Scheduler / need advise

Hello community,

I need an general advise howto tune the scheduler in proxmox for:

- Fibrechannel-SAN
- Local RAID-Controller SAS
- DRBD via 10GBE Intel

I thought I read somewhere to leave the default cfq-scheduler in production. But is that true for fast RAID-Controllers or DRBD.

Thanks for your help.

cheers macday