Subversion Repositories programming

#!/bin/bash

################################################################################

#

# Copyright (c) 2005,2006: Ira W. Snyder (devel@irasnyder.com)

# License: GNU General Public License v2 (or at your option, any later version)

#

################################################################################

# This script needs dd, mktemp, smartctl, cstream, mailx, tee, sleep, echo,

# date, hostname, and rm in your path in order to work at all.

################################################################################

###                            Config Options                                ###

################################################################################

TMPFILE="$(mktemp)" || (echo "Failed to create tempfile" && exit 1)

EMAIL_ADDR="ira@irasnyder.com"

EMAIL_FILE="${TMPFILE}"

RAID_DEVICE="/dev/md0"

RAID_DRIVES="/dev/sd[abcdefgh]"

DD_SPD_LIMIT="80M"

SMART_SLEEP_TIME="160m"

################################################################################

###                            Functions                                     ###

################################################################################

# Anything that needs to be run before the main program starts

# goes in this function

pre_startup() {

}

# Anything that needs to be run after the main program finishes

# goes in this function

clean_up() {

    if [ -f "$EMAIL_FILE"]; then

        echo "Removing: $EMAIL_FILE";

        rm "$EMAIL_FILE";

    fi

}

# Generate a nice header for the email

generate_header() {

    echo "raid_checker v1.0"

    echo "Copyright (c) 2005,2006: Ira W. Snyder (devel@irasnyder.com)"

    echo "====================================================================="

    echo

}

################################################################################

###                            The main program                              ###

################################################################################

# Run pre-startup stuff

pre_startup

# Make the header

generate_header | tee -a "$EMAIL_FILE"

# Get start date / time

START_TIME="$(date)"

### Optional stuff, disabled for now, since you MUST be offline to perform

### both checks, and I don't want to have to go offline once a month.

# Check via read test

# echo "Running read-only check: e2fsck -c $RAID_DEVICE" | tee -a "$EMAIL_FILE"

# e2fsck -c "$RAID_DEVICE" 2>&1 | tee -a "$EMAIL_FILE"

# Check via non-destructive read-write test

# echo "Running non-destructive read-write check: e2fsck -c -c $RAID_DEVICE" | tee -a "$EMAIL_FILE"

# e2fsck -c -c "$RAID_DEVICE" 2>&1 | tee -a "$EMAIL_FILE"

# Read the whole disk. As of linux-2.6.15, md will regenerate bad data on

# a read error, then schedule a write of the good data back to disk. It

# should then re-read the newly written data to make sure it's ok.

#

# Source: http://www.ussg.iu.edu/hypermail/linux/kernel/0601.2/1200.html

#

echo "Reading the whole disk: dd if=${RAID_DEVICE} of=/dev/null" | tee -a "$EMAIL_FILE"

dd if="${RAID_DEVICE}" | cstream -t"${DD_SPD_LIMIT}" -T300 -v1 -o- | tee -a "$EMAIL_FILE"

echo | tee -a "$EMAIL_FILE"

echo | tee -a "$EMAIL_FILE"

# Run smartctl on each drive, sleeping in between each one

for d in $RAID_DRIVES;

    do echo "SMART checking drive: ${d}" | tee -a "$EMAIL_FILE"

    echo "=================================================" | tee -a "$EMAIL_FILE"

    smartctl -t long "${d}" 2>&1 | tee -a "$EMAIL_FILE"

    echo | tee -a "$EMAIL_FILE"

    echo | tee -a "$EMAIL_FILE"

    sleep "${SMART_SLEEP_TIME}"

    smartctl -d ata -l selftest "${d}" 2>&1 | tee -a "$EMAIL_FILE"

    echo | tee -a "$EMAIL_FILE"

    echo | tee -a "$EMAIL_FILE"

done;

# Get finish date / time

FINISH_TIME="$(date)"

# Print the final bits to the email

echo "Start time:  ${START_TIME}"  | tee -a "$EMAIL_FILE"

echo "Finish time: ${FINISH_TIME}" | tee -a "$EMAIL_FILE"

# Mail out the file

mailx -s "RAID Check Results from: $(hostname --fqdn)" "$EMAIL_ADDR" < "$EMAIL_FILE"

# Clean up the email file, etc.

clean_up