projects / thirdparty / mdadm.git / blame
| Commit | Line | Data |
|---|---|---|
| b96c193b JU |
1 | # Copyright (C) 2017 by Jonathan G. Underwood |
| 2 | # This file is part of mdraid-safe-timeouts. | |
| 3 | # | |
| 4 | # mdraid-safe-timeouts is free software: you can redistribute it | |
| 5 | # and/or modify it under the terms of the GNU General Public License | |
| 6 | # as published by the Free Software Foundation, either version 3 of | |
| 7 | # the License, or (at your option) any later version. | |
| 8 | # | |
| 9 | # Foobar is distributed in the hope that it will be useful, but | |
| 10 | # WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 | # General Public License for more details. | |
| 13 | # | |
| 14 | # You should have received a copy of the GNU General Public License | |
| 15 | # along with mdraid-safe-timeouts. If not, see | |
| 16 | # <http://www.gnu.org/licenses/>. | |
| 17 | ||
| 18 | # This file causes block devices with Linux RAID (mdadm) signatures to | |
| 19 | # attempt to set safe timeouts for the drives involved | |
| 20 | # See udev(8) for syntax | |
| 21 | ||
| 22 | # Don't process any events if anaconda is running as anaconda brings up | |
| 23 | # raid devices manually | |
| 24 | ENV{ANACONDA}=="?*", GOTO="md_timeouts_end" | |
| 25 | ||
| 26 | SUBSYSTEM!="block|machinecheck", GOTO="md_timeouts_end" | |
| 27 | ||
| 28 | # "noiswmd" on kernel command line stops mdadm from handling | |
| 29 | # "isw" (aka IMSM - Intel RAID). | |
| 30 | # "nodmraid" on kernel command line stops mdadm from handling | |
| 31 | # "isw" or "ddf". | |
| 32 | IMPORT{cmdline}="nodmraid" | |
| 33 | ENV{nodmraid}=="?*", GOTO="md_timeouts_end" | |
| 34 | IMPORT{cmdline}="noiswmd" | |
| 35 | ENV{noiswmd}=="?*", GOTO="md_timeouts_end" | |
| 36 | ||
| 37 | # Set controller timeout for parent disk of each partition if the | |
| 38 | # partition is a mdraid partition of higher than raid 0, and the disk | |
| 39 | # doesn't have scterc turned on (i.e. if it's disabled or the disk | |
| 40 | # doesn't support it). We determine if the disk has SCTERC turned on | |
| 41 | # by examining the output of smartctl and seeing if it contains the | |
| 42 | # word "seconds". If the word "seconds" is found we take this to imply | |
| 43 | # STCERC is turned on, and take no action. Otherwise we set the drive | |
| 44 | # controller timeout to 180 seconds. It would be better to check the | |
| 45 | # exit status code of smartctl rather than grepping for "seconds", but | |
| 46 | # it's not clear what that will be in the three cases (supported and | |
| 47 | # turned on, supported but disabled, not supported). | |
| 48 | ||
| 49 | ENV{DEVTYPE}!="partition", GOTO="md_timeouts_end" | |
| 50 | ||
| 51 | IMPORT{program}="/sbin/mdadm --examine --export $devnode" | |
| 52 | ||
| 53 | ACTION=="add|change", \ | |
| 54 | ENV{ID_FS_TYPE}=="linux_raid_member", \ | |
| 55 | ENV{MD_LEVEL}=="raid[1-9]*", \ | |
| 56 | TEST=="/sys/block/$parent/device/timeout", \ | |
| 57 | TEST=="/usr/sbin/smartctl", \ | |
| 58 | PROGRAM!="/usr/bin/sh -c '/usr/sbin/smartctl -l scterc /dev/$parent | grep -q seconds && exit 0 || exit 1'", \ | |
| 59 | RUN+="/usr/bin/sh -c '/usr/bin/echo 180 > /sys/block/$parent/device/timeout && /usr/bin/logger timeout for /dev/$parent set to 180 secs'" | |
| 60 | ||
| 61 | LABEL="md_timeouts_end" |