RAID overhead capacity in netapp filer

[MOHAN1985]

Hi,

What is the RAID overhead capacity for the raid groups supported in a netapp filer?

Thanks,

Mohan

[RAMACHANDRA_CBRANDS]

Data Ontap supports two type of RG raid4 and raidDP.

raid4 has single dedicated parity disk (min 2 disk)

raidDP has dual dedicated parity disk (min 3 disk)

Believe now you can calculate overhead capacity.

[MOHAN1985]

Thanks for your reply.

Wanted to know, if there is a formula that be used to calculate this overhead capacity?.