[Info-vax] HSZ console drops to NINDY...

[VAXman- at SendSpamHere.ORG]

In article <9ecsp8-u122.ln1 at news.sture.ch>, Paul Sture <paul.nospam at sture.ch> writes:
>On Wed, 16 Nov 2011 12:23:35 +0000, VAXman- wrote:
>
>> In article <tkjcp8-u931.ln1 at news.sture.ch>, Paul Sture
>> <paul.nospam at sture.ch> writes:
>>>On Tue, 15 Nov 2011 22:41:29 +0000, VAXman- wrote:
>>>
>>>> Well, FWIW, the HSZ will still not maintain the time after I set it.
>>>> I'll SET THIS/OTHER TIME=dd-mmm-yyyy:hh:mm:ss and then, if I issue a
>>>> SHUTDOWN THIS/OTHER and restart it, it comes up with TIME NOT SET.   
>>>> I thought that the CR2032 was backing that up but apparently not.
>>>
>>>I assume the battery is OK?  HSJs and HSZs can happily go wrong if the
>>>battery is on the way out.
>> 
>> This is what precipitated this whole discussion -- the replacement of
>> the CR2032.
>> 
>> It was a brand new battery tested on both a battery tester and my
>> Wavetek 27XT.
>
>The catastrophe we had with this was due to what should have been a 
>routine bit of server room work.  Typical scenario: shut down servers on 
>Friday night, let the electricians / air con / network people loose on 
>Saturday, restart servers on Sunday (and maybe replace the odd disk which 
>didn't come back - we had a lot of disks).
>
>Having the power off for so long meant that one of the HSJ batteries was 
>completely dead by the time power came back.  Since I wasn't in 
>attendance that time, I'm not familiar with the precise details of what 
>happened, but the upshot was that disks connected to that controller got 
>corrupted.
>
>Yeah, we had backups, but disk corruption really should not have 
>happened, and I believe DEC/Compaq received some high level flack about 
>this.
>
>It raised the question of "how old is a battery?" in the context of field 
>service replacements.
>
>I know have some piece of consumer kit here where when replacing a 
>battery you are supposed to insert the new one within something like a 
>couple of minutes of power off if you want to save the device settings...

I have, and they should be delivered today, two new cache batteries on
the way.  http://www.tnrbattery.com/Compaq/images/12-46670-01.png  $45
for each one!

I did find a scrusty solder joint on the CR2032 button cell holder.  I
unsoldered the (-) side and the (+) was so loose it just fell off the
board.  I cleaned things up, resoldered it and hopefully, this and the
new cache batteries will get my clock setting to be retained.
-- 
VAXman- A Bored Certified VMS Kernel Mode Hacker    VAXman(at)TMESIS(dot)ORG

All your spirit rack abuses, come to haunt you back by day.
All your Byzantine excuses, given time, given you away.