From: David Brown <david.brown@hesbynett.no>
To: linux-raid@vger.kernel.org
Subject: Re: raid over ethernet
Date: Sat, 29 Jan 2011 19:34:12 +0100 [thread overview]
Message-ID: <ii1mj5$mah$1@dough.gmane.org> (raw)
In-Reply-To: <alpine.DEB.1.10.1101290741510.13151@uplift.swm.pp.se>
On 29/01/11 07:42, Mikael Abrahamsson wrote:
> On Fri, 28 Jan 2011, Roberto Spadim wrote:
>
>> hi guys, i was thinking about raid over ethernet... there's a solution
>> to make a syncronous replica of my filesystem? no problem if my
>> primary server get down, i can mout my replica fsck it and continue
>> with available data
>> i was reading about nbd, anyone have more ideas?
>
> Look into AoE (ATA over Ethernet).
>
I think AoE is limited to fairly direct connections - it doesn't use IP,
and can't be routed (at least not easily - I'm sure it is possible if
you try hard enough). The alternative is iSCSI, which does use IP and
can therefore be routed and passed around over networks. AoE is
therefore slightly more efficient, and iSCSI more flexible.
If you are looking at making a raid1 with an iSCSI or AoE target as one
of the disks, consider using a write-intent bitmap and the
--write-mostly and --write-behind flags.
prev parent reply other threads:[~2011-01-29 18:34 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-29 1:58 raid over ethernet Roberto Spadim
2011-01-29 5:41 ` Jérôme Poulin
2011-01-29 6:42 ` Roberto Spadim
2011-01-29 13:29 ` Alexander Schreiber
2011-01-29 6:42 ` Mikael Abrahamsson
2011-01-29 6:44 ` Roberto Spadim
2011-01-29 6:48 ` Roberto Spadim
[not found] ` <AANLkTikdahgMoJjGr2otTS70LSM77GNpW_vAkZf15Kph@mail.gmail.com>
2011-01-29 11:47 ` Roberto Spadim
2011-01-29 13:34 ` Alexander Schreiber
[not found] ` <AANLkTi=6ridRPnHpfdOC=f2_ESndSARmQRkvT_shYO3s@mail.gmail.com>
2011-01-29 14:25 ` Denis
2011-01-29 21:08 ` Alexander Schreiber
2011-01-29 21:54 ` John Robinson
2011-01-29 23:04 ` Stan Hoeppner
2011-01-29 23:06 ` Miles Fidelman
2011-01-30 1:43 ` Alexander Schreiber
2011-01-31 8:42 ` Denis
2011-01-31 13:03 ` Alexander Schreiber
2011-01-31 14:45 ` Roberto Spadim
2011-01-31 16:15 ` Alexander Schreiber
2011-01-31 17:37 ` Roberto Spadim
2011-01-29 15:30 ` Spelic
2011-01-29 18:34 ` David Brown [this message]
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