Hi Song On 15.06.19 17:30, Song Liu wrote: > The events count is just off by 1, so it looks like the bitmap's super > block didn't got update properly. From the code in latest upstream, > we write the superblock with REQ_SYNC, but not REQ_OP_FLUSH > or REQ_FUA, so this _might_ be the problem. Ok > Question: are you running the two drives with write cache on? > If yes, and if your application is not heavy on writes, could you try > turn off HDD write cache and see if the issue repros? Thanks for this. I just disabled the write cache with hdparm in rc.local for both RAID members and will let you know if the problem occurs again. -- kind regards mathias
