A storage system maintains a journal of journal entries and at lease one snapshot of one or more data volumes. By assigning a unique sequence number to journal and snapshot, it is easy to find a journal which can be applied to the snapshot. A technique is described for detecting an overflow condition of running out of journal space and recovering the journal space.

 
Web www.patentalert.com

> Method and system for alerting an entity to design changes impacting the manufacture of a semiconductor device in a virtual fab environment

~ 00360