Zvols
Zvols
Creating Zvols
Zvols are block storage devices, cannot be mounted and primarily used for iSCSI backing stores. The size and compression used can be set for each individual backing store.
The following steps will show the process of creating a zvol within clustered and non clustered pools.
Note
Zvols can only be created or edited on the node where the service is running.
-
To create a zvol navigate to
ZFS -> Zvols
and clickCREATE ZVOL
: -
Select the
Parent Pool
and enter aZvol Name
and set any options required:Available options:
OptionDescription Zvols size
Size of the zvol to create - can be specified in units of KB, MB, GB, TB and PB Compression
Enable compression or select an alternative compression type (lz4/zstd) - on - The current default compression algorithm will be used (does not select a fixed compression type; as new compression algorithms are added to ZFS and enabled on a pool, the default compression algorithm may change).
- off - No compression.
- lz4 - A high-performance compression and decompression algorithm, as well as a moderately higher compression ratio than the older lzjb (the original compression algorithm).
- zstd - Provides both high compression ratios and good performance and is preferable over lz4.
-
Click
SUBMIT
to create - the Zvol is now created in the pool.
Modifying Zvols
To modify an existing zvol, click the button to the right of the zvol:
Deleting Zvols
To delete a zvol, click the button to the right of the zvol and confirm
by clicking the REMOVE ZVOL
option.