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Diffstat (limited to 'Documentation/admin-guide/md.rst')
| -rw-r--r-- | Documentation/admin-guide/md.rst | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/admin-guide/md.rst b/Documentation/admin-guide/md.rst index deed823eab01..dc7eab191caa 100644 --- a/Documentation/admin-guide/md.rst +++ b/Documentation/admin-guide/md.rst @@ -238,6 +238,16 @@ All md devices contain: the number of devices in a raid4/5/6, or to support external metadata formats which mandate such clipping. + logical_block_size + Configure the array's logical block size in bytes. This attribute + is only supported for 1.x meta. Write the value before starting + array. The final array LBS uses the maximum between this + configuration and LBS of all combined devices. Note that + LBS cannot exceed PAGE_SIZE before RAID supports folio. + WARNING: Arrays created on new kernel cannot be assembled at old + kernel due to padding check, Set module parameter 'check_new_feature' + to false to bypass, but data loss may occur. + reshape_position This is either ``none`` or a sector number within the devices of the array where ``reshape`` is up to. If this is set, the three |