commit raid restore scripts

hdd/disable_wc.sh

+#!/bin/sh
+
+# disable WriteCache on SSD
+
+is_hdd()
+{
+    hdparm -i "$1" | grep -q "Model=WDC"
+}
+
+for dev in /dev/sd? ; do
+    is_hdd $dev && continue
+    echo "SSD: $dev"
+    hdparm -W0 $dev
+done

hdd/listmdstat.sh

@@ -6,4 +6,4 @@ for i in /dev/sd? ; do
 done
 
 # TODO: csed?
-cat /proc/mdstat | egrep --color "(NONONO$HDDLIST)"
\ No newline at end of file
+cat /proc/mdstat | egrep --color "(NONONO$HDDLIST)"

hdd/raid_restore.sh

@@ -19,7 +19,7 @@ get_dm_status()
 
 dmsetup remove_all
 
-for dev in /dev/sd* ; do
+for dev in /dev/sd? ; do
     ARRAYUUID=$(get_array_uuid $dev)
     [ -n "$ARRAYUUID" ] && MDDEV=$(get_md_by_uuid $ARRAYUUID) || MDDEV=''
     STATUS="$(get_dm_status $MDDEV)"

hdd/repair_ssd.sh

+#!/bin/sh
+
+# disable WriteCache on SSD
+
+is_hdd()
+{
+    hdparm -i "$1" | grep -q "Model=WDC"
+}
+
+exit
+
+mdadm /dev/$md --remove /dev/sda1
+mdadm /dev/$md --add /dev/sda1
+echo 'repair' >/sys/block/$md/md/sync_action
+
+for md in /dev/md?* ; do
+    is_hdd $dev && continue
+    echo "SSD: $dev"
+    hdparm -W0 $dev
+done

hdd/set_writemostly.sh

+#!/bin/sh
+
+is_hdd()
+{
+    hdparm -i "$1" | grep -q "Model=WDC"
+}
+
+use_in_md()
+{
+    mdadm -D "$1" | grep -q "$2"
+}
+
+for dev in /dev/sd? ; do
+    is_hdd $dev || continue
+    echo
+    echo "HDD: $dev"
+    for md in /dev/md?* ; do
+        use_in_md "$md" "$dev" || continue
+        echo "   used in $md, set writemostly...."
+        devpart="$(mdadm -D "$md" | grep "$dev" | sed -e "s|.*$dev|$dev|")"
+        [ -b "$devpart" ] || exit
+        echo writemostly >/sys/block/$(basename $md)/md/dev-$(basename $devpart)/state
+    done
+done