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#!/bin/bash
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################################################################################
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#
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# Copyright (c) 2005,2006: Ira W. Snyder (devel@irasnyder.com)
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# License: GNU General Public License v2 (or at your option, any later version)
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#
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################################################################################
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################################################################################
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### Config Options ###
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################################################################################
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EMAIL_ADDR="ira@irasnyder.com"
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EMAIL_FILE="/root/raid_checker.txt"
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RAID_DEVICE="/dev/md0"
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RAID_DRIVES="/dev/sd[abcdefgh]"
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################################################################################
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### Functions ###
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################################################################################
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# Anything that needs to be run before the main program starts
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# goes in this function
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pre_startup() {
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if [ -f "$EMAIL_FILE" ]; then
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echo "Necessary file exists: $EMAIL_FILE";
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echo "Delete it then run me again";
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exit 1
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fi
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}
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# Anything that needs to be run after the main program finishes
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# goes in this function
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clean_up() {
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if [ -f "$EMAIL_FILE"]; then
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echo "Removing: $EMAIL_FILE";
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rm "$EMAIL_FILE";
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fi
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}
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# Generate a nice header for the email
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generate_header() {
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echo "raid_checker v1.0"
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echo "Copyright (c) 2005,2006: Ira W. Snyder (devel@irasnyder.com)"
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echo "====================================================================="
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echo
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}
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################################################################################
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### The main program ###
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################################################################################
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# Run pre-startup stuff
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pre_startup
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# Make the header
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generate_header | tee -a "$EMAIL_FILE"
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# Get start date / time
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START_TIME="$(date)"
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### Optional stuff, disabled for now, since you MUST be offline to perform
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### both checks, and I don't want to have to go offline once a month.
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# Check via read test
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# echo "Running read-only check: e2fsck -c $RAID_DEVICE" | tee -a "$EMAIL_FILE"
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# e2fsck -c "$RAID_DEVICE" 2>&1 | tee -a "$EMAIL_FILE"
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# Check via non-destructive read-write test
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# echo "Running non-destructive read-write check: e2fsck -c -c $RAID_DEVICE" | tee -a "$EMAIL_FILE"
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# e2fsck -c -c "$RAID_DEVICE" 2>&1 | tee -a "$EMAIL_FILE"
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# Read the whole disk. As of linux-2.6.15, md will regenerate bad data on
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# a read error, then schedule a write of the good data back to disk. It
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# should then re-read the newly written data to make sure it's ok.
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#
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# Source: http://www.ussg.iu.edu/hypermail/linux/kernel/0601.2/1200.html
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#
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echo "Reading the whole disk: dd if=${RAID_DEVICE} of=/dev/null" | tee -a "$EMAIL_FILE"
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dd if="${RAID_DEVICE}" of=/dev/null 2>&1 | tee -a "$EMAIL_FILE"
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echo | tee -a "$EMAIL_FILE"
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echo | tee -a "$EMAIL_FILE"
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# Run smartctl on each drive, sleeping in between each one
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for d in $RAID_DRIVES;
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do echo "SMART checking drive: ${d}" | tee -a "$EMAIL_FILE"
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echo "=================================================" | tee -a "$EMAIL_FILE"
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smartctl -t long "${d}" 2>&1 | tee -a "$EMAIL_FILE"
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echo | tee -a "$EMAIL_FILE"
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echo | tee -a "$EMAIL_FILE"
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sleep 160m
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smartctl -d ata -l selftest "${d}" 2>&1 | tee -a "$EMAIL_FILE"
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echo | tee -a "$EMAIL_FILE"
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echo | tee -a "$EMAIL_FILE"
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done;
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# Get finish date / time
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FINISH_TIME="$(date)"
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# Print the final bits to the email
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echo "Start time: ${START_TIME}" | tee -a "$EMAIL_FILE"
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echo "Finish time: ${FINISH_TIME}" | tee -a "$EMAIL_FILE"
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# Mail out the file
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mailx -s "RAID Check Results from: $(hostname --fqdn)" "$EMAIL_ADDR" < "$EMAIL_FILE"
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# Clean up the email file, etc.
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clean_up
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