Mellanox IB SB7800 Drive Failure

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barnstormer

New Member
Dec 27, 2022
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Good morning,

We've had an SSD on our sb7800 infiniband switch fail, have installed a new drive with a cloned image from one of our other identical switches. So far everything looks ok in the management interface, aside the Host ID. Though we do get 1003, 1006 errors when trying to modify some settings, and the time.

Does anyone know how this can be changed? I was unable to locate it in the manual or menus

Also, in the event of an SSD failure, I also contemplated installing the mlnxOS via usb with a blank SSD installed. Curious if anyone has had to do this and can recommend the best course of action.

Thank you in advance!
 

necr

Active Member
Dec 27, 2017
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if you're running 7800 in anything resembling a production environment, I'd rather buy support and RMA the switch.
From the SX6012 experience and a few forum threads here, there are some manufacturing scripts that run on the device that populate the internal database which is located on a different partition. That DB can include information about BIOS, serial numbers and other HW-specific information. TBH I wouldn't waste time if the switch performs its functions and monitoring works.
 

barnstormer

New Member
Dec 27, 2022
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It is a 6 year old switch we want to keep as a spare for our cluster, was hoping someone had done the process before. I have the ONIE iso and an image of mlnx OS 3.10.4006 that I manage to find online.

I suppose I will try a usb install to a blank drive, hopefully the scripts will run
 

sbstn

New Member
Mar 27, 2025
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Aware this is 27 months old, i wonder if you went ahead and succeeded with your plan? or whether others have experience with this?
Finding myself in the same situation (a very old SB7800 with crashed SSD (i think)), considering same solution ...
 

NablaSquaredG

Bringing 100G switches to homelabs
Aug 17, 2020
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Thank you - at the moment we are still in the process of examining if we have anything to write the firmware/OS to ...
Buying a decent mSATA SSD shouldn't be too much of an issue hopefully (30-50€...)
 

sbstn

New Member
Mar 27, 2025
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Buying a decent mSATA SSD shouldn't be too much of an issue hopefully (30-50€...)
No, the 50€ are certainly not an issue - i just hadn't seen the box open yet, and wasnt so sure how easy to get to and swap that SSD is - now after watching this unboxing vid,
, i am confident :) ... Storfly 300xe SSD.

(I hadnt been able to find any images of the open SB7800 before)