Infortrend volume driver

The Infortrend volume driver is a Block Storage driver providing iSCSI and Fibre Channel support for Infortrend storages.

Supported operations

The Infortrend volume driver supports the following volume operations:

• Create, delete, attach, and detach volumes.
• Create and delete a snapshot.
• Create a volume from a snapshot.
• Copy an image to a volume.
• Copy a volume to an image.
• Clone a volume.
• Extend a volume
• Retype a volume.
• List, manage and unmanage a volume.
• List, manage and unmanage a snapshot.
• Migrate a volume with back-end assistance.
• Live migrate an instance with volumes hosted on an Infortrend backend.

System requirements

To use the Infortrend volume driver, the following settings are required:

Set up Infortrend storage

• Create logical volumes in advance.
• Host side setting Peripheral device type should be No Device Present (Type=0x7f).

Set up cinder-volume node

• Install Oracle Java 7 or later.
• Download the Infortrend storage CLI from the release page, and assign it to the default path /opt/bin/Infortrend/.

Driver configuration

On cinder-volume nodes, set the following in your /etc/cinder/cinder.conf, and use the following options to configure it:

Driver options

Description of Infortrend volume driver configuration options

Configuration option = Default value	Description
[DEFAULT]
infortrend_cli_max_retries = 5	(Integer) The maximum retry times if a command fails.
infortrend_cli_path = /opt/bin/Infortrend/raidcmd_ESDS10.jar	(String) The Infortrend CLI absolute path.
infortrend_cli_timeout = 60	(Integer) The timeout for CLI in seconds.
infortrend_cli_cache = False	(Boolean) The Infortrend CLI cache. Make sure the array is only managed by Openstack, and it is only used by one cinder-volume node. Otherwise, never enable it! The data might be asynchronous if there were any other operations.
infortrend_pools_name = None	(String) The Infortrend logical volumes name list. It is separated with comma.
infortrend_iqn_prefix = iqn.2002-10.com.infortrend	(String) Infortrend iqn prefix for iSCSI.
infortrend_slots_a_channels_id = None	(String) Infortrend raid channel ID list on Slot A for OpenStack usage. It is separated with comma.
infortrend_slots_b_channels_id = None	(String) Infortrend raid channel ID list on Slot A for OpenStack usage. It is separated with comma.
java_path = /usr/bin/java	(String) The Java absolute path.
san_ip = None	(String) The Infortrend storage ip for management.
san_password = None	(String) The Infortrend array password.

iSCSI configuration example

[DEFAULT]
default_volume_type = IFT-ISCSI
enabled_backends = IFT-ISCSI

[IFT-ISCSI]
volume_driver = cinder.volume.drivers.infortrend.infortrend_iscsi_cli.InfortrendCLIISCSIDriver
volume_backend_name = IFT-ISCSI
infortrend_pools_name = POOL-1,POOL-2
san_ip = MANAGEMENT_PORT_IP
infortrend_slots_a_channels_id = 0,1,2,3
infortrend_slots_b_channels_id = 0,1,2,3
san_password = RAID_PASSWORD

Fibre Channel configuration example

[DEFAULT]
default_volume_type = IFT-FC
enabled_backends = IFT-FC

[IFT-FC]
volume_driver = cinder.volume.drivers.infortrend.infortrend_fc_cli.InfortrendCLIFCDriver
volume_backend_name = IFT-FC
infortrend_pools_name = POOL-1,POOL-2,POOL-3
san_ip = MANAGEMENT_PORT_IP
infortrend_slots_a_channels_id = 4,5
san_password = RAID_PASSWORD

Multipath configuration

• Enable multipath for image transfer in /etc/cinder/cinder.conf.

  use_multipath_for_image_xfer = True

  Restart the cinder-volume service.

• Enable multipath for volume attach and detach in /etc/nova/nova.conf.

  [libvirt]
  ...
  volume_use_multipath = True
  ...

  Restart the nova-compute service.

Extra spec usage

• infortrend:provisioning - Defaults to full provisioning, the valid values are thin and full.

• infortrend:tiering - Defaults to use all tiering, the valid values are subsets of 0, 1, 2, 3.

  If multi-pools are configured in cinder.conf, it can be specified for each pool, separated by semicolon.

  For example:

  infortrend:provisioning: POOL-1:thin; POOL-2:full

  infortrend:tiering: POOL-1:all; POOL-2:0; POOL-3:0,1,3

For more details, see Infortrend documents.