Hi All,
I have some general questions about setting up partitions. I have been struggling to get an array to mount since I upgraded the drives and exceeded a 2 gig partition so now the logical drive won't mount after the install.
That being said I have a few questions.
Does anyone have any experience or advice for setting up large arrays on 5.2 x86_64? My understanding is I need to setup a GPT partition but I am not having any luck getting a good configuration during the install process. Should I just not try during the install and use parted afterwards or is there a better way to go about this?
Also, during testing I just let it do a default configuration on the drives and noticed that it setup a 100mgb partition with the boot map on it and the rest as a LVM volume. Is this a preferred way to do it these days?
Thanks for any advice/help
Brian
Brian Marshall wrote:
Hi All,
I have some general questions about setting up partitions. I have been struggling to get an array to mount since I upgraded the drives and exceeded a 2 gig partition so now the logical drive won't mount after the install.
Get a new controller? 2gig is pretty small these days!
nate
The controller is 8 channel SATA 300. That's not the problem. The problem is getting the OS to mount a 4TB array after the initial install of the OS. We had a 1.5 TB on there for a few years and never had this problem with arrays under 2 TB.
The os installer can create a partition and format during the install, but once it's done and reboots it can't mount the device.
Brian Marshall wrote:
Hi All,
I have some general questions about setting up partitions. I have been struggling to get an array to mount since I upgraded the drives and exceeded a 2 gig partition so now the logical drive won't mount after the install.
Get a new controller? 2gig is pretty small these days!
nate
CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Brian Marshall wrote:
The controller is 8 channel SATA 300. That's not the problem. The problem is getting the OS to mount a 4TB array after the initial install of the OS. We had a 1.5 TB on there for a few years and never had this problem with arrays under 2 TB.
The os installer can create a partition and format during the install, but once it's done and reboots it can't mount the device.
What I'd do is create multiple smaller logical volumes on the raid controller(smaller than 2TB) and export them to the OS that way, instead of making one big one. Most good raid controllers allow you to create logical volumes out of a larger physical volume.
nate
On Wed, 20 Aug 2008 at 5:19pm, Brian Marshall wrote
The controller is 8 channel SATA 300. That's not the problem. The problem is getting the OS to mount a 4TB array after the initial install of the OS. We had a 1.5 TB on there for a few years and never had this problem with arrays under 2 TB.
Your original post said 2GB, not TB.
Are you trying to boot from this device? Because you can't. Search the list history for multiple posts about dealing with >2TB drives. The highlights are:
a) You can't boot from it b) You must use a gpt disklabel c) You must use parted to partition it
on 8-20-2008 2:57 PM Brian Marshall spake the following:
Hi All,
I have some general questions about setting up partitions. I have been struggling to get an array to mount since I upgraded the drives and exceeded a 2 gig partition so now the logical drive won't mount after the install.
That being said I have a few questions.
Does anyone have any experience or advice for setting up large arrays on 5.2 x86_64? My understanding is I need to setup a GPT partition but I am not having any luck getting a good configuration during the install process. Should I just not try during the install and use parted afterwards or is there a better way to go about this?
Also, during testing I just let it do a default configuration on the drives and noticed that it setup a 100mgb partition with the boot map on it and the rest as a LVM volume. Is this a preferred way to do it these days?
It is the default way, but there are arguments both ways for it being the preferred way.