topic The spec information for FAS2040 in ONTAP Hardware

The spec information for FAS2040

renqingrong — Thu, 05 Jun 2025 07:18:09 GMT

I has some questions for FAS 2040

FAS2040 (active/active) Tech Spec announce that its Max. Number of Expansion Disk Drives =124

Q1: how many DS14 disk shelves it can has? if number is eight, only 8*14=112 FC disks.

if number is nine, only 9*14=126 . no one is equal to 124 disks

Q2: I can not use NDMP backup for NAS data if FAS2040 is configured with more than 84 FC disks, for example 100 FC disks. right?

Re: The spec information for FAS2040

ewerner — Fri, 26 Feb 2010 14:41:34 GMT

Thanks for posting!

I can answer your first question: the 136 total spindle count can only be reached through a combination of the internal drives, DS4342 shelves, and DS14 shelves.

The math goes like this:

Internal = 12

4x DS4243 = 96

2x DS14 = 28

12 + 96 + 28 = 136

Or, just for the shelves:

4x DS4243 = 96

2x DS14 = 28

96 + 28 = 124

Does that help?

Ethan Werner

Technical Systems Engineer

NetApp

www.netapp.com

Re: The spec information for FAS2040

stratify_tc — Fri, 26 Feb 2010 17:20:47 GMT

Please note that in Ethan's reply, while unstated, the max number of DS4243 shelves is 4 or 96 total drives.

Re: The spec information for FAS2040

renqingrong — Sat, 27 Feb 2010 02:04:07 GMT

FAS2040 Max. Number of Expansion Disk Drives is depend on the disk type

for only FC disks, It should be 8*14=112 ( 8 DS14 disk shelves )

for only SAS disks, It should be 4*24=96 ( 4 DS4243 disk shelves )

For mixed FC and SAS disks, It should be 124 disks (4 DS4243+2DS14)

does it right?

Re: The spec information for FAS2040

amiller_1 — Mon, 26 Apr 2010 00:51:45 GMT

Do you know if there's any possibility of the 2040 shelf support being adjusted to handle (5) DS4243 shelves? That would be almost perfect as would be 120 external disks + the 12 internal disks = 132 disks (only 4 away from the 136 maximum).

Re: The spec information for FAS2040

RAFAEL_GUEDES — Tue, 13 Dec 2011 11:48:58 GMT

Hey Ethan! Thanks for this very useful information!!

The maximum number of DS4243 shelves in a SAS bus is four for any FAS system, or it is only a restriction for FAS2040?

And in the case of DS2246, which has a maximum of ten shelves in a SAS bus, does this number also apply to FAS2040 ?

Thanks in advance!

Re: The spec information for FAS2040

pascalduk — Tue, 13 Dec 2011 13:39:55 GMT

The maximum of 4x DS4243 or 4x DS2246 shelves per stack is only a limitation for the FAS2040.

Higher end systems can do 10 shelves per stack.

Re: The spec information for FAS2040

RAFAEL_GUEDES — Tue, 13 Dec 2011 13:49:01 GMT

HI Pascal! Thanks for fast reply!!

Do you know any official docs from NetApp that confirm it? I need it to officialize a deal where we are beating against EMC.

Re: The spec information for FAS2040

aborzenkov — Tue, 13 Dec 2011 16:19:04 GMT

Standard system configuration guides have all information you need.

https://now.netapp.com/NOW/knowledge/docs/hardware/NetApp/syscfg/

Re: The spec information for FAS2040

RAFAEL_GUEDES — Tue, 13 Dec 2011 17:13:52 GMT

Very useful!!! Tks a lot!