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 Enable IBM FlashSystem iSCSI driver

Set the volume driver to the FlashSystem driver by setting the volume_driver option in configuration file cinder.conf as follows:

volume_driver = cinder.volume.drivers.ibm.flashsystem_iscsi.FlashSystemISCSIDriver

To enable IBM FlashSystem iSCSI driver, configure the following options in configuration file cinder.conf:

Table 2.26. List of configuration flags for IBM FlashSystem iSCSI driver
Flag name Type Default Description

san_ip

Required

Management IP or host name

san_ssh_port

Optional

22

Management port

san_login

Required

Management login user name

san_password

Required

Management login password

flashsystem_connection_protocol

Required

Connection protocol should be set to iSCSI

flashsystem_multihost_enabled

Optional

True

Enable mapping vdisks to multiple hosts [a]

iscsi_ip_address

Required

Set to one of the iSCSI IP addresses obtained by FlashSystem GUI or CLI [b]

flashsystem_iscsi_portid

Required

Set to the id of the iscsi_ip_address obtained by FlashSystem GUI or CLI [c]

[a] This option allows the driver to map a vdisk to more than one host at a time. This scenario occurs during migration of a virtual machine with an attached volume; the volume is simultaneously mapped to both the source and destination compute hosts. If your deployment does not require attaching vdisks to multiple hosts, setting this flag to False will provide added safety.

[b] On cluster of FlashSystem, iSCSI IP address column is the seventh column IP_address of the output of lsportip.

[c] On cluster of FlashSystem, port ID column is the first column id of the output of lsportip, not the sixth column port_id.

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