topic Re: AFF Storage cut feels ridiculous in AFF

AFF Storage cut feels ridiculous

Zadok — Mon, 30 Sep 2024 14:35:09 GMT

Hi
I just got a new AFF C-Series

About to replicate from a FAS2750

I have 12 x 15.3TB disks.

However, the aggregate I was able to create from this amounted to less than 70TB.

I need this to make sense. Effective storage should get to some 100TB though, right?

Re: AFF Storage cut feels ridiculous

SpindleNinja — Mon, 30 Sep 2024 15:06:05 GMT

I just put the config in our fusion tool to verify, but I see 118TiB useable (59TiB per node) with 12x15.3 -

How did you configure your aggrs?

Re: AFF Storage cut feels ridiculous

NetApp_RZ — Tue, 01 Oct 2024 19:02:46 GMT

I am not sure if you are comparing this to E-Series or not which I've worked on for over 20 years that would allow you to access around 150TB of disk space (RAW) into a single Disk pool to carve up into luns as you see fit.

With a two-node FAS AFF, the 12 disks you have are being partitioned automatically into three separate partitions (root-data-data) via Advanced Disk Partitioning as seen below:

Thus limiting the aggregate size per node to around 67.5TB assuming RAID DP plus one spare.

I am new to FAS myself but in the training they mentioned that the FAS nodes could be configured for Active / Passive, thus changing the ADP partitioning to root-data, allowing for a full-size single data partition to achieve a larger aggregate.

Re: AFF Storage cut feels ridiculous

NetApp_RZ — Tue, 01 Oct 2024 18:13:14 GMT

Active-passive example I seen in training allowing root-data partitioning:

Notes:

This diagram shows how a chassis that contains 12 drives is partitioned in ONTAP 8.3

software.

If one node is installed, it owns all the containers.

If two controllers are installed, each node owns half the drives.

All 12 drives are partitioned.

Re: AFF Storage cut feels ridiculous

cedric_renauld — Wed, 02 Oct 2024 02:15:17 GMT

Hello,

In NetApp world, you create Aggregat, with the dsik, like you can see in below article, and after you can create Volumes on the aggregat.

And this volumes can be created with thin provisionning and exceed the aggregat physical limitation, to get your 100TiB and more by the efficiency mechanism, deduplication, compaction and compression