From: Bill Davidsen <davidsen@tmr.com>
To: Carlos Mennens <carloswill@gmail.com>
Cc: Mdadm <linux-raid@vger.kernel.org>
Subject: Re: RAID1 On 3 Drives
Date: Sat, 13 Mar 2010 18:50:14 -0500 [thread overview]
Message-ID: <4B9C24B6.7040507@tmr.com> (raw)
In-Reply-To: <d80f793f1003131518u2bfe77e9k52ef77e3d2c68360@mail.gmail.com>
Carlos Mennens wrote:
> I am glad I asked! Thanks for all the info. Now my question next is if
> I am creating a 3 disk raid with a 1 disk spare, do I need to use any
> special 'mdadm' parameters besides what u see below for /boot (Grub)?
>
> # mdadm --create /dev/md0 --level=1 --raid-devices=3 /dev/sda1
> /dev/sdb1 /dev/sdc1 --spare-devices=1 /dev/sdd1
>
> Anything else I should add to the above command for my /boot partition?
>
Having a spare on raid-1 is fairly pointless, it hurts performance and
buys you nothing. Having one more copy of the data built and ready
serves you better.
--
Bill Davidsen <davidsen@tmr.com>
"We can't solve today's problems by using the same thinking we
used in creating them." - Einstein
next prev parent reply other threads:[~2010-03-13 23:50 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-13 22:30 RAID1 On 3 Drives Joachim Otahal
2010-03-13 23:18 ` Carlos Mennens
2010-03-13 23:50 ` Bill Davidsen [this message]
2010-03-15 12:30 ` Carlos Mennens
2010-03-15 12:48 ` Majed B.
2010-03-15 14:47 ` Carlos Mennens
2010-03-15 16:05 ` Majed B.
2010-03-16 1:46 ` Keld Simonsen
2010-03-20 16:08 ` Bill Davidsen
-- strict thread matches above, loose matches on Subject: below --
2010-03-13 21:06 Carlos Mennens
2010-03-13 21:21 ` Majed B.
2010-03-13 21:24 ` Carlos Mennens
2010-03-14 21:09 ` Luca Berra
2010-03-13 21:45 ` Neil Brown
2010-03-13 21:26 ` Neil Brown
2010-03-13 21:31 ` Majed B.
2010-03-13 21:50 ` Neil Brown
2010-03-14 3:30 ` Majed B.
2010-03-14 1:22 ` thib
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