[OmniOS-discuss] areca or lsi

[Richard Elling]

On Jul 18, 2013, at 8:23 PM, "Schweiss, Chip" <chip at innovates.com> wrote:

> I have used LSI HBAs exclusively.  Performance and reliability has been very good.
> 
> The only problem I have consistently seen is if I hotplug a sas expander with or without disks attached it will crash the system at least half the time.  I have simple resolved never doing that hot.  

This was a known bug in the mptsas driver more than a year ago. The root cause was
related to the driver trying to manage LEDs. IIRC, a fix was integrated upstream as part
of a set of changes in May 2012. If your experience is with a later release, then please
file a bug at illumos.org.
 -- richard

> 
> I have stuck with LSI because of using LSI SAS expanders to keep the communication across venders to the minimum.  The last thing I want is to be in the middle of finger pointing between venders.
> 
> -Chip
> 
> 
> On Thu, Jul 18, 2013 at 7:03 PM, Saso Kiselkov <skiselkov.ml at gmail.com> wrote:
> On 18/07/2013 23:48, Tobias Oetiker wrote:
> > Folks,
> >
> > We are specing a new omnios server box ... and were just told by
> > our vendor, that LSI HBAs were much slower (50%) than Areca Controllers
> > running in JBOD mode ... and that they would therefore recommend
> > Areca (we use areca for raid6 in linux boxes, but have never used it in JBOD
> > mode with illumos, yet).
> >
> > Which controller would you choose for a new system ?
> 
> Hi Tobi,
> 
> I'm using LSI exclusively, never had an issue with them. Their 6G SAS
> HBAs are very affordable and remarkably solid. As for the ARECA vs LSI
> debate, I'd contest that there's going to be any appreciable performance
> difference. *IF* you're running in JBOD, the card should essentially be
> a simple pipe for SCSI commands to the SAS bus with as little overhead
> possible. I know for a fact that saturating a 6G SAS link isn't a
> problem with LSI cards, so I'm somewhat at a loss as to where the
> performance difference is supposed to lie.
> 
> Cheers,
> --
> Saso
> _______________________________________________
> OmniOS-discuss mailing list
> OmniOS-discuss at lists.omniti.com
> http://lists.omniti.com/mailman/listinfo/omnios-discuss
> 
> _______________________________________________
> OmniOS-discuss mailing list
> OmniOS-discuss at lists.omniti.com
> http://lists.omniti.com/mailman/listinfo/omnios-discuss

--

Richard.Elling at RichardElling.com
+1-760-896-4422



-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://omniosce.org/ml-archive/attachments/20130719/eb118b23/attachment.html>