> On Mar 2, 2017, at 10:39 AM, Shaohua Li <shli@xxxxxxxxxx> wrote: > > On Sat, Feb 25, 2017 at 11:12:21PM +0900, Tomasz Chmielewski wrote: >> mdadm manual specifies the following for create, build and grow modes: >> >> --write-journal >> Specify journal device for the RAID-4/5/6 array. >> >> However: >> >> # mdadm --grow /dev/md2 --write-journal /dev/sdc1 >> mdadm: :option --write-journal not valid in grow mode >> >> >> Is it not yet supported, will never be supported, or am I simply trying to >> use it in a wrong way? >> >> >> >> Tried the following versions: >> >> # ./mdadm -V >> mdadm - v3.4-115-ge22fe3a - 29th November 2016 >> >> # mdadm -V >> mdadm - v3.4 - 28th January 2016 > > Cc: Song and Jes. > > I think we support hotadd journal. Will let Song clarify. > > Thanks, > Shaohua We have support for hotadd journal to an array with broken/missing journal. We haven't implement hotted journal to arrays with no journal ever. We do plan to add the feature. Thanks, Song-- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html