Cisco UCS 2208XP Manual

Fnic tunables feature
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Cisco UCS fNIC Tunables
Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Test Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Cisco UCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
fNIC Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
fNIC Tunable Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Operating System Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Install fNIC Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Configuring fNIC Tunables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
LUN Queue Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Displaying fnic_max_qdepth Parameter Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Boot-Time Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Load-Time Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Run-Time Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
IO Throttle Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
UCSM Non-Standalone I/O Throttle Count Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1 © 2014 Cisco and/or its affiliates . All rights reserved .
Guide
January 2014

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  Summary of Contents for Cisco UCS 2208XP

  • Page 1: Table Of Contents

    Cisco Integrated Management Controller Standalone I/O Throttle Count Configuration . . . . . . . . . . . . . . . .
  • Page 2: Overview

    (fNIC) driver in Linux and VMware ESX implementations . This guide provides an overview of these two parameters and the methodologies and syntax for modifying their values . Prior to Cisco UCS 2 .1 .2a, both of these parameters were statically set to industry best practice defaults, and these values are still recommended for the vast majority of architectures .
  • Page 3: Install Fnic Drivers

    Install fNIC Drivers This guide assumes that the UCS 2 .1 .2a or later fNIC drivers have been installed and are running . Please see the Cisco UCS Manager Install and Upgrade Guides, Virtual Interface Card Drivers section, for complete driver installation instructions: http://www .cisco .com/c/en/us/support/servers-unified-computing/ucs-manager/products-installation-guides-list .html...
  • Page 4: Displaying Fnic_Max_Qdepth Parameter Value

    # esxcli system module parameters list –m fnic Results: Name Type Value Description --------------- ---- ----- ---------------------------------- fnic_max_qdepth uint 128 Queue depth to report for each LUN 4 © 2014 Cisco and/or its affiliates . All rights reserved .
  • Page 5: Boot-Time Configuration

    # insmod fnic .ko fnic_max_qdepth=128 Run-Time Configuration RHEL / SLES11 / XS 1 . Configure fnic_max_qdepth with sysfs entry with the following command at the CLI: # echo 128 > /sys/module/fnic/parameters/fnic_max_qdepth 5 © 2014 Cisco and/or its affiliates . All rights reserved .
  • Page 6: Io Throttle Count

    Parameter values: Note: Prior to the UCSM 2 .1 .2a release, Cisco UCSM displayed an I/O Throttle Count parameter in the non-standalone Linux and ESX Adapter Policies, and in the standalone Cisco Integrated Management Controller vHBA Properties field . This parameter was programmatically ignored;...
  • Page 7: Ucsm Non-Standalone I/O Throttle Count Configuration

    Adapter Policies in the navigation tree . Click the FC Adapter Policy Linux or FC Adapter Policy VMWare, and then, in the main window, expand the Options drop-down . Configure the I/O Throttle Count field per the list of parameter values above, and then click the Save Changes button . 7 © 2014 Cisco and/or its affiliates . All rights reserved .
  • Page 8: Cisco Integrated Management Controller Standalone I/O Throttle Count Configuration

    San Jose, CA Singapore The Netherlands URL: www.cisco.com/go/trademarks. Third party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1110R) C07-730811-00 1/14...

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