Comment by atmosx

3 hours ago

Once a month is fine ("/etc/cron.monthly/zfs-scrub"):

    #!/bin/bash
    #
    # ZFS scrub script for monthly maintenance
    # Place in /etc/cron.monthly/zfs-scrub
    
    POOL="storage"
    TAG="zfs-scrub"
    
    # Log start
    logger -t "$TAG" -p user.notice "Starting ZFS scrub on pool: $POOL"
    
    # Run the scrub
    if /sbin/zpool scrub "$POOL"; then
        logger -t "$TAG" -p user.notice "ZFS scrub initiated successfully on pool: $POOL"
    else
        logger -t "$TAG" -p user.err "Failed to start ZFS scrub on pool: $POOL"
        exit 1
    fi
    
    exit 0

2 comments

atmosx

k_bx 2 hours ago

Didn't know about the logger script, looks nice. Can it wrap the launch of the scrub itself so that it logs like logger too, or do you separately track its stdout/stderr when something happens?

update: figured how you can improve that call to add logs to logger

chungy 2 hours ago

That script might do with the "-w" parameter passed to scrub. Then "zpool scrub" won't return until the scrub is finished.