Managing data in a multi-level raid storage array

专利名称：Managing data in a multi-level raid storage

array

发明人：David K. Umberger,Guillermo

Navarro,Jonathan Condel

申请号：US10154870申请日：20020523

公开号：US20030221060A1公开日：20031127

专利附图：

摘要：A system and methods implemented within a multi-level RAID (redundant arrayof independent disks) storage array operate to initially write data to a lower performing

RAID level within the array. In addition, data is migrated between lower and higherperforming RAID levels via data migration processes that function as backgroundprocesses. Benefits of the disclosed system and methods include a non-disruptiveenvironment for servicing host I/O (input/output) requests. Array response times aresignificantly reduced by not allowing initial data writes to interfere with higherperforming RAID levels and by migrating data between lower and higher performingRAID levels in the background when the array is less busy servicing host I/O requests.

申请人：UMBERGER DAVID K.,NAVARRO GUILLERMO,CONDEL JONATHAN

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