From 4576f09d8d112ebe575f2f9c6b3132c9d00f333a Mon Sep 17 00:00:00 2001
From: ababak <ababak@gmail.com>
Date: Sun, 24 Apr 2016 20:38:25 +0300
Subject: [PATCH 1/2] Added asynchronous shutdown support

---
 esxidown.sh | 89 +++++++++++++++++++++++++++++++++--------------------
 1 file changed, 55 insertions(+), 34 deletions(-)

diff --git a/esxidown.sh b/esxidown.sh
index b83a953..d3eb153 100644
--- a/esxidown.sh
+++ b/esxidown.sh
@@ -1,10 +1,20 @@
 #!/bin/sh
-# ESXi 5.1 host automated shutdown script
+# ESXi 5.1+ host automated asynchronous shutdown script
+
+LOG_FILE=/vmfs/volumes/DL360G7_disk/esxidown.log
+
+exec 2>>${LOG_FILE}
+
+message () {
+	echo "$(date '+%D %H:%M:%S') [esxidown] $1">>${LOG_FILE}
+}
+
 
 # these are the VM IDs to shutdown in the order specified
 # use the SSH shell, run "vim-cmd vmsvc/getallvms" to get ID numbers
 # specify IDs separated by a space
 SERVERIDS=$(vim-cmd vmsvc/getallvms | sed -e '1d' -e 's/ \[.*$//' | awk '$1 ~ /^[0-9]+$/ {print $1}')
+VALIDATEIDS=''
 
 # New variable to allow script testing, assuming the vim commands all work to issue shutdowns
 # can be "0" or "1"
@@ -12,38 +22,15 @@ TEST=0
 
 # script waits WAIT_TRYS times, WAIT_TIME seconds each time
 # number of times to wait for a VM to shutdown cleanly before forcing power off.
-WAIT_TRYS=20
+WAIT_TRIES=20
 
 # how long to wait in seconds each time for a VM to shutdown.
 WAIT_TIME=10
 
 # ------ DON'T CHANGE BELOW THIS LINE ------
 
-validate_shutdown()
-{
-    vim-cmd vmsvc/power.getstate $SRVID | grep -i "off" > /dev/null 2<&1
-    STATUS=$?
-
-    if [ $STATUS -ne 0 ]; then
-        if [ $TRY -lt $WAIT_TRYS ]; then
-            # if the vm is not off, wait for it to shut down
-            TRY=$((TRY + 1))
-            echo "Waiting for guest VM ID $SRVID to shutdown (attempt #$TRY)..."
-            sleep $WAIT_TIME
-            validate_shutdown
-        else
-            # force power off and wait a little (you could use vmsvc/power.suspend here instead)
-            echo "Unable to gracefully shutdown guest VM ID $SRVID... forcing power off."
-            if [ $TEST -eq 0 ]; then
-                vim-cmd vmsvc/power.off $SRVID
-            fi
-            sleep $WAIT_TIME
-        fi
-    fi
-}
-
 # enter maintenance mode immediately
-echo "Entering maintenance mode..."
+message "Entering maintenance mode..."
 if [ $TEST -eq 0 ]; then
     esxcli system maintenanceMode set -e true -t 0 &
 fi
@@ -51,34 +38,68 @@ fi
 # read each line as a server ID and shutdown/poweroff
 for SRVID in $SERVERIDS
 do
-    TRY=0
-
     vim-cmd vmsvc/power.getstate $SRVID | grep -i "off\|Suspended" > /dev/null 2<&1
     STATUS=$?
 
     if [ $STATUS -ne 0 ]; then
-        echo "Attempting shutdown of guest VM ID $SRVID..."
+        message "Attempting shutdown of guest VM ID $SRVID"
         if [ $TEST -eq 0 ]; then
             vim-cmd vmsvc/power.shutdown $SRVID
         fi
-        validate_shutdown
+        VALIDATEIDS="$VALIDATEIDS $SRVID"
     else
-        echo "Guest VM ID $SRVID already off..."
+        message "Guest VM ID $SRVID already off"
     fi
 done
 
+# read each line as a server ID and shutdown/poweroff
+TRY=1
+while [ $TRY -le $WAIT_TRIES ]
+do
+	SLOWIDS=''
+	for SRVID in $VALIDATEIDS
+	do
+		vim-cmd vmsvc/power.getstate $SRVID | grep -i "off\|Suspended" > /dev/null 2<&1
+		STATUS=$?
+
+		if [ $STATUS -ne 0 ]; then
+			# if the vm is not off, wait for it to shut down
+			message "Waiting for guest VM ID $SRVID to shutdown (attempt #$TRY)"
+			SLOWIDS="$SLOWIDS $SRVID"
+		fi
+	done
+	VALIDATEIDS="$SLOWIDS"
+    if [ "$VALIDATEIDS"!="" ]; then
+		sleep $WAIT_TIME
+	else
+		message "Everybody is sleeping"
+		break
+	fi
+	TRY=$((TRY + 1))
+done
+
+for SRVID in $VALIDATEIDS
+do
+	# force power off and wait a little (you could use vmsvc/power.suspend here instead)
+	message "Unable to gracefully shutdown guest VM ID $SRVID, forcing power off"
+	if [ $TEST -eq 0 ]; then
+		vim-cmd vmsvc/power.off $SRVID
+	fi
+done
+
+
 # guest vm shutdown complete
-echo "Guest VM shutdown complete..."
+message "Guest VM shutdown complete"
 
 # shutdown the ESXi host
-echo "Shutting down ESXi host after 10 seconds..."
+message "Shutting down ESXi host after 10 seconds"
 if [ $TEST -eq 0 ]; then
     esxcli system shutdown poweroff -d 10 -r "Automated ESXi host shutdown - esxidown.sh"
 fi
 
 # exit maintenance mode immediately before server has a chance to shutdown/power off
 # NOTE: it is possible for this to fail, leaving the server in maintenance mode on reboot!
-echo "Exiting maintenance mode..."
+message "Exiting maintenance mode"
 if [ $TEST -eq 0 ]; then
     esxcli system maintenanceMode set -e false -t 0
 fi

From 971f8e21c69678a16cc24d2f58ddd865b9b9ec13 Mon Sep 17 00:00:00 2001
From: ababak <ababak@gmail.com>
Date: Sun, 24 Apr 2016 21:43:05 +0300
Subject: [PATCH 2/2] Added info about ESXi 6

---
 esxidown.sh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/esxidown.sh b/esxidown.sh
index d3eb153..a893d25 100644
--- a/esxidown.sh
+++ b/esxidown.sh
@@ -1,6 +1,9 @@
 #!/bin/sh
 # ESXi 5.1+ host automated asynchronous shutdown script
+# Tested on the free version of VMware ESXi 6
+# Asynchronous shutdown added by Andrey Babak <ababak@gmail.com>, 2016
 
+# Specify log file path
 LOG_FILE=/vmfs/volumes/DL360G7_disk/esxidown.log
 
 exec 2>>${LOG_FILE}