[Info-vax] Boot drive died on a shadowed system disk

[Martin Vorlaender]

Phillip Helbig wrote:
> Rich Jordan writes:
>
>> > Can't the DS10 have two devices as default boot device?
>> > The though is to have a system that always boots when one
>> > of the system disks is "gone".
>
>> I'll check the console manual for multiple boot devices.  Its still
>> going to take an onsite hands-on to update the console though.
>
> Especially in a case like this (remote site), I would want both units in
> the list on the console.  (Most or all consoles I've seen limit the
> number in the list to 2, although one can have more members in a shadow
> set.)

I have configured multi-path DG boot devices on Alphas with firmware 7.3,
mostly DS15, ES45, and ES47.

IIRC, the maximum length of the BOOTDEV_DEF console variable is 256.
Within that limit, it takes as many boot devices as you want (think
2 HBAs and 2 EVAs = 4 paths x 2 EVAs = 8 bootable DGA devices).

FWIW, the latest console firmware takes a maximum of 16 FC translations;
before that, it was limited to 8 (or 4?).

cu,
   Martin
-- 
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