Patent ID: 11874748
Assignee: DELL PRODUCTS L.P.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method comprising:
maintaining a plurality of storage objects in a storage system, each of the storage objects containing data for only one host application of a plurality of host applications that run on a plurality of external host servers that are data access initiators relative to the storage system, all data for each host application being maintained on storage objects of a storage group that is uniquely associated with that host application, the storage system having a plurality of ports, not all of which are accessible by all the host servers, different groups of the ports being accessible to different ones of the host servers, and different ones of the storage groups being accessible to different ones of the host servers;
generating a rollback snapshot of associations between ones of the storage objects maintained by the storage system and at least one host server that is designated for retirement including generating a representation of a masking view that indicates membership of the retirement-designated host server in an initiator group with the world-wide name of the retirement-designated host server, a port group that indicates ones of the ports that the retirement-designated host server can access, and a storage group containing storage objects that the retirement-designated host server is permitted to access; and
following retirement of the retirement-designated host server, using the rollback snapshot to recover the retired host server by recreating the associations between the retirement-designated host server and the storage objects, comprising:
reconstructing the masking view that indicates membership of the retirement-designated host server in an initiator group with the world-wide name of the retirement-designated host server;
reconstructing the port group that indicates ones of the ports that the retirement-designated host server can access; and
reconstructing the storage group that the retirement-designated host server is permitted to access.