Date: Mon, 16 Jun 1997 20:47:41 -0700 (PDT) From: Simon Shapiro <Shimon@i-Connect.Net> To: Tom Samplonius <tom@sdf.com> Cc: "Justin T. Gibbs" <gibbs@plutotech.com>, FreeBSD-SCSI@FreeBSD.ORG, FreeBSD-hackers@FreeBSD.ORG Subject: Re: Announcement: New DPT RAID Controller Driver Available Message-ID: <XFMail.970616204741.Shimon@i-Connect.Net> In-Reply-To: <Pine.BSF.3.95q.970616174728.11083C-100000@misery.sdf.com>
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Hi Tom Samplonius; On 17-Jun-97 you wrote: > > On Fri, 13 Jun 1997, Simon Shapiro wrote: > > ... > > The driver supports the PM3334{U,W,D} which is a PCI controller > > sporting a 68030 processor, up to 3 SCSI ultra-wide-differential > > busses. It is also available (I think) as narrow, non-ultra and > > definitely single-ended. > > www.dpt.com says this controller has a 40mhz 68040 ?? I know it is an abomination to have a Motorola processor in a computer dominated by the holy Intel processor. But, in case you can stomach the idea for a while, it actually works well. Those of you who insist that their computer is maintained purely Intel will be glad to know that (as I am told), the next generation will have an i960 instead. > ... > > I would like you to help me in posting an announcement on the proper > > FreeBSD lists and in checking it in. > > Anyone volunteered for the check-in yet? Has a FreeBSD 2.2.2-RELEASE > boot disk been made with the DPT driver? Yes, Justin Gibbs. He has been very helpful and now even insists that the driver complies with the BSD coding standards. I am indenting and indenting... :-) > I'm looking at a RAID solution for a freebsd server I'm building. > Reliability is important (previous server had an uptime of 209 days > before > a flaky disk forced a reboot!). Basically, either I use the DPT > controller, or a Mylex SCSI-to-SCSI controller connected to a standard > PCI > controller. The Mylex solution is kinda slow, but since it simply > appears > as a really big disk connected to your SCSI bus, it is almost > guarrenteeed > to work with FreeBSD. The DPT controller is doing the same thing. Since 1982. I think you will find the support, the configuration utilities (in native mode!), the perfomance and the complete integration (You will get a beep, console output, syslog, SNMP event and a can of diet soda whacked on the head every time: a. Bus Glitch b. Fan failure in the disk enclosure c. Power supply failure d. Disk failure. If you have a spare disk plugged in, you will also get aotomatic re-build of the array. Oh, did iI mention all power supplies are redundant and all disks are hot pluggable without any software intervention? >From us (the Atlas team), you also get multi initiator support, performance monitoring, Distributed Lock Manager and Distributed I/O. ... The option for 200+ days between boots will only come later. Right now we are delivering 14 days between boots (the anticipated frequency of enhancements posted for the driver). Simon
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