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Diffstat (limited to 'Documentation/admin-guide/device-mapper/dm-flakey.rst')
| -rw-r--r-- | Documentation/admin-guide/device-mapper/dm-flakey.rst | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/admin-guide/device-mapper/dm-flakey.rst b/Documentation/admin-guide/device-mapper/dm-flakey.rst index f7104c01b0f7..f967c5fea219 100644 --- a/Documentation/admin-guide/device-mapper/dm-flakey.rst +++ b/Documentation/admin-guide/device-mapper/dm-flakey.rst @@ -67,6 +67,16 @@ Optional feature parameters: Perform the replacement only if bio->bi_opf has all the selected flags set. + random_read_corrupt <probability> + During <down interval>, replace random byte in a read bio + with a random value. probability is an integer between + 0 and 1000000000 meaning 0% to 100% probability of corruption. + + random_write_corrupt <probability> + During <down interval>, replace random byte in a write bio + with a random value. probability is an integer between + 0 and 1000000000 meaning 0% to 100% probability of corruption. + Examples: Replaces the 32nd byte of READ bios with the value 1:: |