimg)
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$ fallocate -z -o 4M -l 4M $DEV
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$ sudo rbd unmap $DEV
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$ DEV=$(sudo rbd map cloneimg)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0400000 0000 0000 0000 0000 0000 0000 0000 0000
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*
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0800000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ DEV=$(sudo rbd map cloneimg@snap)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ rbd flatten --no-progress cloneimg
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$ rbd snap unprotect img@snap
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$ rbd snap rm --no-progress img@snap
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$ rbd rm --no-progress img
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$ DEV=$(sudo rbd map cloneimg)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0400000 0000 0000 0000 0000 0000 0000 0000 0000
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*
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0800000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ DEV=$(sudo rbd map cloneimg@snap)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ rbd snap rm --no-progress cloneimg@snap
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$ rbd rm --no-progress cloneimg
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Discard, whole object, empty clone:
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$ rbd create --size 12M --image-feature layering,deep-flatten img
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$ DEV=$(sudo rbd map img)
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$ xfs_io -c 'pwrite -w 0 12M' $DEV >/dev/null
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$ sudo rbd unmap $DEV
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$ rbd snap create img@snap
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$ rbd snap protect img@snap
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$ rbd clone img@snap cloneimg
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$ rbd snap create cloneimg@snap
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$ DEV=$(sudo rbd map cloneimg)
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$ blkdiscard -o 4M -l 4M $DEV
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$ sudo rbd unmap $DEV
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$ DEV=$(sudo rbd map cloneimg)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ DEV=$(sudo rbd map cloneimg@snap)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ rbd flatten --no-progress cloneimg
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$ rbd snap unprotect img@snap
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$ rbd snap rm --no-progress img@snap
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$ rbd rm --no-progress img
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$ DEV=$(sudo rbd map cloneimg)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ DEV=$(sudo rbd map cloneimg@snap)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ rbd snap rm --no-progress cloneimg@snap
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$ rbd rm --no-progress cloneimg
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Discard, whole object, full clone:
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$ rbd create --size 12M --image-feature layering,deep-flatten img
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$ DEV=$(sudo rbd map img)
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$ xfs_io -c 'pwrite -w 0 12M' $DEV >/dev/null
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$ sudo rbd unmap $DEV
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$ rbd snap create img@snap
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$ rbd snap protect img@snap
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$ rbd clone img@snap cloneimg
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$ rbd snap create cloneimg@snap
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$ DEV=$(sudo rbd map cloneimg)
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$ xfs_io -c 'pwrite -S 0xab -w 0 12M' $DEV >/dev/null
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$ blkdiscard -o 4M -l 4M $DEV
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$ sudo rbd unmap $DEV
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$ DEV=$(sudo rbd map cloneimg)
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$ hexdump $DEV
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0000000 abab abab abab abab abab abab abab abab
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*
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0400000 0000 0000 0000 0000 0000 0000 0000 0000
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*
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0800000 abab abab abab abab abab abab abab abab
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ DEV=$(sudo rbd map cloneimg@snap)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ rbd flatten --no-progress cloneimg
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$ rbd snap unprotect img@snap
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$ rbd snap rm --no-progress img@snap
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$ rbd rm --no-progress img
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$ DEV=$(sudo rbd map cloneimg)
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$ hexdump $DEV
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0000000 abab abab abab abab abab abab abab abab
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*
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0400000 0000 0000 0000 0000 0000 0000 0000 0000
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*
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0800000 abab abab abab abab abab abab abab abab
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ DEV=$(sudo rbd map cloneimg@snap)
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$ hexdump $DEV
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0000000 cdcd cdcd cdcd cdcd cdcd cdcd cdcd cdcd
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*
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0c00000
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$ sudo rbd unmap $DEV
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$ rbd snap rm --no-progress cloneimg@snap
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$ rbd rm --no-progress cloneimg
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