Test configs for md, dm, and ramdisk style block devices

For the sake of completeness we need to validate everything works
well not just on IDE or SCSI drives.  But we need to verify a
zpool configured on top of the Linux virtual block devices.
These scripts simply that testing process, and have shown that
while everything is good on top of a ram disk.  Right now the
code base panics the kernel when layered on top of either an
md or dm style device.  For the moment don't do that.

scripts/zpool-config/dm0-raid0.sh

@@ -0,0 +1,55 @@
+#!/bin/bash
+#
+# Four disk Raid-0 DM in a single Raid-0 Configuration
+#
+
+PVCREATE=${PVCREATE:-/sbin/pvcreate}
+PVREMOVE=${PVREMOVE:-/sbin/pvremove}
+PVDEVICES=${PVDEVICES:-"/dev/sd[abcd]"}
+
+VGCREATE=${VGCREATE:-/sbin/vgcreate}
+VGREMOVE=${VGREMOVE:-/sbin/vgremove}
+VGNAME=${VGNAME:-"vg_tank"}
+
+LVCREATE=${LVCREATE:-/sbin/lvcreate}
+LVREMOVE=${LVREMOVE:-/sbin/lvremove}
+LVNAME=${LVNAME:-"lv_tank"}
+LVSTRIPES=${LVSTRIPES:-4}
+LVSIZE=${LVSIZE:-4G}
+
+DEVICES="/dev/${VGNAME}/${LVNAME}"
+
+zpool_create() {
+	# Remove EFI labels which cause pvcreate failure
+	for DEVICE in ${PVDEVICES}; do
+		dd if=/dev/urandom of=${DEVICE} bs=1k count=32 &>/dev/null
+	done
+
+	msg ${PVCREATE} -f ${PVDEVICES}
+	${PVCREATE} -f ${PVDEVICES} || exit 1
+
+	msg ${VGCREATE} ${VGNAME} ${PVDEVICES}
+	${VGCREATE} ${VGNAME} ${PVDEVICES} || exit 2
+
+	msg ${LVCREATE} --size=${LVSIZE} --stripes=${LVSTRIPES} \
+		--name=${LVNAME} ${VGNAME}
+	${LVCREATE} --size=${LVSIZE} --stripes=${LVSTRIPES} \
+		--name=${LVNAME} ${VGNAME} || exit 3
+
+	msg ${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} ${DEVICES}
+	${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} ${DEVICES} || exit 4
+}
+
+zpool_destroy() {
+	msg ${ZPOOL} destroy ${ZPOOL_NAME}
+	${ZPOOL} destroy ${ZPOOL_NAME} || exit 1
+
+	msg ${LVREMOVE} -f ${VGNAME}/${LVNAME}
+	${LVREMOVE} -f ${VGNAME}/${LVNAME} || exit 2
+
+	msg ${VGREMOVE} -f ${VGNAME}
+	${VGREMOVE} -f ${VGNAME} || exit 3
+
+	msg ${PVREMOVE} ${PVDEVICES}
+	${PVREMOVE} ${PVDEVICES} || exit 4
+}

scripts/zpool-config/md0-raid10.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+#
+# Four disk Raid-10 in a single Raid-0 Configuration
+#
+
+MDADM=${MDADM:-/sbin/mdadm}
+MDDEVICES=${MDDEVICES:-"/dev/sd[abcd]"}
+MDCOUNT=${MDCOUNT:-4}
+MDRAID=${MDRAID:-10}
+
+DEVICES="/dev/md0"
+
+zpool_create() {
+	msg ${MDADM} --create ${DEVICES} --level=${MDRAID} \
+		--raid-devices=${MDCOUNT} ${MDDEVICES}
+	${MDADM} --create ${DEVICES} --level=${MDRAID} \
+		--raid-devices=${MDCOUNT} ${MDDEVICES} || exit 1
+
+	msg ${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} ${DEVICES}
+	${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} ${DEVICES} || exit 2
+}
+
+zpool_destroy() {
+	msg ${ZPOOL} destroy ${ZPOOL_NAME}
+	${ZPOOL} destroy ${ZPOOL_NAME} || exit 1
+
+	msg ${MDADM} --manage --stop ${DEVICES}
+	${MDADM} --manage --stop ${DEVICES} || exit 2
+
+	msg ${MDADM} --zero-superblock ${MDDEVICES}
+	${MDADM} --zero-superblock ${MDDEVICES} || exit 3
+}

scripts/zpool-config/md0-raid5.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+#
+# Four disk Raid-5 in a single Raid-0 Configuration
+#
+
+MDADM=${MDADM:-/sbin/mdadm}
+MDDEVICES=${MDDEVICES:-"/dev/sd[abcd]"}
+MDCOUNT=${MDCOUNT:-4}
+MDRAID=${MDRAID:-5}
+
+DEVICES="/dev/md0"
+
+zpool_create() {
+	msg ${MDADM} --create ${DEVICES} --level=${MDRAID} \
+		--raid-devices=${MDCOUNT} ${MDDEVICES}
+	${MDADM} --create ${DEVICES} --level=${MDRAID} \
+		--raid-devices=${MDCOUNT} ${MDDEVICES} || exit 1
+
+	msg ${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} ${DEVICES}
+	${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} ${DEVICES} || exit 2
+}
+
+zpool_destroy() {
+	msg ${ZPOOL} destroy ${ZPOOL_NAME}
+	${ZPOOL} destroy ${ZPOOL_NAME} || exit 1
+
+	msg ${MDADM} --manage --stop ${DEVICES}
+	${MDADM} --manage --stop ${DEVICES} || exit 2
+
+	msg ${MDADM} --zero-superblock ${MDDEVICES}
+	${MDADM} --zero-superblock ${MDDEVICES} || exit 3
+}

scripts/zpool-config/ram0-raid0.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+#
+# Single ram disk /dev/ram0 Raid-0 Configuration
+#
+
+DEVICES="/dev/ram0"
+
+zpool_create() {
+	msg ${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} ${DEVICES}
+	${ZPOOL} create ${FORCE_FLAG} ${ZPOOL_NAME} ${DEVICES} || exit 1
+}
+
+zpool_destroy() {
+	msg ${ZPOOL} destroy ${ZPOOL_NAME}
+	${ZPOOL} destroy ${ZPOOL_NAME} || exit 1
+}