On Wed, Oct 04, 2017 at 01:23:02PM +0200, Artur Paszkiewicz wrote: > On 10/04/2017 01:02 PM, Artur Paszkiewicz wrote: > > Applications like mdadm can use this to hide/unhide their component > > devices. > > And here is an example patch for mdadm. It adds options to manually hide > or unhide the component devices: > > mdadm --hide-components /dev/md0 > mdadm --unhide-components /dev/md0 This seems to me already quite sensible. > > And an option for mdadm.conf that automatically hides the array's member > disks when assembling and when new disks are added: > > ARRAY /dev/md/0 metadata=1.2 UUID=c2c4f8c6:cd775924:9cb2cc62:88fa45bd > name=linux-ns31:0 hide-components=yes > > Hidden disks (by mdadm --hide-components or by config) should unhide > when the array is stopped or disks are removed. It only works for whole > devices, not partitions. Well, this, on the other hands, it makes it not really useful. Furthermore, how about "cat /proc/mdstat"? Will this show what? In case of hidden components. Thanks, bye, -- piergiorgio -- 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
