LSI SAS 3008 card - 35 out of 36 disks detected

[Graham Allan]

On 2/26/2016 9:26 AM, kpneal at pobox.com wrote:
> On Fri, Feb 26, 2016 at 05:44:07AM -0700, crigariba wrote:
>> We have a Supermicro chassis with a LSI 3008 HBA card. Installed FreeNas
>> 9.3-RELEASE, but realized there were only 35 disks visible to the OS. The
>> missing disk is in bay 24 (starting at 0 - 1st disk on rear backplane).
>>
>> Both in the card bios and booting a live gnu/linux shows all 36 disks and
>> said disk is functional.
>
> Best practice for ZFS is to have different system and data pools. Your
> system pool will have a small number of disks compared to your data pools,
> and that tends to avoid issues like this one. There are other benefits
> as well.

Maybe in this case FreeNAS is just on flash, that seems the normal way 
to install it.

You said sas2ircu saw no adapters, but I think you probably need to use 
sas3ircu for this model of HBA.

Another quick test I suppose might be to boot with current NAS4Free - 
whether you want to use that or not, it's based on FreeBSD 10.2 so you 
might see some different behaviour. Though a FreeBSD 10.2 livecd/liveusb 
would achieve the same thing.

Graham
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