On Wed, Jul 11, 2001 at 12:57:26PM +0100, Paul Mc Auley mentioned:
> Provided no data transfer is happening on the bus at the time. Even
> then, it is possible to have devices/backplanes which do not really
> support hot plugging, besides which, pulling out a disk which is
> spinning at 10k RPM might have secondary consequences.
Heh. Memories of a support call I took while doing Solaris phone tech
support. An admin had decided to give a demo to his boss of their new
(live) Sun E450 running Oracle, with 20 disks, in a RAID configuration.
"You know the way Sun machines support ``Hot plug'' disks ?"
"Er, yes. If you offline them first."
"What's happened ?"
"Well, I pulled out twelve of the disks, to show our manager how reliable
the system was, and Oracle stopped. How do I get it working again ?"
"Do you have backups ? "
"No. We've only had the system setup a week"
"I'll put you through to professional services. Your system is
irrecoverable, most likely".
Then, I put down the phone and laughed heartily.
When I say 'free', I mean 'free': free from bond, of chain or command:
to go where you will, even to Mordor, Saruman, if you desire. "
-- Gandalf, paraphrasing the choice between Free and Non-free software
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