Re: FreeBSD on Dell r210 (SAS 6/ir)

[Peggy Wilkins]

On Thu, Feb 3, 2011 at 8:35 AM, Sergio de Almeida Lenzi
lenzi.ser...@gmail.com wrote:

 I have a dell with 2 dual xeon 6 cores, dual thread cpus (24 logical
 cpus)
 with that famous perc6 controller, running FreeBSD 8.2 and with
 journaling FS (one partition) and 2 SAS drivers of 160GB.

 The controller blocks almost all the time.. message is timeout.

 I used the mfi config utility (in the ports) and enable write cache.
 it now works ok (no more timeouts) but sometimes (once a week)
 it panics the system.  A fix in the gjournal appears today (cvsup)
 and I hope it can fix the problem...

I have seen many reports of the mfi timeout problem, and I was seeing
this on one of my Dell servers as well.  All the problem reports I've
seen have involved the mfi driver, but sometimes it is PERC5 or PERC6,
other times it has been H700 or H800.  It appears we have the same
CPU?  Intel Xeon X5680 (Intel Westmere).  I fixed the timeout problem
on my server by updating some settings in the BIOS.  Here are the
details.

The following should all be set to disabled (they are enabled by default):

Processor Options:
 - Turbo Mode
 - C1E
 - C-States

Turbo mode allows overclocking of the CPU when certain conditions
occur.  C-States and C1E have to do with ACPI; see the section on
Processor States at http://en.wikipedia.org/wiki/Acpi for more info.

You may also want to make sure your BIOS is set for Maximum
Performance.  Sorry, I don't recall off hand which config section
this is found under.

plw
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FreeBSD on Dell r210 (SAS 6/ir)

[mailtrap]

Hi list.

We are looking for a small, cheap, decent performing 19 server to run 
FreeBSD or possibly FreeNAS, and found the Dell R210 which suits our 
needs perfectly.
However, a lot of people seem to have problems with the SAS 6/ir 
controller under FreeBSD. According to what I've found on Google, it 
works, but the performance is horrible. This is a complete showstopper 
in this case, since the plan was to use the servers as offsite storagenodes.


Does anyone have firsthand experience with the SAS 6/ir, or the PERC 
S100 in the somewhat more expensive Xeon version of the R210?
Or does anyone know of another server with similar size, that is 19 
wide and only ~40 cm deep?

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Re: FreeBSD on Dell r210 (SAS 6/ir)

[Sergio de Almeida Lenzi]

Hello,

I have a dell with 2 dual xeon 6 cores, dual thread cpus (24 logical
cpus)
with that famous perc6 controller, running FreeBSD 8.2 and with
journaling FS (one partition) and 2 SAS drivers of 160GB.



The controller blocks almost all the time.. message is timeout.

I used the mfi config utility (in the ports) and enable write cache.
it now works ok (no more timeouts) but sometimes (once a week)
it panics the system.  A fix in the gjournal appears today (cvsup)
and I hope it can fix the problem...


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