nanog mailing list archives

Re: Broken Mini-SAS cable removal?


From: Warren Kumari <warren () kumari net>
Date: Fri, 23 Apr 2021 13:47:09 -0400

A related question -- every now and then I run into SFPs where the bail /
level has decided to come off, and now I've got a jammed SFP+ inna slot.
I've often managed to wiggle the bail back in and use it to release the
SFP, or used the tip of a small screwdriver to push down the release, but
this doesn't always work... I've ended up with a few line cards/devices
with some ports unusable because of this....

The best tool I ever found for this is a Peterson 0.015 stainless steel
hook pick (https://www.thinkpeterson.com/hook-5-stainless-0-015-slender/),
or slender reach pick, but, well TSA/customs people get all twitchy when
traveling with lockpicks (which is a separate issue, but let's not get into
the politics here)
Does anyone know of a purpose built tool for this? Something that won't get
me on the additional screenings lists?



On Fri, Apr 23, 2021 at 1:36 PM Randy Carpenter <rcarpen () network1 net>
wrote:


The DACs with the metal release are definitely considerably more robust.
They are, however, sometimes more difficult to unlatch to remove,
particularly in scenarios with tightly-spaced ports.

thanks,
-Randy


----- On Apr 23, 2021, at 12:45 PM, George Metz george.metz () gmail com
wrote:

One of the best DACs I've ever had - and I wish I could find them or
the manufacturer again - was one with a relatively thick metal T push
bar that you had to push in towards the switch to release the latch.
Almost impossible to break, and nearly as impossible to accidentally
get unplugged.

On Fri, Apr 23, 2021 at 12:20 PM Alain Hebert <ahebert () pubnix net>
wrote:

    Hi,

    That happened to me more often with the DAC cables I had the
displeasure to deal
    with.

    And yeah got old valve gap feeler gauge to the rescue =D

-----
Alain Hebert                                ahebert () pubnix net
PubNIX Inc.
50 boul. St-Charles
P.O. Box 26770     Beaconsfield, Quebec     H9W 6G7
Tel: 514-990-5911  http://www.pubnix.net    Fax: 514-990-9443

On 4/23/21 11:51 AM, Ryland Kremeier wrote:

Hit the wrong reply button before, but we were able to get it removed by
unscrewing the top latch and removing that first at an angle. Then the
connector was able to be pulled straight out. Plastic was very thin on
the pull
tab and it snapped without much resistance.



Thank you,

-- Ryland



From: Eric Litvin
Sent: Friday, April 23, 2021 10:49 AM
To: Joe Klein
Cc: nanog () nanog org
Subject: Re: Broken Mini-SAS cable removal?



Joe’s response is spot on. I would also suggest you look at the
“latching
finger” mechanism on a spare,  then apply some of the techniques Joe
suggests.

Eric
Luma optics




Sent from my iPhone

On Apr 23, 2021, at 8:27 AM, Joe Klein <joe.klein () mischoice com>
wrote:

Try shim stock or a feeler gauge between the plug and socket to work
the
latching fingers. This isn't something that I've tried specifically
in this
case.

You might need to put a notch in the stock or feeler gauge so that
you can work
the fingers from the backside. Kinda like that old trick of using a
credit card
to prise a door latch, except this should work since there's no
deadlatch. :)

You might also try gently twisting a small screwdriver or spudger
stick between
the plug and socket too to increase the gap between the socket and
plug.

-joe

From: NANOG <nanog-bounces+joe.klein=mischoice.com () nanog org> On
Behalf Of
Ryland Kremeier
Sent: Friday, April 23, 2021 09:31
To: nanog () nanog org
Subject: Broken Mini-SAS cable removal?


 External Mail

Anyone here have experience removing a mini-SAS cable when the
plastic tab has
broken off? Tried checking online but couldn't find anything.

Thank you,
-- Ryland







-- 
The computing scientist’s main challenge is not to get confused by the
complexities of his own making.
  -- E. W. Dijkstra

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