From: Thomas Fjellstrom <tfjellstrom@shaw.ca>
To: adfas asd <chimera_god@yahoo.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: Remote NAS
Date: Mon, 28 Sep 2009 08:15:47 -0600 [thread overview]
Message-ID: <200909280815.47537.tfjellstrom@shaw.ca> (raw)
In-Reply-To: <41943.20139.qm@web38801.mail.mud.yahoo.com>
On Mon September 28 2009, adfas asd wrote:
> I am puzzled by why write-mostly. Ostensibly Gb ethernet is supposed to
> nearly equal the data transfer rate of the controller cards, and be many
> times the speed of actual data transfer from the drives.
>
> So shouldn't a NAS have plenty of bandwidth to accommodate most any drive
> operations?
My GbE lan gets about 90MiB/s, my pcie sata card has shown upwards of
400MiB/s. I haven't done full tests on the sata card yet, but it clearly is
able to more than saturate a single GbE connection.
> I will be setting up a small high-perf drive for / (including database) so
> the only data on the array will be /home (including large videos).
>
> Seems like there is no need to specify write-mostly?
>
> --- On Sun, 9/27/09, Leslie Rhorer <lrhorer@satx.rr.com> wrote:
> > In his situation (assuming he doesn't
> > take my advice and separate
> > the remote system entirely), wouldn't he be better served
> > to create a RAIDn
> > array on both systems and then create a RAID1 from the
> > local and NAS array
> > with the write mostly option?
>
> --
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>
--
Thomas Fjellstrom
tfjellstrom@shaw.ca
next prev parent reply other threads:[~2009-09-28 14:15 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-22 19:38 Remote NAS adfas asd
2009-09-22 20:09 ` Robin Hill
2009-09-22 21:56 ` adfas asd
2009-09-23 7:57 ` Robin Hill
2009-09-23 9:13 ` Keld Jørn Simonsen
2009-09-23 14:59 ` adfas asd
2009-09-23 21:01 ` Keld Jørn Simonsen
2009-09-23 22:58 ` adfas asd
2009-09-23 14:52 ` adfas asd
2009-09-23 15:29 ` Robin Hill
2009-09-23 15:44 ` adfas asd
2009-09-23 16:10 ` Robin Hill
2009-09-27 20:19 ` Leslie Rhorer
2009-09-28 14:07 ` adfas asd
2009-09-28 14:15 ` Thomas Fjellstrom [this message]
2009-09-29 14:40 ` adfas asd
2009-09-29 9:25 ` Leslie Rhorer
2009-09-27 20:44 ` Leslie Rhorer
2009-09-27 22:00 ` Leslie Rhorer
2009-09-29 14:15 ` adfas asd
2009-09-30 15:36 ` Leslie Rhorer
[not found] <228497.14504.qm@web38801.mail.mud.yahoo.com>
2009-09-29 10:09 ` Leslie Rhorer
[not found] <20090923200257.GA19027@cthulhu.home.robinhill.me.uk>
2009-09-23 23:08 ` adfas asd
-- strict thread matches above, loose matches on Subject: below --
2009-09-16 16:21 adfas asd
2009-09-27 19:39 ` Leslie Rhorer
2009-09-27 20:09 ` Leslie Rhorer
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