functional/snapshot/snapshot_003_pos.ksh

#! /bin/ksh -p
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
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# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
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# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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#
# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#

#
# Copyright (c) 2013, 2016 by Delphix. All rights reserved.
#

. $STF_SUITE/include/libtest.shlib
. $STF_SUITE/tests/functional/snapshot/snapshot.cfg

#
# DESCRIPTION:
# Verify that many snapshots can be made on a zfs file system.
#
# STRATEGY:
# 1) Create a files in the zfs file system
# 2) Create a snapshot of the dataset
# 3) Remove all the files from the original file system
# 4) Verify consistency of each snapshot directory
#

verify_runnable "both"

function cleanup
{
    typeset -i i=1
    while [ $i -lt $COUNT ]; do
        snapexists $SNAPFS.$i
        if [[ $? -eq 0 ]]; then
            log_must zfs destroy $SNAPFS.$i
        fi

        if [[ -e $SNAPDIR.$i ]]; then
            log_must rm -rf $SNAPDIR.$i > /dev/null 2>&1
        fi

        (( i = i + 1 ))
    done

    if [[ -e $TESTDIR ]]; then
        log_must rm -rf $TESTDIR/* > /dev/null 2>&1
    fi
}

log_assert "Verify many snapshots of a file system can be taken."

log_onexit cleanup

[[ -n $TESTDIR ]] && \
    log_must rm -rf $TESTDIR/* > /dev/null 2>&1

typeset -i COUNT=10

log_note "Create some files in the $TESTDIR directory..."
typeset -i i=1
while [[ $i -lt $COUNT ]]; do
    log_must file_write -o create -f $TESTDIR/file$i \
       -b $BLOCKSZ -c $NUM_WRITES -d $i
    log_must zfs snapshot $SNAPFS.$i

    (( i = i + 1 ))
done

log_note "Remove all of the original files"
[[ -n $TESTDIR ]] && \
    log_must rm -rf $TESTDIR/file* > /dev/null 2>&1

i=1
while [[ $i -lt $COUNT ]]; do
    FILECOUNT=`ls $SNAPDIR.$i/file* | wc -l`
    typeset j=1
    while [ $j -lt $FILECOUNT ]; do
        log_must file_check $SNAPDIR.$i/file$j $j
        (( j = j + 1 ))
    done
    (( i = i + 1 ))
done

log_pass "All files are consistent"