disabling write caching on esx

How do i desabling write caching on esx.
sanjayakumarAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

jakethecatukCommented:
You can't do this within ESX - it has to be done at a controller level.  Most raid controllers allow you to change it thru the RAID bios.
0
bbnp2006Commented:
Most storage controllers have write-cache disabled by default if it is not battery-backed. Jakethecatuk is right, you might want to look at the controller side instead of looking inside the esx host config files.

May I ask the reason why you want to disable your write cache?
0
sanjayakumarAuthor Commented:
i need to persist the data even if any condition like hard reboot and crash happens
0
The Ultimate Tool Kit for Technolgy Solution Provi

Broken down into practical pointers and step-by-step instructions, the IT Service Excellence Tool Kit delivers expert advice for technology solution providers. Get your free copy for valuable how-to assets including sample agreements, checklists, flowcharts, and more!

bbnp2006Commented:
Normally there are write-back or write-through for caching type, you can choose write-through type to make sure you don't have data loss in event like above.
thoughts?
0
sanjayakumarAuthor Commented:
how can i select write-through type on esx
0
bbnp2006Commented:
You can only configure write-cache on the storage controller that your esx server is connecting to, not on your esx server. What storage arrage are you using?FC/iSCSI/NAS from which vendor?HP/Dell/IBM/etc
0
sanjayakumarAuthor Commented:
we are using  FC storage arrange and vendor promise array
0
sanjayakumarAuthor Commented:
Using FC storage arrange and vendor QLogic corp., EMULX
0
bbnp2006Commented:
You should be able to connect to the management interface of your FC controller and disable the write-cache option from there. Since you didn't mention the specific FC vendor, I can't tell you specificly where to go at this point.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
sanjayakumarAuthor Commented:
if the solution contains some example then it will be better
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
VMware

From novice to tech pro — start learning today.