Re: SAS controller for FreeBSD

2011-06-27 Thread Leon Meßner
On Sat, Jun 25, 2011 at 04:47:19PM -0400, Daniel Feenberg wrote: > > > On Sat, 25 Jun 2011, Leon Meßner wrote: > > > On Fri, Jun 24, 2011 at 06:51:37PM -0400, Daniel Feenberg wrote: > > ... > >> > >> There are some SAS RAID controllers that claim to support FreeBSD but I > >> can't tell if thei

Re: SAS controller for FreeBSD

2011-06-25 Thread Dave Pooser
On 6/25/11 3:47 PM, "Daniel Feenberg" wrote: >All the cards on the LSI website that I can find using the SAS2008 chipset >include the sentence "Integrated RAID avoids additional host CPU overhead" >in their brief description, even the ones labeled "HBA". There are two different firmware options.

Re: SAS controller for FreeBSD

2011-06-25 Thread Daniel Feenberg
On Sat, 25 Jun 2011, Leon Meßner wrote: On Fri, Jun 24, 2011 at 06:51:37PM -0400, Daniel Feenberg wrote: ... There are some SAS RAID controllers that claim to support FreeBSD but I can't tell if their JBOD mode is a true pass-through, or leaves some undesirable junk on the disk. So does a

Re: SAS controller for FreeBSD

2011-06-25 Thread Leon Meßner
On Fri, Jun 24, 2011 at 06:51:37PM -0400, Daniel Feenberg wrote: > > We have been using ZFS under FreeBSD for a while, and are very pleased, > but are considering building a system with SAS drives, in the hope that > they will be faster (any truth to that?). I am assuming that I should look > f

SAS controller for FreeBSD

2011-06-24 Thread Daniel Feenberg
We have been using ZFS under FreeBSD for a while, and are very pleased, but are considering building a system with SAS drives, in the hope that they will be faster (any truth to that?). I am assuming that I should look for a non-RAID controller, but I can't find any SAS controllers that don't