Date: Tue, 11 Sep 2007 13:09:31 -0700 From: "Mike Sweetser - Adhost" <mikesw@adhost.com> To: <freebsd-questions@freebsd.org> Subject: RE: Best SCSI or SAS RAID for a NAS? Message-ID: <17838240D9A5544AAA5FF95F8D5203160279A3C0@ad-exh01.adhost.lan> In-Reply-To: <20070911182712.H3142@wojtek.tensor.gdynia.pl> References: <17838240D9A5544AAA5FF95F8D5203160279A27B@ad-exh01.adhost.lan> <20070911182712.H3142@wojtek.tensor.gdynia.pl>
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Thanks for the replies, everybody. > Its not just the controller you should be checking. =20 > The drives RPM speed, how many drives in the array, =20 > are you using RAID 0+1 or just RAID 5 for the array. =20 > Could you give more details on these issues? The array's running RAID 10 with basically the minimum drives for RAID 10; drives are 15K SCSI. I'd think this would be enough. > no RAID controller, lots of cheap disks and thinking=20 > about how to RIGHT set UP gmirror/gstripe/gconcat will=20 > give you best performance. The concern is that this array is mounted over NFS by a number of different servers, all with constant read/write, so this is why we need throughput as high as we can get. Right now, we're only getting a fraction of the performance we theoretically should be getting. Mike Sweetser -------------------------- Mike Sweetser | Systems Administrator Adhost Internet 140 Fourth Avenue North, Suite 360, Seattle, Washington 98109 USA P 206.404.9023 T 888.234.6781 (ADHOST-1) F 206.404.9050 E mikesw@adhost.com W adhost.com Our brand new Adhost West data center is open - contact us for a tour at 1-888-234-6781 (ADHOST-1) -----Original Message----- From: owner-freebsd-questions@freebsd.org [mailto:owner-freebsd-questions@freebsd.org] On Behalf Of Wojciech Puchar Sent: Tuesday, September 11, 2007 9:28 AM To: Mike Sweetser - Adhost Cc: freebsd-questions@freebsd.org Subject: Re: Best SCSI or SAS RAID for a NAS? > We're looking for opinions on what the best RAID controller would be for no RAID controller, lots of cheap disks and thinking about how to RIGHT=20 set UP gmirror/gstripe/gconcat will give you best performance. _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"
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