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From: Luca Berra <bluca@comedia.it>
To: linux-raid@vger.kernel.org
Subject: Re: RAID 5 questions
Date: Sun, 1 Aug 2004 11:33:50 +0200	[thread overview]
Message-ID: <20040801093349.GB6768@percy.comedia.it> (raw)
In-Reply-To: <1091325475.2374.11.camel@localhost>

On Sun, Aug 01, 2004 at 11:27:56AM +0930, Ninti Systems wrote:
>Q1: Is it true that Linux can't/shouldn't boot off a RAID 5 array?
it cannot no boot loader can load the kernel from a striped (or raid
3/4/5/6) device
create a small raid 1 array spanning the 4 disks and use it for /boot

>Q2: The four disks have identical manufacturer, model and size, but two
>are brand new while two have had NTFS filesystems on them. Accordingly,
>if I run hdparm -g on them, two disks have these specs:
>
>geometry = 2498/255/63, sectors = 40132503, start = 0
...
>geometry = 39813/16/63, sectors = 40132503, start = 0
>
>Is this an issue with software RAID? 
no, nevertheless if you wipe the partition table on the to 'used' disks
linux will see them just like the 'new' ones.

-- 
Luca Berra -- bluca@comedia.it
        Communication Media & Services S.r.l.
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  parent reply	other threads:[~2004-08-01  9:33 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-08-01  1:57 RAID 5 questions Ninti Systems
2004-08-01  3:08 ` Daniel Pittman
2004-08-01  3:31 ` Jim Paris
2004-08-01  3:50   ` Alvin Oga
2004-08-02  6:01   ` Jarmo Järvenpää
2004-08-02  6:08     ` Luca Berra
2004-08-02  6:55       ` Jarmo Järvenpää
2004-08-02  6:09     ` Jim Paris
2004-08-02  7:27       ` Jarmo Järvenpää
2004-08-03 20:23         ` Frank van Maarseveen
2004-08-04  8:52           ` Tim Small
2004-08-01  9:33 ` Luca Berra [this message]
2004-08-01 10:24 ` Frank van Maarseveen
2004-08-03  5:19   ` misty-
2004-08-06  0:49   ` H. Peter Anvin
  -- strict thread matches above, loose matches on Subject: below --
2004-06-03 14:29 Raid " David Greaves
2004-06-03 15:13 ` Guy
2004-06-03 15:50 ` David Greaves
2004-06-03 16:43   ` Guy

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