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From: Roberto Spadim <roberto@spadim.com.br>
To: Linux-RAID <linux-raid@vger.kernel.org>
Subject: raid1 mirror optimizations
Date: Tue, 25 Jan 2011 16:56:04 -0200	[thread overview]
Message-ID: <AANLkTimUbWcHi8w6UzxKjkavpOihV7V5Nm58mV7HA0AE@mail.gmail.com> (raw)

hi guys... i have a damaged disk...
i´m using raid1
the computer crashed with the floor :P hihiih sorry, but the disks are
damaged at the same position
check: http://www.spadim.com.br/hd%20agra.zip
the problem: since raid1 (mirror) is done with real mirror, the disk
position are the same...
if i was using a mirror but on disk 1 i write from beggining to end,
and disk 2 from end to beggining , i don´t crash the disk at the same
position, for disk 1 i crash it some bytes, for disk 2 i crash some
others bytes, since beggining is a small cilinder and end a bigger, i
could loose less information than mirror
could we implement a 'inverted' mirror? just for hard disks (for ssd
it´s a small loss of cpu/memory)
thanks

-- 
Roberto Spadim
Spadim Technology / SPAEmpresarial
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             reply	other threads:[~2011-01-25 18:56 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-25 18:56 Roberto Spadim [this message]
2011-01-25 20:19 ` raid1 mirror optimizations Oliver Brakmann
2011-01-26 15:39   ` Roberto Spadim
2011-01-26 16:37     ` Oliver Brakmann
2011-01-26 21:08       ` David Brown
2011-01-26  9:49 ` David Brown
2011-01-26 14:18   ` Roberto Spadim

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