Re: Remote IPL form telnet

[Tom Liotta <qsrvbas@xxxxxxxxxxxx>]

Wayne McAlpine wrote:

> Paul called it "sticktion."  When you have 6607 drives you aren't 
> getting new ones from IBM and they don't seem to come in as quickly as 
> they used to.

That's the reason I regularly cycle them -- to provide some exercise 
that (1) _SEEMS_ to reduce that chance of "sticktion" ever showing 
up, and (2) tells me that it has shown up before I find out by accident.

"By accident" means at some unplanned time (power outage, hardware 
maintenance, whatever) when I've scheduled a block of time for a 
specific task. I don't want to discover a "stucktioned" drive when 
I'm powering up from adding a couple memory sticks or after a power 
outage. I'd rather discover it when I choose to discover it. I'd 
rather not have an additional unexpected bunch of time after my 
scheduled time.

But it's purely personal preference.

Tom Liotta

> Tom Liotta wrote:
> > Wayne McAlpine wrote:
> > > I've found it to be good practice to do a PWRDWNSYS RESTART(*YES) 
> > > instead of a complete powerdown, particularly if your disk drives are 
> > > getting on in years.
> >
> > I'm almost the exact opposite for my system at home. I not only power 
> > down fully once a week, I also let it sit long enough for general 
> > cooling of components before having it start back up. During the power 
> > cycle has been when I've seen most related problems. (Yes, I realize 
> > that this can accumulate stress in some of the hardware; but I don't 
> > expect it to last forever anyway.)
> >
> > If it's gonna fail, I want it to fail on _my_ schedule as much as 
> > possible.
> >
> > But that's my system at home. Not always so easy to do with employers' 
> > systems.