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Re: Solaris and 10GBe.
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Posted by:
Armen Filipetyan
Date:
01-27-2010,
17:05:PM
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Sean,
Solaris does have a bunch of tuning parameters. ndd is your friend, especially ndd -get /dev/nxge0 ( which is my 10GE device ). You can also reference this site for the individual values and parameters along with some recommendations.
Here are some of the usual ones I like to modify ( in no particular order ). I have also included my settings, which may or may not match yours but it might be good for reference. Let me know if you play around with some of these settings and see some improvements.
/dev/nxge0 adv_autoneg_cap = 1 adv_10gfdx_cap = 1 adv_1000fdx_cap = 1 adv_100fdx_cap = 1 adv_10fdx_cap = 1 adv_pause_cap = 0 accept_jumbo = 1 rxdma_intr_time = 8 rxdma_intr_pkts = 20 class_opt_ipv4_tcp = fe3
/dev/tcp tcp_recv_hiwat = 400000 tcp_max_buf = 4194304 ( one of the most important ones I think ) tcp_mss_max_ipv4 = 65495 tcp_mss_min = 108 tcp_cwnd_max = 2097152 tcp_rexmit_interval_initial = 3000 tcp_rexmit_interval_max = 60000 tcp_rexmit_interval_min = 400 tcp_conn_req_max_q = 8192 tcp_conn_req_max_q0 = 8192 tcp_conn_req_min = 1 tcp_debug = 0
On Jan 27, 2010, at 10:53 AM, Jim Bucks wrote: I've got one lonely Solaris 10, X4540 with a 10 GbE (dual port) NIC in it. It runs GREAT! Sadly, I've had to throttle the Sun's 10Gb card back to 2 Gb because the Windows clients that pull video content from the Sun are unable to accept (cheap 3Ware cards) at speeds above 2GbE (without causing video stuttering from their internal [Windows] drives at the final write. Jim Sean Cody wrote: Just curious if anyone here has done any interface/system tuning for Solaris 10 and 10GBe?
I have a few servers up (and a few more once some data is migrated) and I have this sneaking suspicion I need to turn some knobs to make full use of the link (since my guess it is tuned for single GBe).
There are a few documents on line in my reading queue but I was hoping for advice from someone with empirical experience and hammering 10GBe and CIFS on Solaris.
Sean Cody
Managing Director of Systems Administration, Film VFX, North America
T: +1 204 949 0070 | F +1 204 949 0050 | M: +1 204-295-2639
E: sean.cody@primefocusworld.com <mailto:sean.cody@primefocusworld.com>
www.primefocusworld.com <http://www.primefocusworld.com>
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