Posted by peter |

One of our customers was setting up box for MySQL LVM backups. The box had 2 RAID volumes (internal drives and enclosure) with database being stored on enclosure drives and internal drives used pretty much for OS and logs (database grew too large and so was moved to enclosure completely).

As database was large and active I thought it would make sense to have LVM undo space located on the internal drives so LVM and backup has less backup on the running system.

As the system was configured creating snapshot volume with 100G of undo space failed complaining there is not enough space available on the volume….
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