Errata: On Wed, Dec 20, 2017 at 09:34:48 +0100, Tomasz Pala wrote: > /dev/sda -> 'not ready' > /dev/sdb -> 'not ready' > /dev/sdc -> 'ready', triggers /dev/sda -> 'not ready' and /dev/sdb - still 'not ready' > /dev/sdc -> kernel says 'ready', triggers /dev/sda - 'ready' and /dev/sdb -> 'ready' The last line should start with /dev/sdd. > After such timeout, I'd like to tell the kernel: "no more devices, give > me all the remaining btrfs volumes in degraded mode if possible". By Actually "if possible" means both: - if technically possible (i.e. required data is available, like half of RAID1), - AND if allowed for specific volume as there might be different policies. For example - one might allow rootfs to be started in degraded-rw mode in order for the system to boot up, /home in degraded read-only for the users to have access to their files and do not mount /srv degraded at all. The failed mount can be non-critical with 'nofail' fstab flag. > "give me btrfs vulumes" I mean "mark them as 'ready'" so the udev could > fire it's rules. And if there would be anything for udev to distinguish > 'ready' from 'ready-degraded' one could easily compose some notification > scripting on top of it, including sending e-mail to sysadmin. -- Tomasz Pala <gotar@xxxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
