Question: Disk Mirroring preceding RAID?

From: Eliot Moore <elmo_at_mminternet.com>
Date: Tue Dec 5 00:09:55 2000

Stan Sieler wrote:

> Need help in settling argument...does disk mirroring (via hardware)
> predate RAID's mirroring capability? (I'm not interested in
> OS software implemented mirroring here.)

At least in actual use.
The Sigma/Webster q-bus SMD and ESDI controllers provided drive mirroring
for PDP-11 and uVax systems, at least a year before I recall any RAID
technology being sold.
Received on Tue Dec 05 2000 - 00:09:55 GMT