[Info-vax] Eisner? Down? (10 days later)

[John E. Malmberg]

DeCoy wrote:
> "G Cornelius" <cornelius at eisner.decus.invalid> wrote in message 
> news:4960b9bf$0$48218$815e3792 at news.qwest.net...
>> I'm 3-4 hours away, and am willing to help. Might even have a spare DS20
>> available. Unfortuneately, starting Tuesday I'm on a short tether (pager)
>> for about a week.
>>
>> -- 
>> George Cornelius                       cornelius at mayo dot edu
>>
> 
> Thanks, George.  The problem appears to be storage-related, perhaps with the 
> RAID array on the Mylex controller, and perhaps with either controller 
> hardware or controller configuration.
> 
> Expertise in diagnosing (and perhaps fixing) Mylex controller symptoms would 
> be initially useful.

The mylex controller can not handle logical volumes greater than a 
certain size.  If I recall correctly it was either 9 or 18 GB.  It has 
been a long time.

This leads to a restriction on the size of the physical replacement drives.

I have seen the use of larger (unsupported) drives as long as the size 
of the resulting logical volumes are below the size limitation of the 
controller.

The RCU utility is on the ALPHA firmware disk, and must be run from the 
console mode.

The ALPHA flavor of the mylex controller is different than the Intel 
version at least at the firmware level.  I do not know if they can be 
interchanged with just an adjustment to the firmware.

I only used the Mylex controller on one VMS/Alpha system, and that was 
quite some time ago.

I think battery backed up cache was an option on that controller.

-John
wb8tyw at gmail.company
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