On Tuesday 27 of March 2018 13:49:28 Wols Lists wrote: > Very much agreed, although if he can add several new drives physically, > I also believe you can replace them at the same time > > mdadm /dev/mdX --add /dev/sdDX /dev/sdEX --replace /dev/sdSX /dev/sdTX > --with /dev/sdDX /dev/sdEX Right, but one has to consider trade-offs of having replacement of disks done faster, or having less impact on performance of array. > > I grow FS on LVM level with online expandable FSs like ext4. > > Which you can't do just yet ... the new array will be the exact same > size as the old one, with a large chunk of unused disk space. After copying partition table, I add new partition(s) on remaining free space of larger disks, create RAID device from them, create PV on that, add it VG, and than I can resize LV with FS as I want. No pvmove/raid grow needed, easier to put smaller disks back, split array over more disks later. Regards, -- Mateusz Korniak "(...) mam brata - poważny, domator, liczykrupa, hipokryta, pobożniś, krótko mówiąc - podpora społeczeństwa." Nikos Kazantzakis - "Grek Zorba" -- 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
