7.2. iSCSI workflow¶
The typical workflow of exporting volumes via iSCSI is as follows:
- Assign the network with the traffic type iSCSI to a network interface on each node that you will add to a target group. Refer to Managing networks and traffic types.
- Create a target group on chosen nodes. Refer to Creating target groups.
- Create volumes and attach them to the target group as LUNs. Typically, you do this while creating the target group. However, you can also do this later, as described in Managing volumes.
- Optionally, enable CHAP and ACL authorization for the target group: create CHAP accounts and assign them to the target group, and then populate group’s access control list. Typically, you do this while creating the target group. However, you can also do this later, as described in Restricting access to target groups.
- Connect initiators to targets by using standard tools of your operating system or product (refer to the Storage User’s Guide). To view target IQNs, click the target group name.
7.2.1. Managing legacy iSCSI targets¶
After the upgrade to Acronis Cyber Infrastructure 2.5, you can run older iSCSI targets created on version 2.4 alongside new targets. For each older target, a target group is automatically created and iSCSI LUNs are moved to iSCSI volumes. Such a target group will have a name in the format group:<target_name>. For example, the iSCSI target with the IQN iqn.2014-06.com.vstorage:target1 will be placed in the target group named group:target1.
In the admin panel, you can manage older targets only by deleting them and detaching volumes from them. The full functionality is available using the vstorage-iscsi utility, as described in the Acronis Storage 2.4 Administrator’s Command Line Guide.
As older iSCSI targets do not support the ALUA mode, their LUNs are not highly available. To enable high availablity for them, detach a volume from an older target group and attach it to a newly created one, as described in Detaching volumes and Attaching volumes to target groups.