On Thu, Feb 19, 2015 at 12:06 AM, John R Pierce pierce@hogranch.com wrote:
On 2/18/2015 9:39 PM, Chris Murphy wrote:
You might be a candidate for LVM integrated raid. It uses the md kernel code on the backend, but it's all LVM tools to create, manage and monitor. The raid level is defined per LV, instead of all LV's in a VG inheriting the underlying raid. It supports all levels of raid including 5/6. ... ... ... ... ... btrfs ...
actually, I prefer zfs. I was just saying how I do it on CentOS, where zfs is not really an option.
It should be possible on CentOS 7, I know a couple people using ZoL in production on Fedora since circa Fedora 19. The ZoL implementation is not nearly as kernel version dependent as Btrfs is right now. But I think most anyone would say at the moment the implementation is much better on FreeBSD.
While ZFS is production stable, Btrfs comes with caveats. But already it requires far less resources than ZFS, can grow and shrink in ways ZFS can't, and I think snapshots are easier to understand, no parent-child type relationship.
.... but, is that lvm integrated raid stuff available in RHEL/CentOS 6 or 7 yet ?
Yes since CentOS 6.3.