I am looking to create a group of thin provisioned LVs using LVM.
Is it possible to create a volume group in which every logical volume created is by default thin provisioned, or perhaps there is another way of doing this?
This would be for RHEL6.
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LVM Thin Provisioning is currently a proposed feature of RHEL 7, it is not available by default in RHEL 6.
Edit: I was wrong, LVM thin provisioning was officially added in RHEL 6.4
From the release announcement:
After a long break, we've issued a new LVM2 release, 2.02.89.
This release includes experimental support for thinly-provisioned logical volumes using the new device-mapper thin provisioning target in kernel 3.2.
Thin provisioning for LVMs will be introduced in RHEL 7. If everything goes well...
EDIT: As stated above, RHEL 6.4 introduced experimental support for thin provisioned LVMs. I personally would stay as far as possible on production systems from experimental stuff.