Date: Sat, 28 Sep 1996 16:33:27 -0500 From: rkw@dataplex.net (Richard Wackerbarth) To: Peter Childs <pjchilds@imforei.apana.org.au> Cc: freebsd-scsi@freebsd.org Subject: Re: striping/mirroring? Message-ID: <v02140b01ae7348487d86@[208.2.87.4]>
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> I'm really quite interested in how you propose to have a mirrored > system where drives can run at different steeds. Mirror works like > this > > DATA ----> (going to disk) -------+--(and another copy)----+ > | | > disk 1 disk 2 > > So if i send some data to the (mirrored) disk, and disk1 > is significantly faster than disk2, then disk1 will finish the write > first.... so then do i just let it write more? No. However you can READ from disk1 while you wait for disk2 to finish. This may work particularly well in a case that most of the operations are reads. For example, a web server could be expected to have mostly reads with only a few writes.
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