topic FAS2220 HA Version an 12 Disks. How Many Data Disks? in ONTAP Hardware

FAS2220 HA Version an 12 Disks. How Many Data Disks?

001115774 — Thu, 05 Jun 2025 06:00:30 GMT

Hello,

we plan to buy a FAS2220 in HA Version, but we dont know how many Disk in the System are Data Disks.

We plan to buy the Bundle with 12 x 900 GB Disks an set it up as a Active/passive configuration. The Documentation sais: In this configuration, the passive node has only a root volume.

How many Disk does he need for "only a root volume".?

And how many Data Disk are then available for the active node?

Regards.

Re: FAS2220 HA Version an 12 Disks. How Many Data Disks?

paul_wolf — Wed, 19 Jun 2013 12:33:29 GMT

We use this hardware for our remote offices and this is the configuration that we use to maximize space.

Node 1 - One aggregate of 9 disks (RAID-DP) with one spare. This will give you approximately 5TB of usable space on the aggregate (7 data disks, 2 parity disks). If space it really a concern you _could_ go RAID-4 here but I wouldn't recommend it for production data.

Node 2 - One aggregate of 2 disks (RAID-4) with no spares. You will get alerts about there being no spares available but you can stop those by setting 'options raid.min.spare_count' to '0'

Re: FAS2220 HA Version an 12 Disks. How Many Data Disks?

001115774 — Wed, 19 Jun 2013 14:14:44 GMT

Thank you.... That helps a lot!