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9e246ac3d8
zed monitors ZFS events. When a zevent is posted, zed will run any scripts that have been enabled for the corresponding zevent class. Multiple scripts may be invoked for a given zevent. The zevent nvpairs are passed to the scripts as environment variables. Events are processed synchronously by the single thread, and there is no maximum timeout for script execution. Consequently, a misbehaving script can delay (or forever block) the processing of subsequent zevents. Plans are to address this in future commits. Initial scripts have been developed to log events to syslog and send email in response to checksum/data/io errors and resilver.finish/scrub.finish events. By default, email will only be sent if the ZED_EMAIL variable is configured in zed.rc (which is serving as a config file of sorts until a proper configuration file is implemented). Signed-off-by: Chris Dunlap <cdunlap@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #2
80 lines
1.1 KiB
Bash
Executable File
80 lines
1.1 KiB
Bash
Executable File
#!/bin/bash
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#
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# A simple script to simply the loading/unloading the ZFS module stack.
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basedir="$(dirname $0)"
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SCRIPT_COMMON=common.sh
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if [ -f "${basedir}/${SCRIPT_COMMON}" ]; then
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. "${basedir}/${SCRIPT_COMMON}"
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else
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echo "Missing helper script ${SCRIPT_COMMON}" && exit 1
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fi
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PROG=zfs.sh
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UNLOAD=
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usage() {
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cat << EOF
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USAGE:
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$0 [hvud] [module-options]
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DESCRIPTION:
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Load/unload the ZFS module stack.
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OPTIONS:
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-h Show this message
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-v Verbose
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-u Unload modules
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-d Save debug log on unload
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MODULE-OPTIONS:
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Must be of the from module="options", for example:
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$0 zfs="zfs_prefetch_disable=1"
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$0 zfs="zfs_prefetch_disable=1 zfs_mdcomp_disable=1"
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$0 spl="spl_debug_mask=0"
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EOF
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}
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while getopts 'hvud' OPTION; do
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case $OPTION in
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h)
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usage
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exit 1
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;;
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v)
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VERBOSE=1
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;;
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u)
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UNLOAD=1
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;;
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d)
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DUMP_LOG=1
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;;
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?)
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usage
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exit
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;;
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esac
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done
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if [ $(id -u) != 0 ]; then
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die "Must run as root"
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fi
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if [ ${UNLOAD} ]; then
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kill_zed
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umount -t zfs -a
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stack_check
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unload_modules
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else
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stack_clear
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check_modules || die "${ERROR}"
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load_modules "$@"
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wait_udev /dev/zfs 30
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fi
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exit 0
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