Hmm. Sorry i'm not fully understand. I think : create /dev/md0 with /dev/sda (sata) level=1 raid-devices=1 format /dev/md0 with bcache format /dev/sdb (ssd) with brache create bcache0 with /dev/md0 and /dev/sdb why this is not possible? 2013/7/3 matthew patton <pattonme@xxxxxxxxx>: > short answer you can't. you can unbind the SSD from bcache and otherwise remove the bcache config but you can't turn a live disk into a MD raid member without destroying all data on it. Introduce the 2nd big hard disk and create a raid1 on it with an absent mirror pair. DD or RSYNC the data from your first disk to the new MD device. reconfigure first disk to be MD member and let MD re-sync the (same) data back once more. > > add SSD and MD device to bcache config and it's now accelerated. -- Vasiliy Tolstov, e-mail: v.tolstov@xxxxxxxxx jabber: vase@xxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
