From: Maurice Hilarius <maurice@harddata.com>
To: Hans-Peter Jansen <hpj@urpla.net>
Cc: linux-raid@vger.kernel.org, xfs@oss.sgi.com,
linux-kernel@vger.kernel.org
Subject: Re: 3ware 9650SE-16ML w/XFS & RAID6: first impressions
Date: Sun, 07 Dec 2008 11:35:17 -0700 [thread overview]
Message-ID: <493C1765.7070901@harddata.com> (raw)
In-Reply-To: <200812071355.49427.hpj@urpla.net>
Hans-Peter Jansen wrote:
> Am Mittwoch, 3. Dezember 2008 schrieb Justin Piszcz:
>
>> For read speed, it appears that there is some overhead (2x). With
>> software raid6 I used to get 1.0Gbyte/sec read speed, or at least
>> 800MiB/s across the entire array, now I only get 538MiB/s across the
>> entire array. However, write speed is improved. Before it was in the mid
>> 400s for RAID6 and peaking at 502MiB/s at the outer edge of the drives.
>> For the write speed now, its around 620-640MiB/s at the end of the array
>> and 580-620MiB/s going in further and 502MiB/s across the entire array. I
>> always heard all of the horror stories with 3ware cards, it turns out
>> they're not so bad after all.
>>
>
> Hustin, if you're after speed, AND sane support, you may consider trying
> Areca products. I'm biased, since 3ware fed me up completely, when it came
> to a single drive failure in a RAID 5 setup: the support only provides an
> ugly web interface: when posting my problem, they replied with:
>
>
Nice Areca advertisement.
Of course you can demonstrate how their tech support responded, to a
similar DISK failure, with a better suggestion, and more promptly?
Buried for biased and irrelevant.
--
With our best regards,
//Maurice W. Hilarius Telephone: 01-780-456-9771/
/Hard Data Ltd. FAX: 01-780-456-9772/
/11060 - 166 Avenue email:maurice@harddata.com/
/Edmonton, AB, Canada http://www.harddata.com//
/ T5X 1Y3/
/
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next prev parent reply other threads:[~2008-12-07 18:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-03 14:34 3ware 9650SE-16ML w/XFS & RAID6: first impressions Justin Piszcz
2008-12-07 12:55 ` Hans-Peter Jansen
2008-12-07 18:35 ` Maurice Hilarius [this message]
2008-12-08 8:37 ` Tom Walsh
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