2.2 KiB

Raw Blame History

Storage Performance Development Kit driver

Storage Performance Development Kit (SPDK) is a user space, polled-mode, asynchronous, lockless NVMe driver. It provides zero-copy, highly parallel access directly to an SSD from a user space application. SPDK provides NVMe-oF target that is capable of serving disks over the network or to other processes.

Preparation

SPDK NVMe-oF target installation

Follow instructions available on https://spdk.io/doc/nvmf.html to install and configure environment with SPDK NVMe-oF target application. Starting from Ussuri release SPDK release v19.10 or higher is required.

Storage pools configuration

SPDK Cinder driver requires storage pools to be configured upfront in SPDK NVMe-oF target application. SPDK driver uses Logical Volume Stores (LVS) as storage pools. Details on configuring LVS are available on https://spdk.io/doc/logical_volumes.html. After storage pools are configured remote access has to be enabled. Launch scripts/rpc_http_proxy.py script from SPDK directory to start an http server that will manage requests from volume driver.

Supported operations

Create, delete, attach, and detach volumes.
Create, list, and delete volume snapshots.
Create a volume from a snapshot.
Copy an image to a volume.
Copy a volume to an image.
Clone a volume.
Extend a volume.
Get volume statistics.

Configuration

Use the following options to configure for the SPDK NVMe-oF transport:

volume_driver = cinder.volume.drivers.spdk.SPDKDriver
target_protocol = nvmet_rdma          # SPDK driver supports only nvmet_rdma target protocol
target_helper = spdk-nvmeof           # SPDK volume driver requires SPDK NVMe-oF target driver
target_ip_address = 192.168.0.1       # NVMe-oF target IP address
target_port = 4260                    # NVMe-oF target port
target_prefix = nqn.2014-08.org.spdk  # NVMe-oF target nqn prefix

cinder.volume.targets.spdknvmf

2.2 KiB Raw Blame History