One slight correction: 100% of our switches with FRU PN 00WE097/PN 00WE096Y manufactured on 2016-11-28 (quantity 3) have failed, and one same FRU PN/PN manufactured on 2016-12-15 too. We have another switch with FRU PN 00WE093/PN 00WE092Y that was manufactured on 2016-11-28 that has so far been OK, but I’m now suspicious of it.
--
____
|| \\UTGERS, |---------------------------*O*---------------------------
||_// the State | Ryan Novosielski - novos...@rutgers.edu
|| \\ University | Sr. Technologist - 973/972.0922 (2x0922) ~*~ RBHS Campus
|| \\ of NJ | Office of Advanced Research Computing - MSB C630, Newark
`'
> On Jun 6, 2018, at 6:48 PM, Ryan Novosielski <novos...@rutgers.edu> wrote:
>
> Something to be aware of, potentially, if you happen to own any of this
> equipment:
>
> 100% of our Mellanox SwitchIB2 SB7890 EDR externally-managed switches that
> were manufactured on 2016-11-28 have failed. I’ve been told there was a
> manufacturing defect related to capacitors in the voltage regulators.
>
> Mellanox apparently didn’t see fit to really notify us, even after diagnosing
> one of our switches, and has been slow in offering up specific information
> about the remedy or what dates can be expected to be affected, so hopefully
> this information can be of use to someone else. It’s possible that there’s a
> software update that fixes this, from what I gathered from Mellanox, but I’ve
> not been able to find anything specific yet.
>
> The symptom is all switch port lights turning amber, and all connectivity
> being lost. A power cycle corrects the problem — until the next time it
> happens.
>
> --
> ____
> || \\UTGERS, |---------------------------*O*---------------------------
> ||_// the State | Ryan Novosielski - novos...@rutgers.edu
> || \\ University | Sr. Technologist - 973/972.0922 (2x0922) ~*~ RBHS Campus
> || \\ of NJ | Office of Advanced Research Computing - MSB C630, Newark
> `'
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