From: R. Steve McKown <rsmckown@gmail.com>
Date: Wed, 16 Dec 2009 17:44:34 +0000 (-0700)
Subject: Merge the old svn esata repo, whose history is in the esata branch.
X-Git-Tag: 0.2~4
X-Git-Url: https://oss.titaniummirror.com/gitweb?p=ovzbpc.git;a=commitdiff_plain;h=1d5e423c190546314e20b73856af66b25b1a3d3d

Merge the old svn esata repo, whose history is in the esata branch.
---

diff --git a/README.esata b/README.esata
new file mode 100644
index 0000000..190c085
--- /dev/null
+++ b/README.esata
@@ -0,0 +1,17 @@
+The Dell PE1800 servers utilize the Intel ICH8 chipset, which will not do
+hot swap SATA.  However, "cold plug" is supported.
+
+1. Connect an ESATA to SATA connector inside the DELL PE1800 from SATA CON 0
+   to an external card cage bracket.  KingWin makes such an adapter cheap.
+2. Power up the PE1800.
+3. To use the external ESATA drive:
+   1. Connect the drive to the PE1800 via an ESATA cable.
+   2. Power it up.
+   3. Run the script: sudo esata mount.
+   4. Perform the IO operations with the mounted filesystem @ /media/esata.
+   5. Run the script: sudo esata umount.
+   6. Power down the drive.
+   7. Disconnect the drive's ESATA cable from the PE1800.
+
+Prerequisites:
+ - sudo apt-get install scsiadd
diff --git a/esata b/esata
new file mode 100755
index 0000000..130eb80
--- /dev/null
+++ b/esata
@@ -0,0 +1,110 @@
+#!/bin/bash
+
+DEV=/dev/sdb2
+MNT=/media/esata
+DELAY=5
+SCSIDEV=1 # This can change based on OS, etc.
+
+registered() {
+    if [ -b "$DEV" ]; then
+	[ -n "$VERBOSE" ] && echo "registered"
+	return 0
+    else
+	[ -n "$VERBOSE" ] && echo "not registered"
+	return 1
+    fi
+}
+
+mounted() {
+    if mount | grep -q "$MNT"; then
+	[ -n "$VERBOSE" ] && echo "mounted"
+	return 0
+    else
+	[ -n "$VERBOSE" ] && echo "not mounted"
+	return 1
+    fi
+}
+
+doregister() {
+    registered && return 0
+    [ -n "$VERBOSE" ] && echo "register SATA device"
+    scsiadd -a $SCSIDEV 0 0 0 >/dev/null || return 1
+    sleep $DELAY
+    registered || return 1
+    [ -n "$VERBOSE" ] && echo "register ok"
+    return 0
+}
+
+domount() {
+    mounted && return 0
+    doregister || return 1
+    [ -n "$VERBOSE" ] && echo "mount SATA $DEV"
+    mkdir -p "$MNT" || return 1
+    mount "$DEV" "$MNT" || return 1
+    [ -n "$VERBOSE" ] && echo "mount ok"
+    return 0
+}
+
+dounregister() {
+    registered || return 0
+    [ -n "$VERBOSE" ] && echo "unregister SATA device"
+    scsiadd -r $SCSIDEV 0 0 0 >/dev/null || return 1
+    sleep $DELAY
+    registered && return 1
+    [ -n "$VERBOSE" ] && echo "unregister ok"
+    return 0
+}
+
+doumount() {
+    if mounted; then
+	[ -n "$VERBOSE" ] && echo "unmount SATA $DEV"
+	umount "$MNT" || return 1
+	mounted && return 1
+	[ -n "$VERBOSE" ] && echo "unmount ok"
+    fi
+    dounregister || return 1
+    return 0
+}
+
+# MAIN
+
+unset VERBOSE
+if [ "$1" = "-v" ]; then
+    VERBOSE=1
+    shift
+fi
+if [ "$1" = "mount" ]; then
+    if domount; then
+	echo "esata mounted on $MNT"
+    else
+	echo "$0: cannot mount esata" >&2
+	dounregister
+    fi
+elif [ "$1" = "umount" -o "$1" = "unmount" ]; then
+    if doumount; then
+	echo "esata is unmounted"
+    else
+	echo "$0: cannot unmount esata" >&2
+	exit 1
+    fi
+elif [ "$1" = "register" ]; then
+    if doregister; then
+	echo "esata registered as $DEV"
+    else
+	echo "$0: cannot register esata" >&2
+	exit 1
+    fi
+elif [ "$1" = "status" ]; then
+    if mounted; then
+	echo "esata mounted on $MNT"
+    elif registered; then
+	echo "esata registered as $DEV but not mounted"
+    else
+	echo "esata is unregistered"
+    fi
+    #mount | grep "$DEV"
+    #scsiadd -p | grep "scsi1"
+else
+    echo "usage: $0 [-v] <mount|umount|register|status>"
+fi
+exit 0