Bug 1402026 - During OverCloud Deploy initial PXE deploy boot is extremely slow when using UCS VIC [NEEDINFO]
Summary: During OverCloud Deploy initial PXE deploy boot is extremely slow when using ...
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: ipxe
Version: 9.0 (Mitaka)
Hardware: x86_64
OS: Linux
unspecified
medium
Target Milestone: ---
: ---
Assignee: RHOS Maint
QA Contact: Shai Revivo
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-12-06 15:23 UTC by John Browning
Modified: 2020-02-14 18:15 UTC (History)
8 users (show)

Fixed In Version:
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Environment:
Last Closed: 2017-09-19 20:31:49 UTC
Target Upstream Version:
bfournie: needinfo? (jobrowni)

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Description John Browning 2016-12-06 15:23:24 UTC 
Description of problem:
We are deploying RHOSP9 on UCS B200M4 Blades using UCS VNIC (VIC/VNIC Virtual Interface Card) and during pxe boot, the nodes take a very long time to pull down the ramdisk image.  This has happened at 2 customers now in similar environments.

Version-Release number of selected component (if applicable):
RHOSP9

How reproducible:

Always

Steps to Reproduce:
1. Deploy overcloud on UCS B200 M4 machines
2.
3.

Actual results:
Very slow pxe boot

Expected results:
Fast pxe boot like other hardware

Additional info:
On customers using UCS gear, without using a VNIC/VIC, the machines pxe boot at normal speed.  When using VNIC/VIC on same gear, pxe boot is horribly slow.
Comment 2 John Browning 2016-12-06 15:36:39 UTC 
It may be related to this cisco defect: http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCtu17983

Referenced in this forum: https://supportforums.cisco.com/discussion/11521776/poor-autodeploy-performance-ucs-b-series
Comment 3 Bob Fournier 2017-08-26 00:50:17 UTC 
John - any update on this?  Thanks.
Comment 4 Bob Fournier 2017-09-19 20:31:49 UTC 
As noted in Comment 2, there is a known issue in Cisco PXE implementation which causes poor deploy performance.  Closing this out as it does appear to be an issue with Ironic PXE implementation.
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