6568379eea
- Fix autoreplace behaviour on statechange-led.sh script. ZED sends the following events on an auto-replace: 1. statechange: Disk goes UNAVAIL->ONLINE 2. statechange: Disk goes ONLINE->UNAVAIL 3. vdev_attach: Disk goes ONLINE Events 1-2 happen when ZED first attempts to do an auto-online. When that fails, ZED then tries an auto-replace, generating the vdev_attach event in #3. In the previous code, statechange-led was only looking at the UNAVAIL->ONLINE transition to turn off the LED. It ignored the #2 ONLINE->UNAVAIL transition, assuming it was just the "old" VDEV going offline. This is problematic, as a drive can go from ONLINE->UNAVAIL when it's malfunctioning, and we don't want to ignore that. This new patch correctly turns on the fault LED every time a drive becomes UNAVAIL. It also monitors vdev_attach events to trigger turning off the LED when an auto-replaced disk comes online. - Remove unnecessary libdevmapper warning with --with-config=kernel This fixes an unnecessary libdevmapper warning when building --with-config=kernel. Kernel code does not use libdevmapper, so the warning is not needed. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tony Hutter <hutter2@llnl.gov> Closes #2375 Closes #5312 Closes #5331 |
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| .. | ||
| README | ||
| all-debug.sh | ||
| all-syslog.sh | ||
| checksum-notify.sh | ||
| checksum-spare.sh | ||
| data-notify.sh | ||
| generic-notify.sh | ||
| io-notify.sh | ||
| io-spare.sh | ||
| resilver_finish-notify.sh | ||
| scrub_finish-notify.sh | ||
| statechange-led.sh | ||
| vdev_attach-led.sh | ||
| vdev_clear-led.sh | ||
| zed-functions.sh | ||
| zed.rc | ||
README
Shell scripts are the recommended choice for ZEDLETs that mostly call other utilities and do relatively little data manipulation. Shell scripts MUST work on both bash and dash. Shell scripts MUST run cleanly through ShellCheck: http://www.shellcheck.net/ General functions reside in "zed-functions.sh". Use them where applicable. Additional references that may be of use: Google Shell Style Guide https://google-styleguide.googlecode.com/svn/trunk/shell.xml Dash as /bin/sh https://wiki.ubuntu.com/DashAsBinSh Common shell script mistakes http://www.pixelbeat.org/programming/shell_script_mistakes.html Filenames and Pathnames in Shell: How to do it Correctly http://www.dwheeler.com/essays/filenames-in-shell.html Autoconf: Portable Shell Programming https://www.gnu.org/software/autoconf/manual/autoconf.html#Portable-Shell Please BE CONSISTENT with the existing style, check for errors, minimize dependencies where possible, try to be portable, and comment anything non-obvious. Festina lente.