Allow absolute path to device in `zenfs` utility

westerndigitalcorporation / zenfs

ZenFS is a storage backend for RocksDB that enables support for ZNS SSDs and SMR HDDs.

GNU General Public License v2.0

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Open metaspace opened 1 year ago

metaspace commented 1 year ago

Paths to devices in ZenFS have to be given without leading /dev/ prefix. This is a source of confusion for new users. It is also not documented.

We should allow zenfs utility and RocksDB URI to use absolute paths for devices.

damien-lemoal commented 1 year ago

Yes ! That will also allow using /dev/disk/by-id/xxx as these are stable device names that do not depend on the scan order on boot.

metaspace commented 1 year ago

We might also have issues with using /dev/mapper/... with the current implementation.