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RE: [Xen-users] Home Xen hypervisor for master's project

  • To: "Ady Deac" <ady@xxxxxxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
  • Date: Sun, 20 Feb 2011 19:17:56 +1100
  • Cc:
  • Delivery-date: Sun, 20 Feb 2011 00:19:19 -0800
  • List-id: Xen user discussion <xen-users.lists.xensource.com>
  • Thread-index: AcvQyUF/yTBeraY6ReaZWDLOSz0nNQADPG8g
  • Thread-topic: [Xen-users] Home Xen hypervisor for master's project

> Hi Joseph, guys,
> I must say that ECC is kinda market bull. I did used ECC enabled server
> and regular servers built from consumer parts. I've noticed no
> difference whatsoever.

You do understand what ECC is right? It's not a performance thing, it's an 
error detection/recovery mechanism.

When everything is working properly you won't notice a thing. When you get a 
single bit memory error you shouldn't notice any problems apart from a message 
about a faulty memory module which you can then replace. When you get a double 
bit memory error you'll know that you've had a memory error instead of getting 
a random crash or data corruption problem with no idea of the cause.

I've seen ECC catch memory errors a few times, so people aren't just making 
this stuff up.


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