Date: Fri, 12 Sep 2008 08:11:16 +0200 From: Laszlo Nagy <gandalf@shopzeus.com> To: freebsd-hardware@freebsd.org Cc: Tony Nagy - SHOPZEUS <tony@shopzeus.com> Subject: Intel Server Board S5000PSLROMB + SAS ROMB Message-ID: <48CA0804.5080508@shopzeus.com>
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I'm about to buy a new server. There is a local distributor here and they offered good prices. The server will have 2 SAS disks in RAID-1 and 8 or 10 SATA 2 disks in RAID 1+0. Others told me that I MUST ask the hardware list before I buy it. Here is their opinion: > I don't know anything about how well this Intel RAID performs under > FreeBSD, but you should check that if you haven't already. From the > little bit I read about it I'm concerned if it's fast enough for as > many drives as you're using. The wrong disk controller will make a > slow mess out of any hardware you throw at it. And here is the hardware: - Boxed Intel Server Board S5000PSLROMB with 8-port SAS ROMB card (Supports 45nm processors (Harpertown and Wolfdale-DP) - Intel® RAID Activation key AXXRAK18E enables full intelligent SAS RAID on S5000PAL, S5000PSL, SR4850HW4/M, SR6850HW4/M. RoHS Compliant. - 512 MB 400MHz DDR2 ECC Registered CL3 DIMM Single Rank, x8(for s5000pslromb) - Intel® RAID Smart Battery AXXRSBBU3, optional battery back up for use with AXXRAK18E and SRCSAS144E. RoHS Complaint. - 4-drive SAS/SATA backplane with expander (requires 2 SAS ports) for SC5400BRP and SC5400LX (two pieces) The basic question is: - how well is this configuration supported in FreeBSD 7? - is this RAID controller fast and reliable with 10 or more disks? Can it take advantage of the disks, or should I use a different controller? Thanks, Laszlo
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