Re: load source concurrent maintenance

lbolhuis@xxxxxxxxxx wrote:

Joe,

You are not SOL if D01 dies, only if it Dies and then you power off the system before you replace it. D01 (like all the others) can be concurrently replaced and rebuilt with no loss of data or uptime. The 'Gotcha' is that if D01 is dead and you power down you cannot IPL from that drive because it's dead. Unless they've beefed up the logic in the RAID cards significantly then you would be stuck with a System reload at that point.
As a matter of practice we NEVER recommend powering down a system with ANY failed drives no matter which one it is unless that's the Only way to replace the drive. (Many older systems in the bottom end 270 and previous had this restriction.)

I do have the bottom end 270. So if it throws D01, I may well be out of luck; that's a VERY nasty gotcha. My only hope will be to pop the drive, stick a new one in, and tell it to rebuild. If it works, I'll be in good shape. If not, I'm in for a complete reload and I'm not looking forward to that.

Seems to me that maybe the old 270 was not the best choice for my long-term production machine. But if I keep good backups and it does throw D01 and I have to reload, I can always switch to mirroring before I do the reload.

Joe