fs_flush.pl revision f2fc321be9b4df7748e8c31a5edd154b0177b139
#
# 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.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
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# CDDL HEADER END
#
#
# Copyright 2007 Sun Microsystems, Inc. All rights reserved.
# Use is subject to license terms.
#
# ident "%Z%%M% %I% %E% SMI"
#
# Put commands in here to flush the file system cache after
# file set creation but prior to steady state
#
# For most file systems, filebench already handles fs cache flushing
# For ZFS, it needs some help, so this script does
# "zpool export <poolname>" then "zpool import <poolname>"
#
#
# if not zfs, inform user and exit.
#
print "filesystem type is: $fs, no action required, so exiting\n";
exit(0);
}
#
# directory path name $dir
#
# Example:
# # zfs list -H
# tank 164K 24.0G 19K /tank
# tank/a 18K 24.0G 18K /tank/a
# tank/b 18K 24.0G 18K /wombat
# #
# # ./fs_flush zfs /wombat
# 'zpool export tank'
# 'zpool import tank'
# #
#
# Get a list of zfs file systems mounted locally
#
# Compare the list with the supplied directory path name
#
chomp @zlist;
foreach ( @zlist ) {
#
# For listed zfs file systems, extract the root and
# mount point information
#
my $zline = $_;
# See if the supplied directory path includes this mount point
#
# We have a winner! The root name up to the
# first forward slash is the pool name
#
# Do the cache flushing
print "'zpool export $pool'\n";
system("zpool export $pool");
print "'zpool import $pool'\n";
system("zpool import $pool");
exit(0);
}
}