LVM and NSS in OES11

Question

I am building out a replacement server which will be the target for a server migration. The server will host an NSS volume. In the past I have always created an array-level logical drive for my NSS partiton/volume. Rather than doing this, I would rather just have one logical drive and partition the space using LVM (except for /boot and swap). Once I create the LVM and add /, /home, /var, /tmp to it, I will have a lot of extra space which I want to use for the NSS volume.
So, is it possible to use the unused space in LVM for NSS? Or should I stick which a separate logical partition for NSS?
Chris

Answer 1

Originally Posted by cmosentine
I am building out a replacement server which will be the target for a server migration. The server will host an NSS volume. In the past I have always created an array-level logical drive for my NSS partiton/volume. Rather than doing this, I would rather just have one logical drive and partition the space using LVM (except for /boot and swap). Once I create the LVM and add /, /home, /var, /tmp to it, I will have a lot of extra space which I want to use for the NSS volume.
So, is it possible to use the unused space in LVM for NSS? Or should I stick which a separate logical partition for NSS?
Chris
With OES11 it's possible and quite easy to use the left free space on the system disk for NSS.
It also does not have the potential for havoc as was the case with OES2 (as with OES2 this was also possible, it just meant using EVMS on the system disk device, which could lead to issues booting after patching of updating due to needed missing kernel modules for EVMS within initrd).
Still, even with it being possible and supported to do so, if you can house the OS bits and data (be it on NSS and other filesystems) on different disk devices.. that would always be what I'd opt for. It makes certain maintenance/recovery and update tasks easier/more flexible/reliable as OS and data partitions are not within one and the same "container".
Cheers,
Willem