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Chris Duffy
July 17, 2014 at 7:17 pm in reply to: Promise SanLink2

🙂
Easier and faster if I can just screen-share with you on your mac to
help……. let me know…. we use teamviewer for screen-sharing but
you may have another program you use?
Chris Duffy
July 17, 2014 at 3:02 pm in reply to: Promise SanLink2

Try building/changing the file called
/etc/sysctl.conf
Put the following lines it in and reboot….
then re-test:

net.inet.tcp.doautorcvbuf=0
net.inet.tcp.doautosndbuf=0
kern.ipc.maxsockbuf=8388608
net.inet.tcp.sendspace=4194304
net.inet.tcp.recvspace=4194304
net.inet.tcp.maxseg_unacked=32
net.inet.tcp.delayed_ack=2
net.inet.tcp.win_scale_factor=7

Use an editor like “vi” or textedit to build it….
you have to be admin/root to do it.
Chris Duffy
July 17, 2014 at 2:00 pm in reply to: Promise SanLink2

When you select “autoselect” the speed greys out which means
it will auto-negotiate speed/duplex/flow-control for you
at the same time you select the MTU. So you will use
flow-control, 10Gbe and full-duplex doing this….
Chris Duffy
July 17, 2014 at 1:44 pm in reply to: Promise SanLink2

In the System Preferences-> Network Preferences
click on the SanLink port,
click on Advanced
click on Hardware
change Configure to Manual
change Speed to Autoselect
now you can change the mtu to 9000 or whatever
apply and so on.
Chris Duffy
June 21, 2014 at 8:10 pm in reply to: Promise SanLink2

Bob, you need to get out of Florida and get up here to
visit us at Small Tree if you want to see more WOW stuff
you can use 🙂 Besides it will be getting too hot down
there soon….I’ll take you fishing up here and make some great
margaritas for you.
Chris Duffy
December 17, 2013 at 3:45 pm in reply to: Anyone have experience with GraniteSTOR Z5?

Bob, you want a list from us?
Let me know.

Duffy
Chris Duffy
December 15, 2013 at 6:24 pm in reply to: Storage options for a SAS-enclosure owner in a Thunderbolt world

Hey Bob,

Just a few comments:

1-The R380 as you know has been obsolete quite a while now,
can hardly get replacements and so on…….not sure if I
would depend on using the R380 anymore….ATTO I am sure
could care less of issues with it.
2-We have tested and have seen ~20% performance improvement even using 3Gb
drives/chassis/expanders if you switch to using a R680 which
is still supported by ATTO. We have replaced R380’s
for R680’s over the last 2 years for some of our customers
so they have better performance and have a product that
is supported fully by ATTO.
3-Besides an X8/X16 slot for the ATTO card, make sure
that the I/O size is 4MBytes instead of the default
of 32KBytes that ATTO defaults to. Easy to do when using
the 3.38 Config tool or with a NVRAM command.

Duffy
Chris Duffy
December 10, 2013 at 1:52 pm in reply to: Thunderbolt 1 shared storage tests

Bob,

You interested in allowing me Teamviewer access to your setup so
I can look at it? A 2nd set of eyes may help 🙂
Let me know.

Just Duffy
Chris Duffy
November 3, 2013 at 8:05 pm in reply to: mavericks issues

🙂 Bob, in my tests I detailed I was also using a Mac OS (Mavericks) server….
I did mention this fact but we are both hard of reading, right? lol
Better switch over to using Small Tree 10Gbe cards 🙂

Duffy
Chris Duffy
November 1, 2013 at 2:01 am in reply to: mavericks issues

Thx Bob.

I was using an 8 drive raid…pretty small.
I imagine you were using a 12 or 16 drive ATTO raid, huh?

I re-ran the read/write tests using AJA like you did.
Using Small Tree 10Gbe cards I was seeing:

AFP write 820MBytes/sec write and 1.07Gbyte reads,
Samba2 showed writes 613MBytes/sec and 830MBytes/sec read.

Looks like you need to tune those ATTO 10Gbe cards a little more
Bob 🙂 they are a lot slower then our 10Gbe cards….
but you already knew this 🙂

Later,
chris

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