I'm consulting for a big company where they renewed all their equipment (bladesystem and 3par) with new HPE gear based on synergy 12000 and primera storage.
The Synergy has 4 mellanox SH2200 switches with 40/100gb uplinks but they are turning out to be a nightmare for connecting to customer's core (RJ45 1Gb) HPE designed (In my country HPE is known for bad design ideas) HPE had to provide an Aruba switch with 4 sfp+ ports to connect the Mellanox to customer core switch, but connection has turned out to be very unreliable.
On fiber using transceivers from Mellanox and Aruba it was a no go. (No connection and link stayed down)
Using DACs with a HPE qsfp to sfp+ adapter on Mellanox side works, but sometimes after a reboot or test the links don't come up and stay down between Aruba and Mellanox. ( And only DACs from OEM tyco work, Teralux's OEM DACs just don't work)
We are hoping that a qsfp to quad sfp+ breakout cable will work better for we are not very confident on this, that's why I'm trying to investigate if we are the only ones that have trouble with Mellanox switches.
Have you ever seen anything like this?
If so, what you did to solve the problem?
Thanks.
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