- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- What is the maximum size of thin pool metadata?
- The supported value for the thin pool's metadata logical volume is in the range between
2MiB to approximately 15.88GiBas per BZ#1909699.
- It can be hard to predict the amount of metadata space that will be needed, so it is recommended to start with a size of 1GiB which should be enough for all practical purposes. A thin pool metadata LV can later be manually or automatically extended if needed.
From man page of
Size of pool metadata LV The amount of thin metadata depends on how many blocks are shared between thin LVs (i.e. through snapshots). A thin pool with many snapshots may need a larger metadata LV. Thin pool metadata LV sizes can be from 2MiB to approximately 16GiB.
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