## About Jobs

When you request an operation on one object, the system processes that operation immediately. For example, if you select one volume to delete, the volume is deleted immediately. However, because operations on more than one object can affect performance, when you request an operation on several objects, the system creates a job that completes the operation while you make other selections. You can follow the progress of a job and keep a history of its operations.

Each operation has a threshold number that indicates the number of objects that must be selected to cause a job to be created. The following operations create jobs when the number of objects you select meets or exceeds the operation's threshold number.

Operation | Page | Job Name | Threshold Number
--- | --- | --- | ---
Deleting a volume | Volume Summary | Volume Delete | 2
Creating a volume snapshot | Volume Summary | Volume Snapshot | 2
Mapping a volume to an initiator | Volume Summary Volume Detail Create Volume wizard Create Snapshot wizard | Volume Map | 2
Mapping an initiator to a volume | Initiator Summary Initiator Details Create Initiator wizard | Initiator Map | 2
Deleting the mapping between an initiator and a volume | Initiator Details- Mapping Summary Volume Details-Mapping Summary | Mapping Delete | 2
Deleting a storage pool | Storage Pool Summary | Pool Delete | 2
Deleting an initiator | Initator Summary | Initiator Delete | 2
Deleting a virtual disk | Virtual Disk Summary | Virtual Disk Delete | 1
Deleting a storage profile | Storage Profile Summary | Profile Delete | 2
Canceling a job in progress | Current Job Summary | Job Cancel | 50
Removing a completed or canceled job | Historical Job Summary | Job Remove | 50
Deleting a snapshot | Snapshot Summary | Snapshot Delete | 2
Repeating a snapshot | Snapshot Summary | Snapshot Delete | 2
Adding storage to a storage pool | Storage Pool Summary Storage Pool Details Wizards with the option to add storage | Virtual Disk Create | 1

### Related Topics

- Managing Jobs