Hi,
I asked this question back in march but received no answers, so here it
goes again. Is it safe to replace raid1 with raid10 where the amount of
disks is equal to the amount of far/near/offset copies? I understand it
has the downside of not being a bit-by-bit mirror of a plain filesystem.
Are
Peter Rabbitson wrote:
Hi,
I asked this question back in march but received no answers, so here it
goes again. Is it safe to replace raid1 with raid10 where the amount of
disks is equal to the amount of far/near/offset copies? I understand it
has the downside of not being a bit-by-bit mirror of
I am trying to set up raid 10 and so far with no luck. I have 4 drives,
and Anaconda will not let me do raid 10. mdadm doesn't have the raid 10
personality loaded. When I create the array manually like so:
2 drives in /dev/md11 as raid1
2 drives in /dev/md12 as raid1
md11 and md12 in
No LVM over the two RAID 1's is more like RAID 1c which is just a
concatenation of RAID 1's. You don't get the striping that you get in
RAID 10.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ruslan Sivak
Sent: Friday, May 04, 2007 11:22 AM
To:
[EMAIL PROTECTED] wrote:
No LVM over the two RAID 1's is more like RAID 1c which is just a
concatenation of RAID 1's. You don't get the striping that you get in
RAID 10.
That's what I guessed. Can anyone let me know if it's possible to set
up a real md raid10? Do I need to custom compile
cat /proc/mdstat
is the raid10 personality installed?
On Fri, 4 May 2007, Ruslan Sivak wrote:
[EMAIL PROTECTED] wrote:
No LVM over the two RAID 1's is more like RAID 1c which is just a
concatenation of RAID 1's. You don't get the striping that you get in
RAID 10.
That's what I guessed.
Justin Piszcz wrote:
cat /proc/mdstat
is the raid10 personality installed?
No, it's not. How would I go about installing it?
Personalities: [raid0] [raid1] [raid6] [raid5] [raid4]
Russ
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Compile into the kernel, boot new kernel then create your RAID 10 volume
with mdadm :)
On Fri, 4 May 2007, Ruslan Sivak wrote:
Justin Piszcz wrote:
cat /proc/mdstat
is the raid10 personality installed?
No, it's not. How would I go about installing it?
Personalities: [raid0] [raid1]
Justin Piszcz wrote:
Compile into the kernel, boot new kernel then create your RAID 10
volume with mdadm :)
So a custom kernel is needed? Is there a way to do a kickstart install
with the new kernel? Or better yet, put it on the install cd?
Russ
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Unsure for CentOS, I use Debian and always compile my own kernel.
Justin.
On Fri, 4 May 2007, Ruslan Sivak wrote:
Justin Piszcz wrote:
Compile into the kernel, boot new kernel then create your RAID 10 volume
with mdadm :)
So a custom kernel is needed? Is there a way to do a kickstart
Ruslan Sivak wrote:
So a custom kernel is needed? Is there a way to do a kickstart install
with the new kernel? Or better yet, put it on the install cd?
have you tried:
modprobe raid10
?
David
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David Greaves wrote:
Ruslan Sivak wrote:
So a custom kernel is needed? Is there a way to do a kickstart install
with the new kernel? Or better yet, put it on the install cd?
have you tried:
modprobe raid10
?
David
Yes, no such luck.
Russ
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To unsubscribe from this list:
} -Original Message-
} From: [EMAIL PROTECTED] [mailto:linux-raid-
} [EMAIL PROTECTED] On Behalf Of Ruslan Sivak
} Sent: Friday, May 04, 2007 12:22 PM
} To: linux-raid@vger.kernel.org
} Subject: raid10 on centos 5
}
} I am trying to set up raid 10 and so far with no luck. I have 4
} -Original Message-
} From: [EMAIL PROTECTED] [mailto:linux-raid-
} [EMAIL PROTECTED] On Behalf Of Guy Watkins
} Sent: Saturday, April 28, 2007 8:52 PM
} To: linux-raid@vger.kernel.org
} Subject: RAID6 question
}
} I read in processor.com that Adaptec has a RAID 6/60 that is patented.
}
Eli Stair wrote:
You shouldn't need to build a new kernel, just extract the SRPM for
the initial install (CentOS 5, no updated kernels), use the config for
the appropriate kernel (SMP, UP, i386/x86_64), enable the raid10
module and do a 'make modules'. You may need to do a minor amount of
You shouldn't need to build a new kernel, just extract the SRPM for the initial
install (CentOS 5, no updated kernels), use the config for the appropriate kernel
(SMP, UP, i386/x86_64), enable the raid10 module and do a 'make modules'. You may
need to do a minor amount of tweaking in the
} -Original Message-
} From: Ruslan Sivak [mailto:[EMAIL PROTECTED]
} Sent: Friday, May 04, 2007 7:22 PM
} To: Guy Watkins
} Cc: linux-raid@vger.kernel.org
} Subject: Re: raid10 on centos 5
}
} Guy Watkins wrote:
} } -Original Message-
} } From: [EMAIL PROTECTED]
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