Ivan Pchelintsev 517cb6448b Add Cinder driver for Dell EMC PowerStore

* Supported Protocols
 - FC
 - iSCSI

* Supported Features
 - Volume Create/Delete
 - Volume Attach/Detach
 - Snapshot Create/Delete
 - Create Volume from Snapshot
 - Get Volume Stats
 - Copy Image to Volume
 - Copy Volume to Image
 - Clone Volume
 - Extend Volume
 - Revert Volume to Snapshot

Implements: blueprint powerstore-cinder-driver
Change-Id: Icef5b38ba39eec761c1cfa70e2a66bc28ddf4cd6

2020-07-22 22:40:09 +03:00

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Dell EMC PowerStore driver

This section explains how to configure and connect the block storage nodes to an PowerStore storage cluster.

Supported operations

Create, delete, attach and detach volumes.
Create, 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.
Attach a volume to multiple servers simultaneously (multiattach).
Revert a volume to a snapshot.

Driver configuration

Add the following content into /etc/cinder/cinder.conf:

[DEFAULT]
enabled_backends = powerstore

[powerstore]
# PowerStore REST IP
san_ip = <San IP>
# PowerStore REST username and password
san_login = <San username>
san_password = <San Password>
# Storage protocol
storage_protocol = <Storage protocol> # FC or iSCSI
# Volume driver name
volume_driver = cinder.volume.drivers.dell_emc.powerstore.driver.PowerStoreDriver
# Backend name
volume_backend_name = <Backend name>
# PowerStore appliances
powerstore_appliances = <Appliances names> # Ex. Appliance-1,Appliance-2
# PowerStore allowed ports
powerstore_ports = <Allowed ports> # Ex. 58:cc:f0:98:49:22:07:02,58:cc:f0:98:49:23:07:02

Driver options

The driver supports the following configuration options:

cinder.volume.drivers.dell_emc.powerstore.driver

SSL support

To enable the SSL certificate verification, modify the following options in the cinder.conf file:

driver_ssl_cert_verify = True
driver_ssl_cert_path = <path to the CA>

By default, the SSL certificate validation is disabled.

If the driver_ssl_cert_path option is omitted, the system default CA will be used.

Thin provisioning and compression

The driver creates thin provisioned compressed volumes by default. Thick provisioning is not supported.

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