Subject: Re: RAID In general (Re: Hot Swappable IDE Kits)
To: None <>
From: Greywolf <>
List: current-users
Date: 04/16/2003 13:52:16
Thus spake Chuck Yerkes ("CY> ") sometime Today...

CY> Quoting Caffeinate The World (
CY> > For SCSI we have scsictl to rescan the bus. What about IDE? I see these
CY> > hotswappable IDE kits. How do they work? Does NetBSD support it?
CY> Look, you seem to be obsessing on the importance of RAID
CY> and removable disks.  I've used this forever for ANY OS.
CY> My MAC can deal with it.

I think you might be missing Caffeinate's point of interest, one which
I also happen to share.  He's not looking for RAID, as I read it.  He's
merely asking about hot-swappable IDE.

I am looking for something similar, actually, not for a RAID pretense
at all.  Let me offer a clue:

	- It's faster than tape or CD/DVD.
	- It holds more data than tape or CD/DVD.

Right.  Backups.

There are no removable media out there which will hold an entire drive's
worth of data, given maximal sizes of each.  This has always been a problem,
and it's more so now given the sizes of disks vs. the sizes of tapes.

That stated, probably redundantly, I would love to have a hot-swap IDE drive
solely for this purpose.  A drawer full of 100G drives can be had more
cheaply than DLT media of comparable capacity.  The properties of a removable
drive also will insure that, since it won't be on line, I won't be tempted
to use it for something else.

"I didn't get where I am today without using NetBSD."