You can also try enabling Jumbo frames. You can get more utilization out of your NFS access. I am sure you will get a gain in I/O, maybe some CPU cycles back.; how much will become a religious discussion hopefully we don't hash out here... Beware of jumbo frame requirements..
Regards
Steve Klise
Storage Engineer, NCDA
__________________________
PALO ALTO MEDICAL FOUNDATION
SUTTER HEALTH INFORMATION SERVICES
PENINSULA COASTAL REGION
Office: 408-523-3163 · Fax: 408-328-1406
e-mail: klises@sutterhealth.orgmailto:abouelj@sutterhealth.org
WARNING: "All e-mail sent to or from this address will be received or otherwise recorded by the Palo Alto Medical Foundation e-mail system and is subject to archival, monitoring or review by, and/or disclosure to, someone other than the recipient."
________________________________ From: toasters-bounces@teaparty.net [toasters-bounces@teaparty.net] On Behalf Of Jordan Slingerland [Jordan.Slingerland@independenthealth.com] Sent: Wednesday, September 25, 2013 6:35 PM To: Jeff Mohler; Andreev, Nikita Cc: toasters@teaparty.net Subject: RE: FAS2050 high CPU usage
Dudup / sis running?
From: toasters-bounces@teaparty.net [mailto:toasters-bounces@teaparty.net] On Behalf Of Jeff Mohler Sent: Wednesday, September 25, 2013 9:33 PM To: Andreev, Nikita Cc: toasters@teaparty.net Subject: Re: FAS2050 high CPU usage
Ever check vm alignment?
Sent from my iPhone
On Sep 25, 2013, at 8:42 PM, "Andreev, Nikita" <Nikita.Andreev@visionstream.com.aumailto:Nikita.Andreev@visionstream.com.au> wrote: Hi All,
We’re using FAS2050 in one of our branch offices to run VMware cluster over NFS. It turns out that this box runs on 100% CPU usage even when servicing 40MBs/1000IOPS (the max I’ve seen was 70MB/s). Which results in ridiculous latencies.
I do realise that it’s a Celeron CPU. I just want to double check with you guys, that it’s something you’d expect from this box. Because these days 40MB/s seems to be too little even as a CIFS file server for a small team in a branch office.
Regards, Nikita
________________________________
This email is intended for the named recipient only. The information contained in this message may be confidential, or commercially sensitive. If you are not the intended recipient you must not reproduce or distribute any part of the email, disclose its contents to any other party, or take any action in reliance on it. If you have received this email in error, please contact the sender immediately and please delete this message completely from any systems. Confidentiality and legal privilege are not waived or lost by reason of mistaken delivery to you.
______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com ______________________________________________________________________ _______________________________________________ Toasters mailing list Toasters@teaparty.netmailto:Toasters@teaparty.net http://www.teaparty.net/mailman/listinfo/toasters