On 11/03/2017 02:37 AM, NeilBrown wrote: > > This pull request appeared on my github mdadm ... thing. > > I haven't looked in detail. If someone would like to review it > or something, that would be nice. Finally got around to looking at this. I am not hugely familiar with smartctl, but it looks reasonable to me, especially since they won't be auto-installed. Jonathan, please make sure to always CC linux-raid on all mdadm related patches. Note I prefer patches to git pull requests. Thanks, Jes > Thanks, > NeilBrown > > On Fri, Nov 03 2017, jonathanunderwood wrote: > >> These udev rules attempt to set a safe kernel controller >> timeout for disks containing RAID level 1 or higher >> partitions for commodity disks which do not have SCTERC >> capability, or do have it but it is disabled. >> >> No attempt is made to change the STCERC settings on devices >> which support it. >> >> This attempts to mitigate the problem described here: >> >> https://raid.wiki.kernel.org/index.php/Timeout_Mismatch >> http://strugglers.net/~andy/blog/2015/11/09/linux-software-raid-and-drive-timeouts/ >> >> where the kernel controller may timeout on a read from a >> disk after the default timeout of 30 seconds and consequently >> cause mdraid to regard the disk as dead and eject it from the >> RAID array. >> >> The mitigation is to set the timeout to 180 seconds for disks >> which contain a RAID level 1 or higher partition. >> You can view, comment on, or merge this pull request online at: >> >> https://github.com/neilbrown/mdadm/pull/32 >> >> -- Commit Summary -- >> >> * Add udev-md-raid-safe-timeouts.rules >> >> -- File Changes -- >> >> A udev-md-raid-safe-timeouts.rules (61) >> >> -- Patch Links -- >> >> https://github.com/neilbrown/mdadm/pull/32.patch >> https://github.com/neilbrown/mdadm/pull/32.diff >> >> -- >> You are receiving this because you are subscribed to this thread. >> Reply to this email directly or view it on GitHub: >> https://github.com/neilbrown/mdadm/pull/32 -- 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
