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c/mirror_zfs

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Fix statechange-led.sh & unnecessary libdevmapper warning - 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

2016-10-25 21:05:30 +03:00

statechange-led.sh