topic Re: Adding SSD in existing aggregate in FlexPod Discussions

Adding SSD in existing aggregate

PraveenReddyB — Wed, 04 Jun 2025 12:10:36 GMT

Hi,

We are using converged infrastructure in our data center. For one of my project, we need to add one SSD in the existing Netapp environment. I need some help to identify correct SSD for my environment. Can you please let know the checkpoints and the points that we should condier before procure SSD?

Re: Adding SSD in existing aggregate

GidonMarcus — Fri, 25 Oct 2019 14:49:37 GMT

if your aggr is hybrid, (SSD and HDD) - look for the articles for flash cache and confirm the limits for your configuration.

if the whole AGGR is just SSD you'll need to:

1. confirm the model number of the other SSD's (command in 7 mode sysconfig -a, in cdot - disk show -aggr <aggr nameL> -fields model)

2. confirm the aggr max size and disk count to your controller model against hwu.netapp.com

3. confirm the maximum and recommended amount of SSD in raid group (28) is not exceeded (command in 7 mode sysconfig -r and aggr show-status ). if it does - you might not be able to add just one disk to the aggr to add space.

https://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.dot-cm-psmg%2FGUID-EE30CDA9-095F-4DD1-9A29-BB9F0E55DB4F.html

once that all confirm - you can likely order the extra disk. Make sure you get it from a certified partner. Otherwise, you might risk the warranty/support of your array, and might get a refurbished or not proper compatible dire.

When you get the disk.

1. check if you need to increase the maxraidsize (in 7mode aggr options, in cdot - aggr show -aggr <aggr name> -fields maxraidsize)

2. insert the disk and confirm it's visible in disk show or sysconfig -r

3. assign it to the node where the aggr is on with disk assign command (7 mode and cdor)

4. add the disk to the aggr with aggr add-disks command.

5. run vol reallocation - to spread the workload across all the disks, and avoid having your disk deemed to be "cold"

Good luck

Re: Adding SSD in existing aggregate

GidonMarcus — Fri, 25 Oct 2019 14:51:07 GMT

actually. just noticed you didn't specify it's ontap as well. NetApp has 3 other platforms that has SSD.. if it's need further attention. please provide the model name. OS version, and current riad configuration.

Re: Adding SSD in existing aggregate

RajeshPanda — Mon, 11 Nov 2019 08:21:42 GMT

@PraveenReddyB can you please look into the response and update thread ?