Recommended HBA for ZFS, contemporary

[Ben RUBSON]

> On 22 Aug 2016, at 21:01, Linda Kateley <lkateley at kateley.com> wrote:
> 
> 
> 
> On 8/22/16 12:55 PM, Ben RUBSON wrote:
>>> On 22 Aug 2016, at 19:13, Linda Kateley <lkateley at kateley.com> wrote:
>>> 
>>> Not just IT firmware, but you need to make sure the driver and firmware match.
>>> 
>>> I try to use 16 if possible, 20 works but I have only found the 20.00.04.00 version of firmware to be reliable. Would love to hear if people have different experience. I am about to try the rocket raid in IT mode because I am tired of fighting with lsi firmware. Very very stable when you get the right combo, 1000's of phantom checksum errors if not.
>> FreeBSD 10.3 :
>> # egrep ^mps0 /var/run/dmesg.boot
>> mps0: <Avago Technologies (LSI) SAS2008>
>> mps0: Firmware: 20.00.04.00, Driver: 20.00.00.00-fbsd
>> 
>> FreeBSD 11-RC1 :
>> # egrep ^mps0 /var/run/dmesg.boot
>> mps0: <Avago Technologies (LSI) SAS2008>
>> mps0: Firmware: 20.00.04.00, Driver: 21.01.00.00-fbsd
>> 
>> Strangely enough there is no P21 driver/firmware @Avago :
>> http://www.avagotech.com/products/server-storage/host-bus-adapters/sas-9211-8i#downloads
>> So I assume firmware P20 is the right one to use with FreeBSD 11.
>> Well it is : https://forums.freenas.org/index.php?threads/firmware-version-p21.45130/#post-304399
> I have worked with those guys, and they consistently say there is no difference in the firmware revs, but... I have seen major differences.. The 21 sounds like an oem release.

The .21 version is from FreeBSD.
I just had a look, driver moved from .20 to .21 with this :
https://svnweb.freebsd.org/base?view=revision&revision=302031
This bugfix has also been committed to stable/10 :
https://github.com/freebsd/freebsd/commit/4542c2afc3d1697def1e77a37b7d0a773ee40964