From: "JaniD++" <djani22@dynamicweb.hu>
To: Al Boldi <a1426z@gawab.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: RAID0 performance question
Date: Tue, 22 Nov 2005 02:14:31 +0100 [thread overview]
Message-ID: <00ce01c5ef02$2192f7a0$a700a8c0@dcccs> (raw)
In-Reply-To: 200512191416.10665.a1426z@gawab.com
----- Original Message -----
From: "Al Boldi" <a1426z@gawab.com>
To: "JaniD++" <djani22@dynamicweb.hu>
Cc: <linux-raid@vger.kernel.org>
Sent: Monday, December 19, 2005 12:16 PM
Subject: Re: RAID0 performance question
> JaniD++ wrote:
> > For me, the performance bottleneck is cleanly about RAID0 layer used
> > exactly as "concentrator" to join the 4x2TB to 1x8TB.
>
> Did you try running RAID0 over nbd directly and found it to be faster?
At this time i cannot test it, because the system is loaded, and the result
will fase.
Anyway i will probe this....
>
> IIRC, stacking raid modules does need a considerable amount of tuning, and
> even then it does not scale linearly.
>
> Maybe NeilBrown can help?
Maybe, but it looks like Neil is not interested. :-(
And the more probles is, i plan to modify the entire system structure, and
will not be spare drives to testing soon... :-/
Cheers,
Janos
next prev parent reply other threads:[~2005-11-22 1:14 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-18 19:34 mdadm 2.1: command line option parsing bug? Andreas Haumer
2005-11-21 23:21 ` Neil Brown
2005-11-22 11:21 ` Michael Tokarev
2005-11-24 5:15 ` Neil Brown
2005-11-22 15:41 ` Molle Bestefich
2005-11-24 5:25 ` Neil Brown
2005-11-24 7:31 ` Ross Vandegrift
2005-12-15 1:53 ` Molle Bestefich
2005-12-15 4:19 ` Neil Brown
2005-12-15 10:37 ` Molle Bestefich
2005-11-22 22:05 ` Andre Noll
2005-11-26 14:04 ` RAID0 performance question JaniD++
2005-11-26 15:56 ` Raz Ben-Jehuda(caro)
2005-11-26 16:08 ` JaniD++
2005-11-26 17:11 ` Lajber Zoltan
2005-11-26 17:34 ` JaniD++
2005-11-26 19:47 ` Lajber Zoltan
2005-11-26 23:27 ` Neil Brown
2005-11-26 23:37 ` JaniD++
2005-11-27 15:39 ` Al Boldi
2005-11-27 16:21 ` JaniD++
2005-11-27 17:40 ` Al Boldi
2005-11-27 19:02 ` JaniD++
2005-11-30 23:13 ` JaniD++
2005-12-02 19:53 ` Al Boldi
2005-12-18 0:13 ` JaniD++
2005-12-19 11:16 ` Al Boldi
2005-11-22 1:14 ` JaniD++ [this message]
2005-11-23 10:48 ` JaniD++
2005-12-21 1:40 ` Neil Brown
2005-11-22 1:56 ` JaniD++
2005-12-22 4:49 ` Neil Brown
2005-11-23 9:44 ` JaniD++
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