View unanswered posts | View active topics It is currently Thu Nov 14, 2019 6:05 am

Reply to topic  [ 3 posts ] 
 Asus-server DSEB-DG & VT-d 
Author Message

Joined: Sun Mar 27, 2011 11:30 am
Posts: 3
Reply with quote
Post Asus-server DSEB-DG & VT-d
Hello, this is my first post and i hope somebody can help me...

At home i'm having a luxury problem.

I'm running 2 seperate machines: 1 ESXi & 1 M$ Storage server, both own storage...

Both running decent hardware as in server components:

ESX ASUS DSEB-DG Serverboard
2 * XEON L5420
ESX LSI 8344 ELP array controller
M$ Storage LSI 8888 ELP array controller

To save some money on electricity and an upgrade from 4.0 to 4.1u1, i decided to use VT-d and move the storage server's array-controller + drives to the ESX environment.

Unfortunately, i'm unable to use the VT-d feature. After i turn it on in the BIOS, (and get past the hanging VFAT loaded message), the datastore gets missing (unknown VM's).


I tried a lot of stuff for a few days now, updated the devices firmware's, re-created the arrays, cleared CMOS, turned off onboard luxury devices as Marvell and Intel Matrix chipsets, PXE. No luck.

Now i'm not even able to get past the "vfat loaded successfully" message with VT-d enabled.


Could it be a solution to install ESXi on a USB stick, boot from it, and when the device-drivers get loaded (with passthrough support..), that the datastore remains?

I'm starting to become a little desperate with my overrated system(s).

Thanks for any attention...

Sun Mar 27, 2011 11:30 pm

Joined: Sun Mar 27, 2011 11:30 am
Posts: 3
Reply with quote
Post Re: Asus-server DSEB-DG & VT-d

That i did not do this earlier....

Running it from an USB stick....

Turned on VT-d (also disabled all intel sata/pata interfaces to bypass VFAT hanging, what a crap intel creates and/or such a bad VMware support on that) and i'm able to keep my array!!!

Anybody knows about ESX on USB? Is that a reliable situation? It just boots and stays resident isn't it? Here and there a write maybe, or does it wear out after 2 weeks and i'm cooked?

Imagine it wears out, am i able to install on a fresh stick and able to add the old array without data-loss?

Thanks in advance,


Mon Mar 28, 2011 11:24 am
Site Admin

Joined: Mon Mar 16, 2009 10:13 pm
Posts: 3880
Reply with quote
Post Re: Asus-server DSEB-DG & VT-d
Once ESXi has booted it create a RAM disk and most I/O is to it. I've been running ESXi on the same USB for at least 3 years so it's an option that won't fail early.

You can use vicfg-cfgbackup from the vCLI or Get-VMHostFirmware from PowerCLI to take a system backup. In the case of a USB flash device failure you would install ESXi onto a new USB flash drive, patch it and then restore the backup you took.

Dave Mishchenko
VMware vExpert 2009-2013
Now available - VMware ESXi: Planning, Implementation, and Security
Also available - vSphere Quick Start Guide

Mon Mar 28, 2011 3:49 pm
Display posts from previous:  Sort by  
Reply to topic   [ 3 posts ] 

Who is online

Users browsing this forum: No registered users and 2 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group.
Designed by STSoftware for PTF.