Basic snapshot questions

[Gr-R]

each snapshot should be about 18% of the volume to take a snapshot of. This will come from unallocated space in the volume group (same as creating another LV)

[johnthrow]

Thanks! So is the free space reserved option basically just to assure that the total LV don't exceed that amount and that the required amount of free space remains available for snapshots?

[Gr-R]

Thanks! So is the free space reserved option basically just to assure that the total LV don't exceed that amount and that the required amount of free space remains available for snapshots?

No, space is not automatically reserved for snapshots. Creating a snapshot uses volume group space the same as a NAS volume or iSCSI volume. You define it when it is created. The 'reserved for snapshot value' will change as snapshots are created or removed from the system.

[johnthrow]

I understand now. Thanks for your help.