From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Nigel Roles" To: <9fans@cse.psu.edu> Subject: RE: [9fans] scsi raid controller Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit In-Reply-To: Date: Mon, 14 Apr 2003 14:24:10 +0100 Topicbox-Message-UUID: 8f9acdfc-eacb-11e9-9e20-41e7f4b1d025 At a guess it's an external box which emulates a SCSI hard disk, but consists of a RAID processor and a bank of drives. Any configuration/rebuild is controlled by a front panel. There are also 2 or 3 drive + CPU combos you can get for PCs which again emulate a single IDE/SCSI drive. These typically have hot swap trays and a small LCD to control them, so that the host PC needs no extra hardware or software. Quite a nice way to do it, but not very cheap. -----Original Message----- From: 9fans-admin@cse.psu.edu [mailto:9fans-admin@cse.psu.edu]On Behalf Of Russ Cox Sent: 14 April 2003 13:56 To: 9fans@cse.psu.edu Subject: Re: [9fans] scsi raid controller > There's no support for SCSI RAID devices. If you can get them to imitate > a standard controller, it might work. Our main Venti server runs on a big RAID. I don't know details of how it works, but it does work. Presumably it does imitate a really big disk. There's definitely no support for software RAID, though if you want mirroring there's fs(3).