Date: Tue, 3 Mar 1998 09:01:13 -0500 From: sbabkin@dcn.att.com To: tlambert@primenet.com Cc: shimon@simon-shapiro.org, wilko@yedi.iaf.nl, grog@lemis.com, jdn@acp.qiv.com, blkirk@float.eli.net, hackers@FreeBSD.ORG Subject: RE: SCSI Bus redundancy... Message-ID: <C50B6FBA632FD111AF0F0000C0AD71EE4132CD@dcn71.dcn.att.com>
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> ---------- > From: Terry Lambert[SMTP:tlambert@primenet.com] > > > Huh ? Probably I've missed something about RAIDs. I've thought > > that, for example, RAID block 0 consists of blocks 0 of all > > the physical disks. And so on. And I've thought that RAID itself > > does not allocate any blocks, the upper level like filesystem or > > volume manager does it, RAID just makes chechsuming. Am I wrong > again ? > > If I allocate N stripes on M devices, I have N/M stripes per device. > > If I add a device, I do not automagically end up with N/(M+1) stripes > per device. I have to move some stripes around. > Absolutely agreed, and what I wrote was how this moving around can IMO be implemented. -SB To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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