Date: Wed, 19 Oct 2005 13:02:44 -0200 From: =?ISO-8859-1?Q?Tulio_Guimar=E3es_da_Silva?= <tuliogs@pgt.mpt.gov.br> To: freebsd-performance@freebsd.org Subject: Re: SATA: RAID 5 controller recommendations Message-ID: <43566014.3060604@pgt.mpt.gov.br> In-Reply-To: <00ef01c5d4b4$b9bb0350$7f06000a@int.mediasurface.com> References: <000801c5d434$579de280$b3db87d4@multiplay.co.uk><200510181620.13588.Peter_Losher@isc.org> <43564A56.1010602@pgt.mpt.gov.br> <00ef01c5d4b4$b9bb0350$7f06000a@int.mediasurface.com>
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Wow! Nice to know, then. The only machine that uses a reasonable (not even high) amount of small writes is under RAID 1+0 (or 0+1, donīt remember). The other are mainly backup and department storage. Iīm now warned. :P Thanks and sorry, Túlio G. da Silva Steven Hartland wrote: > Unfortunately the 1820A is the one I have and its major unstable under > high transaction RAID5 ( rsyncing a LARGE amount of small files ). I've > contacted highpoint but after an initial promising email that they have > forwarded the problem to engineering they are now refusing to respond > to email. Been that way for nearly a month now so time to send it back > and move to another manufacture. > > Steve / K > ----- Original Message ----- From: "Tulio Guimarães da Silva" > <tuliogs@pgt.mpt.gov.br> > To: <freebsd-performance@freebsd.org> > Sent: 19 October 2005 14:29 > Subject: Re: SATA: RAID 5 controller recommendations > > > For price/benefit, I too recommend the HPTs, specially the 1820A. Itīs > not THE killer for speed, but itīs fairly stable, factory-supported on > FBSD, has good management utils (including remote, via daemon) and is > about half the price of its competitors. Besides, the "A" model has its > own XOR processor, what apparently frees some CPU usage (I canīt really > tell, since we use them on quite good machines and havenīt seen good > benchmarks comparing 1820 to 1820A). > In addition, itīs low-profile, fitting even 1U rack servers, and > provides its own brackets for low- and high-profile... *but* it has no > integrated memory, and no I2C options, if itīs an issue. Itīs the only > downside with them, in my opinion. > In the other hand, I would take a look at the Arecaīs, itīs not the > first time I hear good comments on these. Theyīre double the HPTs price, > but come with onboard ECC SDRAM and I2C features. Sounds good to me. ;) > Good luck. :) > > Túlio G. da Silva > > Peter Losher wrote: > >> On Tuesday 18 October 2005 03:36 pm, Steven Hartland wrote: >> >> >>> Anyone got any SATA RAID 5 controllers they can recommend >>> 64Bit PCIX. >>> >>> >> >> I personally would reccommend the HighPoint RocketRAID series (we use >> the >> 1820A here on a dual Opteron system running 5.4/amd64) We are using >> the >> HP-provided hpa.ko amd64 kernel module, but thanks to HighPoint and >> Scott >> Long, -CURRENT, 6.0 and 5-STABLE now have the amd64 driver integrated >> into /usr/src tree . (a previous i386 version of the driver has been >> there >> since 5.3) >> >> Best Wishes - Peter >> >> > > > > -------------------------------------------------------------------------------- > > > >> _______________________________________________ >> freebsd-performance@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-performance >> To unsubscribe, send any mail to >> "freebsd-performance-unsubscribe@freebsd.org" > > > > > ================================================ > This e.mail is private and confidential between Multiplay (UK) Ltd. > and the person or entity to whom it is addressed. In the event of > misdirection, the recipient is prohibited from using, copying, > printing or otherwise disseminating it or any information contained in > it. > In the event of misdirection, illegible or incomplete transmission > please telephone (023) 8024 3137 > or return the E.mail to postmaster@multiplay.co.uk. > > _______________________________________________ > freebsd-performance@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-performance > To unsubscribe, send any mail to > "freebsd-performance-unsubscribe@freebsd.org" > >
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