Re: Remote IPL form telnet

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.