SAS RAID controllers support

[Michael Neumann]

2010/2/23 Francois Tigeot <ftigeot at wolfpond.org>
On Thu, Feb 04, 2010 at 06:20:51PM +0100, Francois Tigeot wrote:
> > > > >
> > > > > I'm curious about the state of hardware RAID controllers in DragonFly.
>
> I'm now pretty sure the only hardware RAID adapters which *could* be usable
> are based on the LSI 1078 chipset
>
> At least 6 different cards are based on it:
>
> - LSI MegaRAID SAS 8704ELP / 8708ELP
> - LSI MegaRAID SAS 8704EM2 / 8708EM2
> - LSI MegaRAID SAS 8880EM2
> - LSI MegaRAID SAS 8888ELP
>
> I should be able to test a MegaRAID SAS 8888ELP soon. It was not recognized last
> year but Matt has since updated the mpt(4) driver.

The MegaRAID SAS 8888ELP is still not recognized.

dmesg :

pci3: <PCI bus> on pcib3
pci3: <mass storage, RAID> (vendor 0x1000, dev 0x0060) at device 0.0 irq 11

pciconf -lv :

none17 at pci0:3:0:0:      class=0x010400 card=0x10061000 chip=0x00601000 rev=0x04 hdr=0x00
    vendor     = 'LSI Logic (Was: Symbios Logic, NCR)'
    device     = 'SAS1078 PCI-X Fusion-MPT SAS'
    class      = mass storage
    subclass   = RAID

So it seems DragonFly doesn't support any recent hardware RAID controller.The Adaptec RAID (aac) controllers seems to be supported very well. For examplethe Adaptec RAID 5405 seems to work pretty well on a box I tested Dragonfly.
Regards,  Michael