Add GEOM_MIRROR class which provide RAID1 functionality and has many useful

features. The gmirror(8) utility should be used for control of this class.
There is no manual page yet, but I'm working on it with keramida@.

Many useful tests provided by:	simon (thank you!)
Some ideas from:		scottl, simon, phk

8 files changed, 361 insertions, 0 deletions

diff --git a/tools/regression/geom_mirror/Makefile b/tools/regression/geom_mirror/Makefile
new file mode 100644
index 0000000..88687b1
--- /dev/null
+++ b/tools/regression/geom_mirror/Makefile
@@ -0,0 +1,8 @@
+#
+# $FreeBSD$
+#
+# Regression tests for geom_mirror.
+#
+
+test:
+	@sh runtests.sh
diff --git a/tools/regression/geom_mirror/runtests.sh b/tools/regression/geom_mirror/runtests.sh
new file mode 100644
index 0000000..7e30b95
--- /dev/null
+++ b/tools/regression/geom_mirror/runtests.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+# $FreeBSD$
+
+dir=`dirname $0`
+
+gmirror load >/dev/null 2>&1
+for ts in `dirname $0`/test-*.sh; do
+	sh $ts
+done
+gmirror unload >/dev/null 2>&1
diff --git a/tools/regression/geom_mirror/test-1.sh b/tools/regression/geom_mirror/test-1.sh
new file mode 100644
index 0000000..e521564
--- /dev/null
+++ b/tools/regression/geom_mirror/test-1.sh
@@ -0,0 +1,32 @@
+#!/bin/sh
+# $FreeBSD$
+
+name="test"
+base=`basename $0`
+us0=45
+us1=`expr $us0 + 1`
+us2=`expr $us0 + 2`
+
+mdconfig -a -t malloc -s 1M -u $us0 || exit 1
+mdconfig -a -t malloc -s 2M -u $us1 || exit 1
+mdconfig -a -t malloc -s 3M -u $us2 || exit 1
+sleep 1
+
+gmirror label $name /dev/md${us0} /dev/md${us1} /dev/md${us2} || exit 1
+
+# Size of created device should be 1MB - 512b.
+
+size=`diskinfo /dev/mirror/${name} | awk '{print $3}'`
+
+if [ $size -eq 1048064 ]; then
+	echo "PASS"
+else
+	echo "FAIL"
+fi
+
+gmirror remove $name md${us0}
+gmirror remove $name md${us1}
+gmirror remove $name md${us2}
+mdconfig -d -u $us0
+mdconfig -d -u $us1
+mdconfig -d -u $us2
diff --git a/tools/regression/geom_mirror/test-2.sh b/tools/regression/geom_mirror/test-2.sh
new file mode 100644
index 0000000..89bfdd4
--- /dev/null
+++ b/tools/regression/geom_mirror/test-2.sh
@@ -0,0 +1,57 @@
+#!/bin/sh
+# $FreeBSD$
+
+name="test"
+base=`basename $0`
+balance="round-robin"
+us0=45
+us1=`expr $us0 + 1`
+us2=`expr $us0 + 2`
+ddbs=2048
+nblocks1=1024
+nblocks2=`expr $nblocks1 / \( $ddbs / 512 \)`
+src=`mktemp /tmp/$base.XXXXXX` || exit 1
+dst=`mktemp /tmp/$base.XXXXXX` || exit 1
+
+dd if=/dev/random of=${src} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+
+mdconfig -a -t malloc -s `expr $nblocks1 + 1` -u $us0 || exit 1
+mdconfig -a -t malloc -s `expr $nblocks1 + 1` -u $us1 || exit 1
+mdconfig -a -t malloc -s `expr $nblocks1 + 1` -u $us2 || exit 1
+sleep 1
+
+gmirror label -b $balance $name /dev/md${us0} /dev/md${us1} /dev/md${us2} || exit 1
+
+dd if=${src} of=/dev/mirror/${name} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+
+dd if=/dev/mirror/${name} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+dd if=/dev/md${us0} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+dd if=/dev/md${us1} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+dd if=/dev/md${us2} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+gmirror remove $name md${us0} md${us1} md${us2}
+mdconfig -d -u $us0
+mdconfig -d -u $us1
+mdconfig -d -u $us2
+rm -f ${src} ${dst}
diff --git a/tools/regression/geom_mirror/test-3.sh b/tools/regression/geom_mirror/test-3.sh
new file mode 100644
index 0000000..67a4151
--- /dev/null
+++ b/tools/regression/geom_mirror/test-3.sh
@@ -0,0 +1,68 @@
+#!/bin/sh
+# $FreeBSD$
+
+name="test"
+base=`basename $0`
+balance="round-robin"
+us0=45
+us1=`expr $us0 + 1`
+us2=`expr $us0 + 2`
+ddbs=2048
+nblocks1=1024
+nblocks2=`expr $nblocks1 / \( $ddbs / 512 \)`
+src=`mktemp /tmp/$base.XXXXXX` || exit 1
+dst=`mktemp /tmp/$base.XXXXXX` || exit 1
+
+dd if=/dev/random of=${src} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+
+mdconfig -a -t malloc -s `expr $nblocks1 + 1` -u $us0 || exit 1
+mdconfig -a -t malloc -s `expr $nblocks1 + 1` -u $us1 || exit 1
+mdconfig -a -t malloc -s `expr $nblocks1 + 1` -u $us2 || exit 1
+sleep 1
+
+gmirror label -b $balance $name /dev/md${us0} /dev/md${us1} /dev/md${us2} || exit 1
+
+dd if=${src} of=/dev/mirror/${name} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+
+dd if=/dev/mirror/${name} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+gmirror remove $name md${us0}
+dd if=/dev/mirror/${name} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+gmirror remove $name md${us1}
+dd if=/dev/mirror/${name} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+gmirror remove $name md${us2}
+dd if=/dev/mirror/${name} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+# mirror/${name} should be removed.
+if [ -c /dev/${name} ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+mdconfig -d -u $us0
+mdconfig -d -u $us1
+mdconfig -d -u $us2
+rm -f ${src} ${dst}
diff --git a/tools/regression/geom_mirror/test-4.sh b/tools/regression/geom_mirror/test-4.sh
new file mode 100644
index 0000000..0b764ca
--- /dev/null
+++ b/tools/regression/geom_mirror/test-4.sh
@@ -0,0 +1,68 @@
+#!/bin/sh
+# $FreeBSD$
+
+name="test"
+base=`basename $0`
+balance="load"
+us0=45
+us1=`expr $us0 + 1`
+us2=`expr $us0 + 2`
+ddbs=2048
+nblocks1=1024
+nblocks2=`expr $nblocks1 / \( $ddbs / 512 \)`
+src=`mktemp /tmp/$base.XXXXXX` || exit 1
+dst=`mktemp /tmp/$base.XXXXXX` || exit 1
+
+dd if=/dev/random of=${src} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+
+mdconfig -a -t malloc -s `expr $nblocks1 + 1` -u $us0 || exit 1
+mdconfig -a -t malloc -s `expr $nblocks1 + 1` -u $us1 || exit 1
+mdconfig -a -t malloc -s `expr $nblocks1 + 1` -u $us2 || exit 1
+sleep 1
+
+gmirror label -b $balance $name /dev/md${us0} /dev/md${us1} /dev/md${us2} || exit 1
+
+dd if=${src} of=/dev/mirror/${name} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+
+dd if=/dev/mirror/${name} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+gmirror remove $name md${us0}
+dd if=/dev/mirror/${name} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+gmirror remove $name md${us1}
+dd if=/dev/mirror/${name} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+gmirror remove $name md${us2}
+dd if=/dev/mirror/${name} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+# mirror/${name} should be removed.
+if [ -c /dev/${name} ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+mdconfig -d -u $us0
+mdconfig -d -u $us1
+mdconfig -d -u $us2
+rm -f ${src} ${dst}
diff --git a/tools/regression/geom_mirror/test-5.sh b/tools/regression/geom_mirror/test-5.sh
new file mode 100644
index 0000000..d1958d5
--- /dev/null
+++ b/tools/regression/geom_mirror/test-5.sh
@@ -0,0 +1,68 @@
+#!/bin/sh
+# $FreeBSD$
+
+name="test"
+base=`basename $0`
+balance="split"
+us0=45
+us1=`expr $us0 + 1`
+us2=`expr $us0 + 2`
+ddbs=8192
+nblocks1=1024
+nblocks2=`expr $nblocks1 / \( $ddbs / 512 \)`
+src=`mktemp /tmp/$base.XXXXXX` || exit 1
+dst=`mktemp /tmp/$base.XXXXXX` || exit 1
+
+dd if=/dev/random of=${src} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+
+mdconfig -a -t malloc -s `expr $nblocks1 + 1` -u $us0 || exit 1
+mdconfig -a -t malloc -s `expr $nblocks1 + 1` -u $us1 || exit 1
+mdconfig -a -t malloc -s `expr $nblocks1 + 1` -u $us2 || exit 1
+sleep 1
+
+gmirror label -b $balance -s `expr $ddbs / 2` $name /dev/md${us0} /dev/md${us1} /dev/md${us2} || exit 1
+
+dd if=${src} of=/dev/mirror/${name} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+
+dd if=/dev/mirror/${name} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+gmirror remove $name md${us0}
+dd if=/dev/mirror/${name} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+gmirror remove $name md${us1}
+dd if=/dev/mirror/${name} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+gmirror remove $name md${us2}
+dd if=/dev/mirror/${name} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+# mirror/${name} should be removed.
+if [ -c /dev/${name} ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+mdconfig -d -u $us0
+mdconfig -d -u $us1
+mdconfig -d -u $us2
+rm -f ${src} ${dst}
diff --git a/tools/regression/geom_mirror/test-6.sh b/tools/regression/geom_mirror/test-6.sh
new file mode 100644
index 0000000..db36726
--- /dev/null
+++ b/tools/regression/geom_mirror/test-6.sh
@@ -0,0 +1,50 @@
+#!/bin/sh
+# $FreeBSD$
+
+name="test"
+base=`basename $0`
+balance="split"
+us0=45
+us1=`expr $us0 + 1`
+us2=`expr $us0 + 2`
+ddbs=8192
+nblocks1=1024
+nblocks2=`expr $nblocks1 / \( $ddbs / 512 \)`
+src=`mktemp /tmp/$base.XXXXXX` || exit 1
+dst=`mktemp /tmp/$base.XXXXXX` || exit 1
+
+dd if=/dev/random of=${src} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+
+mdconfig -a -t malloc -s `expr $nblocks1 + 1` -u $us0 || exit 1
+mdconfig -a -t malloc -s `expr $nblocks1 + 1` -u $us1 || exit 1
+mdconfig -a -t malloc -s `expr $nblocks1 + 1` -u $us2 || exit 1
+sleep 1
+
+gmirror label -b $balance -s `expr $ddbs / 2` $name /dev/md${us0} /dev/md${us1} || exit 1
+
+dd if=${src} of=/dev/mirror/${name} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+dd if=/dev/zero of=/dev/md${us2} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+
+dd if=/dev/mirror/${name} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+# Connect disk to the mirror.
+gmirror insert ${name} md${us2}
+# Wait for synchronization.
+sleep 1
+dd if=/dev/md${us2} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
+if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then
+	echo "FAIL"
+else
+	echo "PASS"
+fi
+
+gmirror remove $name md${us0} md${us1} md${us2}
+mdconfig -d -u $us0
+mdconfig -d -u $us1
+mdconfig -d -u $us2
+rm -f ${src} ${dst}