From: Lutz Vieweg <lvml@5t9.de>
To: linux-raid@vger.kernel.org
Subject: Re: Software RAID and TRIM
Date: Mon, 18 Jul 2011 00:00:40 +0200 [thread overview]
Message-ID: <ivvltm$fn9$1@dough.gmane.org> (raw)
In-Reply-To: <alpine.OSX.2.00.1106291133060.257@trogdor.csi.cam.ac.uk>
Tom De Mulder wrote:
> Maybe I should have specified--my particular aim is to try and use
> (fairly high-end) consumer SSDs for "enterprise" server applications
That's exactly what we do.
After all, "RAID" is still the acronym for "Redundant Array of
_Inexpensive_ Disks", no matter how many times big-$$$ will try to tell
you otherwise.
And a software RAID built from some cheap consumer SSDs easily
outperforms those overpriced "enterprise class" SSD devices they try to
sell you.
> Most hardware RAID controllers that I know
> of don't pass on the TRIM command
Not only that, they also suck regarding adding lots of latency to the
SSD communication.
There simply is no reason anymore to use hardware RAID at all.
Regards,
Lutz Vieweg
next prev parent reply other threads:[~2011-07-17 22:00 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-28 15:31 Software RAID and TRIM Tom De Mulder
2011-06-28 16:11 ` Mathias Burén
2011-06-29 10:32 ` Tom De Mulder
2011-06-29 10:45 ` NeilBrown
2011-06-29 11:10 ` Tom De Mulder
2011-06-29 11:48 ` Scott E. Armitage
2011-06-29 12:46 ` Roberto Spadim
2011-06-29 12:46 ` David Brown
2011-06-30 0:28 ` NeilBrown
2011-06-30 7:50 ` David Brown
2011-06-29 13:39 ` Namhyung Kim
2011-06-30 0:27 ` NeilBrown
2011-07-17 22:11 ` Lutz Vieweg
2011-07-17 21:57 ` Lutz Vieweg
2011-06-29 10:33 ` Tom De Mulder
2011-06-29 12:42 ` David Brown
2011-06-29 12:55 ` Tom De Mulder
2011-06-29 13:02 ` Roberto Spadim
2011-06-29 13:10 ` David Brown
2011-06-30 5:51 ` Mikael Abrahamsson
2011-07-04 9:13 ` Tom De Mulder
2011-07-04 16:26 ` Werner Fischer
2011-07-17 22:31 ` Lutz Vieweg
2011-07-17 22:16 ` Lutz Vieweg
2011-07-17 22:00 ` Lutz Vieweg [this message]
2011-06-28 16:17 ` Johannes Truschnigg
2011-06-28 16:40 ` David Brown
2011-07-17 21:52 ` Lutz Vieweg
2011-07-18 5:14 ` Mikael Abrahamsson
2011-07-18 10:35 ` David Brown
2011-07-18 10:48 ` Tom De Mulder
2011-07-18 18:09 ` Lutz Vieweg
2011-07-18 20:18 ` David Brown
2011-07-19 9:29 ` Lutz Vieweg
2011-07-19 10:22 ` David Brown
2011-07-19 13:41 ` Lutz Vieweg
2011-07-19 15:06 ` David Brown
2011-07-20 10:39 ` Lutz Vieweg
2011-07-19 14:19 ` Tom De Mulder
2011-07-20 7:42 ` David Brown
2011-07-20 12:20 ` Lutz Vieweg
2011-07-20 12:13 ` Werner Fischer
2011-07-20 12:25 ` Lutz Vieweg
2011-07-18 10:53 ` Tom De Mulder
2011-07-18 12:13 ` Werner Fischer
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