Re: [ofa-general] Re: [PATCH v2] infiniband-diags/scripts: Add 'ibcheckspeed' and 'ibcheckportspeed' to scripts

[Ira Weiny <weiny2@llnl.gov>]

On Fri, 11 Sep 2009 09:32:39 +0530
Keshetti Mahesh <keshetti.mahesh@gmail.com> wrote:

> My badness. I have not used 'iblinkinfo' before.
> So, I guess there is no need for the above script. Apart from that, I feel
> there should be a program/script which will first scan the fabric to find the
> maximum common supported width/speed and then report the warning messages
> of the links/ports which are configured with active width/speed less
> than the found
> value. Is there any tool already exists which does the same ?

Not that I know of.

While I could see the usefulness of such a tool in some environments I have gone down the path of making the OFED diags more generic and then writing some wrappers for our local needs.  Currently I have a script which runs iblinkinfo with the "-l" option and then returns total number of links at SDR, DDR, QDR as well as the number of links at 1, 4, or 12X.  I then leave it up to the sys admin to know if their cluster is homo or heterogenious and how many links should be at what speeds.  They can then use iblinkinfo to identify which links are incorrect for their particular installation.

Ira

> 
> -
> Keshetti Mahesh
> 
> On Thu, Sep 10, 2009 at 9:32 PM, Ira Weiny <weiny2@llnl.gov> wrote:
> > Also, iblinkinfo will report links which it finds capable of either faster or wider operation.  iblinkinfo checks both ends of the link as Hal mentions.  It reports this with output like.
> >
> > Switch 0x0005ad0000092106 Cisco Switch SFS7000D:
> > ...
> >           7    8[  ] ==( 4X 2.5 Gbps Active/  LinkUp)==>       8   12[  ] "MT47396 Infiniscale-III Mellanox Technologies" ( Could be 5.0 Gbps)
> > ...
> >
> > Also the portstatus console command in OpenSM will report links which are running at "reduced speed or width".  Although this does not check the remote port.
> >
> > OpenSM $ help portstatus
> > portstatus [ca|switch|router]
> > summarize port status
> >   [ca|switch|router] -- limit the results to the node type specified
> > OpenSM $ portstatus
> > "ALL" port status:
> >   115 port(s) scanned on 9 nodes in 26 us
> >   85 down
> >   30 active
> >   32 at 4X
> >   22 at 2.5 Gbps
> >   8 at 5.0 Gbps
> >   2 at 10.0 Gbps
> >
> > Possible issues:
> >   2 disabled
> >      0x0008f10400411b18 5 (ISR9024D Voltaire)
> >      0x0005ad0000092106 13 (Cisco Switch SFS7000D)
> >   6 with reduced speed
> >      0x0008f10500200220 33 (Voltaire 4036 - 36 QDR ports switch)
> >      0x0008f10500200220 19 (Voltaire 4036 - 36 QDR ports switch)
> >      0x0005ad0000092106 21 (Cisco Switch SFS7000D)
> >      0x0005ad0000092106 20 (Cisco Switch SFS7000D)
> >      0x0005ad0000092106 9 (Cisco Switch SFS7000D)
> >      0x0005ad0000092106 8 (Cisco Switch SFS7000D)
> >
> >
> > Ira
> >
> > On Thu, 10 Sep 2009 09:23:35 -0400
> > Hal Rosenstock <hal.rosenstock@gmail.com> wrote:
> >
> >> On Thu, Sep 10, 2009 at 9:02 AM, Keshetti Mahesh
> >> <keshetti.mahesh@gmail.com>wrote:
> >>
> >> > Added 'ibcheckspeed' and 'ibcheckportspeed': Similar to
> >> > 'ibcheckwidth/ibcheckportwidth' in functionality and implementation.
> >> > Reports error/warning messages if the LinkSpeedActive is configured as
> >> > 2.5 Gbps when the LinkSpeedSupported is more than 2.5 Gbps.
> >> >
> >>
> >> ibportstate checks for more than this in terms of speed (and width)
> >> anomalies.
> >>
> >> Would it be better for these scripts to use that tool now ? Alternatively,
> >> the additional speed/width anomaly checks could be implemented in these
> >> scripts but it does involve checking the peer port so there's a little more
> >> to it.
> >>
> >> -- Hal
> >>
> >>
> >> >
> >> > Signed-off-by: Keshetti Mahesh < keshetti.mahesh@gmail.com>
> >> > ---
> >> >  infiniband-diags/scripts/ibcheckportspeed.in |  146
> >> > ++++++++++++++++++++++++++
> >> >  infiniband-diags/scripts/ibcheckportwidth.in |    2 +-
> >> >  infiniband-diags/scripts/ibcheckspeed.in     |  135
> >> > ++++++++++++++++++++++++
> >> >  3 files changed, 282 insertions(+), 1 deletions(-)
> >> >  create mode 100644 infiniband-diags/scripts/ibcheckportspeed.in
> >> >  create mode 100644 infiniband-diags/scripts/ibcheckspeed.in
> >> >
> >> <snip...>
> >>
> >
> >
> > --
> > Ira Weiny
> > Math Programmer/Computer Scientist
> > Lawrence Livermore National Lab
> > 925-423-8008
> > weiny2@llnl.gov
> >


-- 
Ira Weiny
Math Programmer/Computer Scientist
Lawrence Livermore National Lab
925-423-8008
weiny2@llnl.gov