Date: Wed, 26 Nov 2003 01:33:43 -0600 (CST) From: James Van Artsdalen <james-freebsd-amd64@jrv.org> To: freebsd-amd64@freebsd.org Subject: Re: disk controllers w/ 64-bit addressing? Message-ID: <200311260733.hAQ7XheT012676@bigtex.jrv.org>
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This is not exactly an authoritative or complete answer from HighPoint, but it does suggest there's hope for an (relative to SCSI) economic means of a disk system that doesn't need bounce buffers. Does anyone in FreeBSD already have a contact at HighPoint or should I nag them to cough up a datasheet for whatever IC is used? The pictures show eight SATA ports and one control IC with no ATA-to-SATA adapter chips in sight, so this probably isn't one of the chips listed on their site but rather something new. Date: Wed, 26 Nov 2003 14:48:43 +0800 To: James Van Artsdalen From: "HighPoint Technologies Inc." <support@highpoint-tech.com> Subject: Re: RocketRaid 1820 Dear Sir / Madam, Thanks for your contacting us! The current driver for RR1820 only can work on the 32-bit OS. If you use the 32bit OS on Opteron, RR1820 can work properly, for Memory Addressing, it is determined by the operating system directly. The 64bit-driver(Support 64bit OS) will support 64bit addressing, but it hasn't released yet. Regards, HighPoint Technologies Inc. At 04:13 2003-11-26, you wrote: >Is the datasheet on the controller for the 1820 available? > >Can the 1820 address memory above 4 GB (i.e., Opteron)? > >I can see that the 1820 does 64-bit data: the question is if it does >64-bit addresses too.
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