jump to navigation

VMWARE ESX Server slow write when using NFS as a Data-Store. April 4, 2008

Posted by daakeung in Linux, Virtualization, Vmware ESX.
Tags: , , , ,

I’ve been playing around with virtualization for quite sometime not, at the beginning I wasn’t too interested. In fact a friend of mine, Q hooked on this thing like a junkie on crack…heh…. need less to say, I’ve been testing HA, DRS and Vmotion stuff out.

To have all your VMs accessible to your esx servers at any time, you would need a common storage amongst them, the Data Store is this case.

Any of you tested with NFS, would notice because of the sync being done when writing a file to the nfs store, dramatic decrease in throughput for the data, can result in VMs crashing and sometimes in Windows, disk errors show up in the event log.

I currently run Centos 5 (latest update)

/VMWARE-HOSTS x.x.x.x(rw,async,no_subtree_check,nohide,no_root_squash) x.x.x.x(rw,async,no_subtree_check,nohide,no_root_squash)
I was reaching throughput of 9 – 16 mbit with sync, using async throughput has increased.

Now I get more than 80mbit.



1. www.hnefatafl.info - May 9, 2013

You know therefore considerably relating to this topic, produced
me in my view imagine it from numerous various angles. Its like women and men are not fascinated unless it is
one thing to accomplish with Woman gaga! Your own stuffs outstanding.

All the time care for it up!

2. http://chongkirb.xanga.com/ - May 25, 2013

Once menstruation begins,an egg(s) is ovulated each month before menopause.
Having a powerful support system of friends is essential for
women over 40 because they need to rely on people sometimes.
If you might be pregnant and possess tinnitus, talk to your doctor about
how it is possible to treat it naturally. As the women need to put additional
weight during pregnancy, they started exploring options to shred
the extra pounds and acquire back their old figure.

If you are a lady and desire to get pregnant however are over 40 years old you might desire to think about some of these health hazards associated with
pregnancy over 40.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

%d bloggers like this: