SATA: RAID 5 controller recommendations

[Tulio Guimarães da Silva]

  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, don´t 
remember). The other are mainly backup and department storage.
  I´m 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 at pgt.mpt.gov.br>
> To: <freebsd-performance at 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. It´s
> not THE killer for speed, but it´s 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 can´t really
> tell, since we use them on quite good machines and haven´t seen good
> benchmarks comparing 1820 to 1820A).
>  In addition, it´s 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 it´s an issue. It´s the only
> downside with them, in my opinion.
>  In the other hand, I would take a look at the Areca´s, it´s not the
> first time I hear good comments on these. They´re 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
>>
>>
>
>
>
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