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https://github.com/kdave/btrfs-progs
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b782d087ae
Now, btrfs-progs has a kernel scrub equivalent. A new option, --offline is added to "btrfs scrub start". If --offline is given, btrfs scrub will just act like kernel scrub, to check every copy of extent and do a report on corrupted data and if it's recoverable. The advantage compare to kernel scrub is: 1) No race Unlike kernel scrub, which is done in parallel, offline scrub is done by a single thread. Although it may be slower than kernel one, it's safer and no false alert. 2) Correctness Kernel has a known bug (fix submitted) which will recovery RAID5/6 data but screw up P/Q, due to the hardness coding in kernel. While in btrfs-progs, no page, (almost) no memory size limit, we're can focus on the scrub, and make things easier. New offline scrub can detect and report P/Q corruption with recoverability report, while kernel will only report data stripe error. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: Su <suy.fnst@cn.fujitsu.com> Signed-off-by: Gu Jinxiang <gujx@cn.fujitsu.com> |
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| .. | ||
| asciidoc.conf | ||
| btrfs-balance.asciidoc | ||
| btrfs-check.asciidoc | ||
| btrfs-convert.asciidoc | ||
| btrfs-device.asciidoc | ||
| btrfs-filesystem.asciidoc | ||
| btrfs-find-root.asciidoc | ||
| btrfs-image.asciidoc | ||
| btrfs-inspect-internal.asciidoc | ||
| btrfs-man5.asciidoc | ||
| btrfs-map-logical.asciidoc | ||
| btrfs-property.asciidoc | ||
| btrfs-qgroup.asciidoc | ||
| btrfs-quota.asciidoc | ||
| btrfs-receive.asciidoc | ||
| btrfs-replace.asciidoc | ||
| btrfs-rescue.asciidoc | ||
| btrfs-restore.asciidoc | ||
| btrfs-scrub.asciidoc | ||
| btrfs-select-super.asciidoc | ||
| btrfs-send.asciidoc | ||
| btrfs-subvolume.asciidoc | ||
| btrfs.asciidoc | ||
| btrfstune.asciidoc | ||
| CodingConventions | ||
| DocConventions | ||
| fsck.btrfs.asciidoc | ||
| Makefile.in | ||
| manpage-base.xsl | ||
| manpage-bold-literal.xsl | ||
| manpage-normal.xsl | ||
| mkfs.btrfs.asciidoc | ||
| ReleaseChecklist | ||