Organization: Medical College of Wisconsin, Milwaukee, WI
Lines: 52
In article <5940@npri6.npri.com>, richard@npri6.npri.com (Richard Head) writes:
> sdroppers@pbs.org writes:
>
>>In article <1992Jul20.135138.938@beckman.com>, dsroberts@beckman.com writes:> cluster. He did not use the STARTUP$STARTUP_VMS and STARTUP$STARTUP_LAYERED
>>> ...stuff removed...
>>> In any case, perhaps some of you would like to share how your startup is
>>> configured so perhaps I can glean some improvements that would apply to us.
>>>
>>We have had very good results starting the batch queues and then sending
>>jobs off in the batch queues. We cut our reboot time from 45 minutes to about
>>15 minutes this way. We abandoned the DEC supplied startup since we could not
>>specify the batch queue to start jobs in.
>>
>>By using batch queues we can also specify the exact order items are started.
>
> Interestingly enough, I had the opportunity to view the startup procedures of
> a large and strategically important Digital internal VAXcluster system.
> I didn't bother to check if they were using the STARTUP$STARTUP_LAYERED data
> file scheme, but they had a *lot* of startup procedures submitted to batch
> queues. Almost nothing was executed during SYSTARTUP_V5. I counted at least
I use batch queues too. (I have two single-threaded batch queues for this,
so I "sort of" have parallel startup... i.e., any jobs that are
dependant on order (i.e., tcp/ip, mx, uucp, etc.) get submitted IN order
to a specific queue).
Another side benefit of this is kind of having a "minimum" startup
if I need to. I.e., i may not necessarily want p1 set to 'MINIMUM',
but I certainly have the option of stopping the batch queue(s) right
away if I want to prevent further startup.
I haven't had the time to seriously investigate the SYSMAN startup
procedures (mostly because I don't see the NEED. Our system
is a single large system. If I was in a huge cluster, I'd probably
more seriously consider the SYSMAN stuff...)
I wonder what's next... SYSTARTUP_v6? :-)
> I personally don't have enough products to even bother investigating this
> bit of VMS "boot trivia", but I would favor the batch method if I did.
ditto. (about the only thing I do DIRECTLY in SYSTARTUP is mount
my disks, define logical names, and then fire off all the other
batch jobs). "works for me".
--
Kent C. Brodie - Sr. Systems Manager InterNet: brodie@fps.mcw.edu