ASP Developer Network - Brought to you by Steve Radich and BitShop, Inc. - http://www.bitshop.com

ASPDeveloper

ASPDeveloper.Net / VirtualServerFAQ.COM

Make sure you go to our home page for:

* Virtual Server 2005 FAQ
* ASP.Net 2.0 Information
* ASP.Net 2.0 Streaming Tutorials
* ASP.Net 2.0 HTML based Tutorials

Made possible by Business Internet Technology Shop (BitShop)

Virtual Server 2005

Recent Virtual Server 2005 posts

* newbie question - NIC Powerquest Deploy Center
* When can I add virtual machine additions
* Remote control does not work
* host memory
* follow up to Install questions unanswered for VS2005 under MS 2003 Server
* can someonne please help me with a virtual server networking problem
* Strange behavior when removing/re-adding virtual NIC"s
* Does VSMT support P2V for 2k3 Server SP1?
* Switching VS setup from Intel to AMD
* VSMT Deployment issue
* Exchange Virtual Machine Files with Virtual PC 2004
* Backup running VirtualMachines
* CGI Errors
* Red Hat Enterprise wont boot with more than 512MB ram
* About create a virtual sotrage for a cluster
* Occassional Lock Up...
* Virtual Server 2005 SP1 beta released; VHD technology licensed
* HP OpenView
* pause and resume vm in guest os in MS Virtual server 2005
* vsdm configuration wizzard error

Add Solution

Virtual Machine write-caching

Source: microsoft.public.virtualserver
Sent: 04/27/2005
From: David Cornes
Message:

We've recently had a small number of Virtual Machine corruptions after
unplanned failures of the host servers, and I'm investigation ways to
minimise the chances of these happening again.

Working on the principle that NTFS is *fairly* resilient I've changed the
automatic Save State option to Turn Off, as we have had issues with machines
resuming from saved states in the past. However I've also been looking at the
configuration of the VMs themselves, and I have a question regarding the
write-cache enabled option on the emulated IDE drives in Device Manager.

Sensible practice would be to disable this, as this feature enables the
hardware cache on an IDE hard disk, which could result in data loss in the
event of a failure. I wondered though whether it actually has any effect
under Virtual Server? Do the emulated drives just ignore this setting, or do
they actually have emulated caches as well? If so, since ultimately the host
server does plenty of caching of it's own, would there be any performance
loss (or gain?) from either enabling or disabling it, and how would this
weigh against any reliability gains?

Post Reply | This is Spam! | Mark as Spam

Related Messages

Post Reply | This is Spam! | Mark as Spam

Other groups

Virtual PC (Mac)(3592)	Virtual PC(12844)	Virtual PC (French)(496)
Virtual Server 2005(6245)

Our Sponsors

Virtual Server 2005 Info Here!
http://www.aspdeveloper.net

Wiki

Blogs

Articles

Image galleries

File galleries

Forums

Maps

Directories

ASP Developer Network (since 1996) - Brought to you by Steve Radich and BitShop, Inc. - http://www.bitshop.com
Copyright © 1997-2005 by BitShop, Inc. All Rights Reserved.
No content may be reproduced in any form without written permission from BitShop, Inc.
We will be honored to assist with reproduction rights on our material if you contact us.
We also can provide print articles for your magazine, private training seminars at your site, and conference presentations.
Thank you for visiting. Please bookmark our site if you found it useful!
If you wish to make a donation it will help further the development of these free resources: