Optimal configuration for a RAID + ZFS

Question

What would be the optimal configuration for a server using raid and where I want to place ZFS only?

I heard that while using ZFS would be better not to use at all the raid controller , is it correct?

score 3 · Accepted Answer · answered Dec 25 '21 at 13:16

3

ZFS needs to have full access to individual disk devices in order to work optimally.

If one uses a RAID controller, ZFS cannot access individual disks and much of ZFS benefits are not achieved.

The optimal setup is to pass-through the individual disks via the RAID controller.

answered Dec 25 '21 at 13:16

Tero Kilkanen

thanks, that's what i was searching for. but not sure how to configure the machine without the drive controller – Woden Dec 25 '21 at 13:58
maybe implementing hba? – Woden Dec 25 '21 at 15:19
some old server require that you need to create each disk as a single device, some work like without configuration and some others needs a look at the manual ;) – djdomi Dec 25 '21 at 15:32
1

@djdomi eheh you're right – Woden Dec 26 '21 at 07:42

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