Date: Fri, 08 Jun 2007 16:20:18 +0200 From: Lukas Razik <lukas@razik.de> To: matthew@digitalstratum.com Cc: freebsd-hardware@freebsd.org Subject: Re: Promise TX2300 array not detected. Message-ID: <466965A2.9040603@razik.de> In-Reply-To: <25389.192.85.50.1.1181242998.squirrel@24.56.193.117> References: <4662E72B.70003@digitalstratum.com> <4662F5BF.4090709@razik.de> <4663496A.40202@digitalstratum.com> <466718DC.2030600@razik.de> <46674449.6090109@digitalstratum.com> <46678017.6080602@fluffles.net> <21250.192.85.50.1.1181233456.squirrel@mundomateo.com> <20070607164653.GB95991@keira.kiwi-computer.com> <25389.192.85.50.1.1181242998.squirrel@24.56.193.117>
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Matthew Hagerty schrieb: > On Thu, June 7, 2007 12:46 pm, Rick C. Petty wrote: > >>On Thu, Jun 07, 2007 at 12:24:16PM -0400, Matthew Hagerty wrote: >> >> >>>After the second install, everything came up on the ar0 array >>>and worked fine. I ran some basic stress tests and was getting 16MB/sec >>> write speed and 46MB/sec read. >>> >>>So, I'm off to find a "real" SATA2 PCI RAID card... :-( >>> >> >>"real" RAID cards cost an order of magnitude more than fakeraid cards. >>What is your reason behind getting real hardware RAID? From my own >>personal testing and online research, software RAID outperforms most real >>RAID cards. So if your reasoning is based on performance gain, you may >>be in for another shock. If your reasoning is so that you can multi-boot >>different OSes without requiring drivers, then you may have a compelling >>reason to go to hardware RAID. However, most cases fakeraid is good >>enough. >> >>-- Rick C. Petty >> >> > > > My reasoning for a hardware RAID is so I can set it and forget it. If a > drive fails (I'm setting up a mirror), I want to be able to just swap the > drive and carry on without worrying about having to do something at the > BIOS or OS level (controller should rebuild the mirror). Performance in > my case is tertiary to reliability and stability. The TX2300 might have > been the wrong choice, but you would not have known from reading the > marketing material... > > The TX2300 was also blowing errors taskqueue timeout errors > (http://www.mail-archive.com/freebsd-hardware@freebsd.org/msg01541.html) > on the first machine I had it in, so now I'm a little skeptical about > using the card. > > Matthew > > > _______________________________________________ > freebsd-hardware@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hardware > To unsubscribe, send any mail to "freebsd-hardware-unsubscribe@freebsd.org" > Hi Matthew! As I wrote you in my first eMail I took the 3ware 8006-2LP 2-port SATA RAID Controller (REAL HARDWARE RAID) which you can get new under $150 and used under $100... It works vergy good with FreeBSD (maybe also with other BSDs) Linux and Windows. I've compared its performance with my TX4310 (which is similar to the TX4300 but with RAID5 support and the TX4300 is same like TX2300 but has 4 ports) under Windows XP with SiSoft Sandra. The 8006-2LP has a better performance than the TX4310 although it's SATA. I don't think that it's important if you use a SATA or SATAII controller because the bottleneck will be your hard discs. Another advantage of Hardware RAID cards is that they don't stress the CPU like Software or Fake RAID cards so you get more computing time for other programs. Regards, Lukas
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