37e48b712e
* keep ./services for instances ./profiles is for config-only modules ./services are like profiles, but configure a single instance of a service. Those are fronted by Nginx as the load-balancer and have a DNS entry as well. * ci: build build03 as well * move hydra to services * move matterbridge to services * move marvin-mk2 to services * build01: share the remainder profiles * build02: use the nix-community-cache * fixup kexec * rename profiles to roles * README: sync with reality
66 lines
2.4 KiB
Bash
Executable file
66 lines
2.4 KiB
Bash
Executable file
#!/usr/bin/env bash
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#
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# telegraf plugin for mdstat monitoring
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#
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# output fields:
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# - measurement: mdstat
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# - tags:
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# - host: hostname
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# - dev: md device name (md0, md1 etc)
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# - fields:
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# - mismatch_cnt: number of mismatched sectors during latest check
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# - state: clear / inactive / suspended / readonly / read-auto / clean / active / write-pending / active-idle
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# - active_disks: number of active disks in array
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# - degraded_disks: number of faulty disks in array (0 = healthy)
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# - total_disks: number of disks in array
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#
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# see https://www.kernel.org/doc/html/v4.15/admin-guide/md.html for more
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#
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# state values:
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# - clear: no devices, no size, no level
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# - inactive: may have some settings, but array is not active all IO results in error
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# - suspended: all IO requests will block. the array can be reconfigured.
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# - readonly: no resync can happen. no superblocks get written. Write requests fail
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# - read-auto: like readonly, but behaves like clean on a write request.
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# - clean: no pending writes, but otherwise active.
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# - active: fully active: IO and resync can be happening. when written to inactive array, starts with resync
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# - write-pending: clean, but writes are blocked waiting for active to be written.
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# - active-idle: like active, but no writes have been seen for a while
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#
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#
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# sample /proc/mdstat
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#
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# Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] [raid4] [raid10]
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# md2 : active raid1 sdb3[1] sda3[0]
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# 1936079936 blocks super 1.2 [2/2] [UU]
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# bitmap: 2/15 pages [8KB], 65536KB chunk
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#
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# md1 : active raid1 sdb2[1] sda2[0]
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# 523712 blocks super 1.2 [2/2] [UU]
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#
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# md0 : active raid1 sdb1[1] sda1[0]
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# 16760832 blocks super 1.2 [2/2] [UU]
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#
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# sample /sys/block/md0/uevent
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#
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# MAJOR=9
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# MINOR=0
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# DEVNAME=md0
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# DEVTYPE=disk
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HOST=$(< /proc/sys/kernel/hostname)
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for MD_SYS_FOLDER in /sys/block/md*; do
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eval $(< "${MD_SYS_FOLDER}/uevent")
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MD_DEV=${DEVNAME}
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[ -z "${MD_DEV}" ] && continue
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MISMATCH_CNT=$(< "${MD_SYS_FOLDER}/md/mismatch_cnt")
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STATE=$(< "${MD_SYS_FOLDER}/md/array_state")
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DEGRADED_DISKS=$(< "${MD_SYS_FOLDER}/md/degraded")
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TOTAL_DISKS=$(< "${MD_SYS_FOLDER}/md/raid_disks")
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ACTIVE_DISKS=$(expr $TOTAL_DISKS - $DEGRADED_DISKS)
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echo "mdstat,host=${HOST},dev=${MD_DEV} mismatch_cnt=${MISMATCH_CNT}i,state=\"${STATE}\",active_disks=${ACTIVE_DISKS}i,degraded_disks=${DEGRADED_DISKS}i,total_disks=${TOTAL_DISKS}i"
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done
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