Disk replace with different capacity

[LORENZO_CONTI]

Hello,

maybe this is a trivial question, but I need some advice from experts 😉

I have to replace 2TB ATA disk with 2TB SATA (BSAS on DS4246) disk, on a FAS system in HA (8.3.2 cluster mode), the aggregate is a flash pool.
I would like to not relocate controller, I want to do it non disruptively, and I have 3 spare DS4246 with 3TB drives.
I will leave doing vol move as last option.

Here's what I want to do:

- disk replace 2TB ATA on 3TB BSAS 
- disconnect 2TB ATA, connect 2TB BSAS
- disk replace 3TB BSAS on 2TB BSAS

Is it possibile to do this? 

Thank you very much

[AlexDawson · Accepted solution]

Hi,

This is supported. This article outlines pretty much the exact scenario you're asking about - https://kb.netapp.com/support/s/article/ka31A0000008gtZQAQ/how-to-add-larger-capacity-disks-to-a-raid-group-that-contains-smaller-capacity-disks?langu...

Good luck!

[LORENZO_CONTI]

Hi Alex,

I found 2 conflicting bug because I'm not sure about how parity disk will be handled.

https://mysupport.netapp.com/NOW/cgi-bin/bol?Type=Detail&Display=108147

https://mysupport.netapp.com/NOW/cgi-bin/bol?Type=Detail&Display=155069

Maybe the higher id will be right... 

I'm stil considering vol move as a good option 😉

[AlexDawson]

Both of those BURTS have been resolved and the functionality should work as designed