[f-nsp] Brocade / Extreme VDX 6740 and ISSU

[Robert Hass]

According to TAC some fixes (like patch for flash corruption) are kernel
related and it's why they need full restart instead of ISSU.


On Fri, Jul 24, 2020 at 4:39 PM Gerald K. <gerald at ax.tc> wrote:

> >
> > On 21.07.20 22:50, Robert Hass wrote:
> >> For all upgrades where compact-flash corruption fix is required you
> >> cannot use ISSU.
> >> This is what I heard from GTAC upgrading all our VDXes.
>
> Yes, ISSU have not work in our situation on the switch with the probably
> faulty flash inside. We've tried it but at some stage it complain "disk
> SCSI errors", cancels the update and revert itself back to the old
> software version.
>
> But I was able to manually "netinstall" (*) from USB Software 6.0.2h on
> all 4 partitions of the switch without any errors and now the switch is
> back in the fabric.
>
> Of course that do not fix any flash corruption. But it prevents a little
> bit from getting worse hopefully.
>
> Gerald
>
> (*)
>
> https://gtacknowledge.extremenetworks.com/articles/Q_A/How-to-perform-netinstall-on-VDX-6740-and-6940-via-USB
>
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