Other tools, such as backup and restore products, data mirroring products, data replication products, or FC/iSCSI storage routers, can be re-positioned as data migration tools. However, most of them lack features that are specific to this function (for example, a DoD-strength secure erasure function to ensure the old storage data is cleanly wiped out), or their lack of total transparency requires host-side drivers or other agents to be deployed.
Cirrus’ Data Migration Server (DMS) is a 100% transparent tool that does not require any changes at the host, the FC switch, nor storage. The insertion of the DMS appliance into the existing production system and the execution of the entire migration project requires no reconfiguration of any aspect of the production environment. Simply insert the FC ports found on the DMS appliance one path at a time into the FC fabric, and data migration can begin. This means IT managers or service providers can avoid all the pain-points associated with the certification of host drivers, changing of multi-path software, modification of FC zones, and changing of LUN masking/presentations at the storage controllers. The enormous amount of work and potential down-time avoided translates to a significant amount of cost savings and greatly improves ROI.