Provisioning a Logical Volume

A logical volume (LV) in simplyblock can be provisioned using the sbcli-pre command line interface. This allows administrators to create virtual NVMe block devices backed by simplyblock’s distributed storage, enabling high-performance and fault-tolerant storage for workloads.

Prerequisites

• A running simplyblock cluster with healthy management and storage nodes.
• sbcli-pre installed and configured with access to the simplyblock management API.

Provisioning a New Logical Volume

To create a new logical volume:

sbcli-pre lvol add \
  --max-rw-iops <IOPS> \
  --max-r-mbytes <THROUGHPUT> \
  --max-w-mbytes <THROUGHPUT> \
  <VOLUME_NAME> \
  <VOLUME_SIZE> \
  <POOL_NAME>

Available Parameters

Parameter	Description	Default
--snapshot, -s	Enables snapshot capability on the logical volume.	false
--max-size	Maximum size of the logical volume.	0
--ha-type	High availability mode of the logical volume.	ha
--encrypt	Enables in inline encryption on the logical volume.	false
--crypto-key1 CRYPTO_KEY1	The hex value of the first encryption key.
--crypto-key2 CRYPTO_KEY2	The hex value of the second encryption key.
--max-rw-iops MAX_RW_IOPS	Maximum IO operations per second.	0
--max-rw-mbytes MAX_RW_MBYTES	Maximum read/write throughput.	0
--max-r-mbytes MAX_R_MBYTES	Maximum read throughout.	0
--max-w-mbytes MAX_W_MBYTES	Maximum write throughput.	0

Verification

After creation, the Logical Volume can be listed and verified:

sbcli-pre volume list

Details of the volume can be retrieved using:

sbcli-pre lvol get <VOLUME_UUID>