| #!/bin/ksh |
| |
| # |
| # 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) 2012, 2016 by Delphix. All rights reserved. |
| # |
| |
| . $STF_SUITE/include/libtest.shlib |
| . $STF_SUITE/include/properties.shlib |
| . $STF_SUITE/tests/functional/nopwrite/nopwrite.shlib |
| |
| # |
| # Description: |
| # Verify that if the checksum on the origin and clone is sha256, any compression |
| # algorithm enables nopwrite. |
| # |
| # Strategy: |
| # 1. Create an origin dataset with compression and sha256 checksum. |
| # 2. Write a 64M file into the origin dataset. |
| # 3. For each of 4 randomly chosen compression types: |
| # 3a. Create a snap and clone (inheriting the checksum property) of the origin. |
| # 3b. Apply the compression property to the clone. |
| # 3c. Write the same 64M of data into the file that exists in the clone. |
| # 3d. Verify that no new space was consumed. |
| # |
| |
| verify_runnable "global" |
| origin="$TESTPOOL/$TESTFS" |
| log_onexit cleanup |
| |
| function cleanup |
| { |
| datasetexists $origin && log_must zfs destroy -R $origin |
| log_must zfs create -o mountpoint=$TESTDIR $origin |
| } |
| |
| log_assert "nopwrite works with sha256 and any compression algorithm" |
| |
| log_must zfs set compress=on $origin |
| log_must zfs set checksum=sha256 $origin |
| dd if=/dev/urandom of=$TESTDIR/file bs=1024k count=$MEGS conv=notrunc \ |
| >/dev/null 2>&1 || log_fail "initial dd failed." |
| |
| # Verify nop_write for 4 random compression algorithms |
| for i in $(get_rand_compress 4); do |
| zfs snapshot $origin@a || log_fail "zfs snap failed" |
| log_must zfs clone -o compress=$i $origin@a $origin/clone |
| dd if=/$TESTDIR/file of=/$TESTDIR/clone/file bs=1024k count=$MEGS \ |
| conv=notrunc >/dev/null 2>&1 || log_fail "dd failed." |
| log_must verify_nopwrite $origin $origin@a $origin/clone |
| zfs destroy -R $origin@a || log_fail "zfs destroy failed" |
| done |
| |
| log_pass "nopwrite works with sha256 and any compression algorithm" |