FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/tests/zfs-tests/callbacks/zfs_mmp.ksh

     #!/bin/ksh -p
     
     #
     # This file and its contents are supplied under the terms of the
     # Common Development and Distribution License ("CDDL"), version 1.0.
     # You may only use this file in accordance with the terms of version
     # 1.0 of the CDDL.
     #
     # A full copy of the text of the CDDL should have accompanied this
    # source.  A copy of the CDDL is also available via the Internet at
    # http://www.illumos.org/license/CDDL.
    #
    
    #
    # Copyright (c) 2017 by Lawrence Livermore National Security.
    # All rights reserved.
    #
    
    # $1: number of lines to output (default: 40)
    typeset lines=${1:-40}
    typeset history=$(</sys/module/zfs/parameters/zfs_multihost_history)
    
    if [ $history -eq 0 ]; then
            exit
    fi
    
    for f in /proc/spl/kstat/zfs/*/multihost; do
            echo "================================================================="
            echo " Last $lines lines of $f"
            echo "================================================================="
    
            sudo tail -n $lines $f
    done
    
    echo "================================================================="
    echo " End of zfs multihost log"
    echo "================================================================="

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