topic Memory in AFF

Memory

saranraj456 — Thu, 05 Jun 2025 06:53:40 GMT

Hi Folks,

What does memory in netapp devices mean?

Does it an ECC or NVRam?

Can you provide some basic documents related to that..

Thanks in advance!!

Memory

peter_lehmann — Wed, 01 Jun 2011 07:20:47 GMT

This is a Technical Report from NetApp explaining the basics of WAFL,Ontap,Hardware:

http://www.netapp.com/us/library/technical-reports/tr-3001.html

Additionaly I'd recommend you to attend a NetApp Training (Ontap Administration) where all of your questions are answered in detail.

Peter

Memory

saranraj456 — Wed, 01 Jun 2011 17:05:12 GMT

Hi Peter,

I am not able get the answer from the link,can you please shed some light on that.?

Memory

shaunjurr — Wed, 01 Jun 2011 23:53:41 GMT

Hi,

As much as one would like to view your constant architectural questions with a positive awe of your curiosity, I think you are going to get neither in-depth technical descriptions (these are technical trade secrets, to some extent) nor long, involved "NetApp for Dummies" type of explanations here. If your interest is genuine, then you will need to do a bit more of your own searching and researching.

The architectures of the different series of NetApps throughout the years have simultaneously used both ECC and NVRAM for different purposes.

Memory

lwei — Thu, 02 Jun 2011 02:49:34 GMT

Roughly speaking (not necessarily ttechnically precise), there are 3 types of memory:

general purpose memory (for buffer or cache, etc.), those are ECC protected
NVRAM (for write operations), battery backed
If you use Flash Cache (read only), that's the 3rd type. And it is also ECC protected.

Hope that helps,

Wei