RE: [CentOS] preferred software RAID 10?

2008-07-28 Thread Ross S. W. Walker
Rudi Ahlers wrote: Ross S. W. Walker wrote: Rudi Ahlers wrote: Ross S. W. Walker wrote: Rudi Ahlers wrote: Hi all I'm looking at setting up software RAID 10, using CentOS 5.1 x64 - what is the best way todo this? I'm reading some sources on the internet, and get a lot

RE: [CentOS] preferred software RAID 10?

2008-07-28 Thread Ross S. W. Walker
Rudi Ahlers wrote: Ross S. W. Walker wrote: Kai Schaetzl wrote: Rudi Ahlers wrote on Thu, 17 Jul 2008 23:10:48 +0200: /boot shouldn't be mirrored, as the BIOS won't know how to boot it. leave /dev/sdb1 the same size as /dev/sda1 and call it /boot2 and try to remember to copy

Re: [CentOS] preferred software RAID 10?

2008-07-26 Thread Rudi Ahlers
Ross S. W. Walker wrote: Rudi Ahlers wrote: John R Pierce wrote: Rudi Ahlers wrote: And then, how do I setup the partitioning? Do I setup /boot on a separate RAID partition? If so, what happens if I want to replace the 1st 2 HDD's with bigger ones? each partition is

Re: [CentOS] preferred software RAID 10?

2008-07-26 Thread Rudi Ahlers
Ross S. W. Walker wrote: Rudi Ahlers wrote: Ross S. W. Walker wrote: Rudi Ahlers wrote: Hi all I'm looking at setting up software RAID 10, using CentOS 5.1 x64 - what is the best way todo this? I'm reading some sources on the internet, and get a lot of different

Re: [CentOS] preferred software RAID 10?

2008-07-26 Thread Rudi Ahlers
Ross S. W. Walker wrote: Kai Schaetzl wrote: Rudi Ahlers wrote on Thu, 17 Jul 2008 23:10:48 +0200: /boot shouldn't be mirrored, as the BIOS won't know how to boot it. leave /dev/sdb1 the same size as /dev/sda1 and call it /boot2 and try to remember to copy /boot to /boot2 each time

Re: [CentOS] preferred software RAID 10?

2008-07-26 Thread Kai Schaetzl
Rudi Ahlers wrote on Sat, 26 Jul 2008 12:19:14 +0200: I've never used labels before CentOS uses labels in grub.conf and fstab by default if you do a standard installation (no mdraid devices), I wasn't aware that you can use labels in connection with md devices. I'd be interested in that as

Re: [CentOS] preferred software RAID 10?

2008-07-18 Thread Linux
On Fri, Jul 18, 2008 at 4:15 AM, David Mackintosh [EMAIL PROTECTED] wrote: To get back to the OP: I've done a RAID-10 under CentOS, and the problem I encountered was that the kernel wasn't smart enough to assemble the RAID without a properly populated /etc/mdadm.conf file. Well, I have many

Re: [CentOS] preferred software RAID 10?

2008-07-17 Thread Rudi Ahlers
John R Pierce wrote: Rudi Ahlers wrote: And then, how do I setup the partitioning? Do I setup /boot on a separate RAID partition? If so, what happens if I want to replace the 1st 2 HDD's with bigger ones? each partition is raided seperately with mdadm you could make the whole thing one

Re: [CentOS] preferred software RAID 10?

2008-07-17 Thread Kai Schaetzl
Rudi Ahlers wrote on Thu, 17 Jul 2008 23:10:48 +0200: /boot shouldn't be mirrored, as the BIOS won't know how to boot it. leave /dev/sdb1 the same size as /dev/sda1 and call it /boot2 and try to remember to copy /boot to /boot2 each time you update the kernel. I understand this, but how

RE: [CentOS] preferred software RAID 10?

2008-07-17 Thread Ross S. W. Walker
Rudi Ahlers wrote: John R Pierce wrote: Rudi Ahlers wrote: And then, how do I setup the partitioning? Do I setup /boot on a separate RAID partition? If so, what happens if I want to replace the 1st 2 HDD's with bigger ones? each partition is raided seperately with mdadm you

RE: [CentOS] preferred software RAID 10?

2008-07-17 Thread Ross S. W. Walker
Kai Schaetzl wrote: Rudi Ahlers wrote on Thu, 17 Jul 2008 23:10:48 +0200: /boot shouldn't be mirrored, as the BIOS won't know how to boot it. leave /dev/sdb1 the same size as /dev/sda1 and call it /boot2 and try to remember to copy /boot to /boot2 each time you update the kernel. I

Re: [CentOS] preferred software RAID 10?

2008-07-17 Thread Rudi Ahlers
Ross S. W. Walker wrote: Rudi Ahlers wrote: John R Pierce wrote: Rudi Ahlers wrote: And then, how do I setup the partitioning? Do I setup /boot on a separate RAID partition? If so, what happens if I want to replace the 1st 2 HDD's with bigger ones? each partition is

RE: [CentOS] preferred software RAID 10?

2008-07-17 Thread Ross S. W. Walker
Rudi Ahlers wrote: Ross S. W. Walker wrote: Rudi Ahlers wrote: John R Pierce wrote: Rudi Ahlers wrote: And then, how do I setup the partitioning? Do I setup /boot on a separate RAID partition? If so, what happens if I want to replace the 1st 2 HDD's with bigger

Re: [CentOS] preferred software RAID 10?

2008-07-17 Thread David Mackintosh
On Fri, Jul 18, 2008 at 12:31:19AM +0200, Kai Schaetzl wrote: Rudi Ahlers wrote on Thu, 17 Jul 2008 23:10:48 +0200: /boot shouldn't be mirrored, as the BIOS won't know how to boot it. leave /dev/sdb1 the same size as /dev/sda1 and call it /boot2 and try to remember to copy /boot to

RE: [CentOS] preferred software RAID 10?

2008-06-25 Thread Ross S. W. Walker
Rudi Ahlers wrote: Hi all I'm looking at setting up software RAID 10, using CentOS 5.1 x64 - what is the best way todo this? I'm reading some sources on the internet, and get a lot of different suggestions 1 suggestion says to boot up with a Live CD like Knoppix or SystemRescueCD,

Re: [CentOS] preferred software RAID 10?

2008-06-25 Thread Rudi Ahlers
Ross S. W. Walker wrote: Rudi Ahlers wrote: Hi all I'm looking at setting up software RAID 10, using CentOS 5.1 x64 - what is the best way todo this? I'm reading some sources on the internet, and get a lot of different suggestions 1 suggestion says to boot up with a Live CD like

Re: [CentOS] preferred software RAID 10?

2008-06-25 Thread John R Pierce
Rudi Ahlers wrote: And then, how do I setup the partitioning? Do I setup /boot on a separate RAID partition? If so, what happens if I want to replace the 1st 2 HDD's with bigger ones? each partition is raided seperately with mdadm you could make the whole thing one LVM partition thats

RE: [CentOS] preferred software RAID 10?

2008-06-25 Thread Joseph L. Casale
/boot shouldn't be mirrored, as the BIOS won't know how to boot it. Not true for all mobo's. Regardless, why not have a copy safe somewhere easier to manage then the following suggestion IMHO. Let the computer worry about remembering to copy it. leave /dev/sdb1 the same size as /dev/sda1 and

Re: [CentOS] preferred software RAID 10?

2008-06-25 Thread Florin Andrei
John R Pierce wrote: /boot shouldn't be mirrored, as the BIOS won't know how to boot it. Wait. I thought mirror RAID is the same on-disk format like a plain partition, so therefore a mirrored /boot will always boot. At least, it always did for me. -- Florin Andrei http://florin.myip.org/

RE: [CentOS] preferred software RAID 10?

2008-06-25 Thread Ross S. W. Walker
Rudi Ahlers wrote: Ross S. W. Walker wrote: Rudi Ahlers wrote: Hi all I'm looking at setting up software RAID 10, using CentOS 5.1 x64 - what is the best way todo this? I'm reading some sources on the internet, and get a lot of different suggestions 1 suggestion says

RE: [CentOS] preferred software RAID 10?

2008-06-25 Thread Ross S. W. Walker
Florin Andrei wrote: John R Pierce wrote: /boot shouldn't be mirrored, as the BIOS won't know how to boot it. Wait. I thought mirror RAID is the same on-disk format like a plain partition, so therefore a mirrored /boot will always boot. At least, it always did for me. Yes, default