Date: Sun, 25 Mar 2001 11:57:27 +0100 (BST) From: Tim Joseph <tim@weeble.org.uk> To: <freebsd-questions@freebsd.org> Subject: Simple SCSI/RAID on FBSD 4.x Message-ID: <Pine.BSF.4.33.0103251148440.69306-100000@doubtful.weeble.foo.uk>
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Hi, I'm looking to improve the I/O performance on my FreeBSD box, and the twin thoughts of SCSI and RAID came to mind. I don't currently have a SCSI controller, nor do I have any RAID experience. My questions are: 1. Will software RAID 0 noticeably improve disk performance, even if all of the disks are connected to the same controller? Is there a tailing off of performance once you're past 2 or 3 disks on the same controller? 2. Will a hardware RAID controller be worth it for just RAID 0? 3. Which "width" of SCSI gives the best bang for buck performance? 4. Are most SCSI drives now of a particular type (eg UW)? 5. Can I RAID a couple of hardrives, and have a separate CDRW/DVD unit on the same controller? 6. Any recommendations for SCSI controllers, RAID controllers and/or SCSI disks? Thanks. From, Tim To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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