mirror of
https://github.com/Spearfoot/FreeNAS-scripts
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58 lines
1.7 KiB
Bash
58 lines
1.7 KiB
Bash
#!/usr/bin/env bash
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# https://www.smartmontools.org/wiki/FAQ#WhatiserrorrecoverycontrolERCandwhyitisimportanttoenableitfortheSATAdisksinRAID
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# ERC timeout values, in tenths of a second. The defaults below are 7 seconds for both reads and writes:
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readsetting=70
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writesetting=70
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# We need a list of the SMART-enabled drives on the system. Choose one of these
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# three methods to provide the list. Comment out the two unused sections of code.
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# 1. A string constant; just key in the devices you want to report on here:
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#drives="da1 da2 da3 da4 da5 da6 da7 da8 ada0"
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# 2. A systcl-based technique suggested on the FreeNAS forum:
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#drives=$(for drive in $(sysctl -n kern.disks); do \
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#if [ "$(/usr/local/sbin/smartctl -i /dev/${drive} | grep "SMART support is: Enabled" | awk '{print $3}')" ]
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#then printf ${drive}" "; fi done | awk '{for (i=NF; i!=0 ; i--) print $i }')
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# 3. A smartctl-based function:
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get_smart_drives()
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{
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local gs_smartdrives
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local gs_drives
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local gs_drive
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local gs_smart_flag
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gs_drives=$(/usr/local/sbin/smartctl --scan | grep "dev" | awk '{print $1}' | sed -e 's/\/dev\///')
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gs_smartdrives=""
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for gs_drive in $gs_drives; do
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gs_smart_flag=$(/usr/local/sbin/smartctl -i /dev/"$gs_drive" | grep "SMART support is: Enabled" | awk '{print $4}')
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if [ "$gs_smart_flag" == "Enabled" ]; then
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gs_smartdrives=$gs_smartdrives" "${gs_drive}
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fi
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done
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eval "$1=\$gs_smartdrives"
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}
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declare drives
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get_smart_drives drives
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# end of method 3.
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set_erc()
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{
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echo "Drive: /dev/$1"
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/usr/local/sbin/smartctl -q silent -l scterc,"${readsetting}","${writesetting}" /dev/"$1"
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/usr/local/sbin/smartctl -l scterc /dev/"$1" | grep "SCT\|Write\|Read"
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}
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for drive in $drives; do
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set_erc "$drive"
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done
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