Data swapping in a storage system

Systems and methods for data swapping in a storage network are provided. The method comprises associating a flag with a first track on a first volume (TA) and a first track on a second volume (TB) to indicate that I/O access to TA is to be redirected to TB, and that I/O access to TB is to be redirec...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Bitar, Akram, Sasson, Amir
Format: Patent
Sprache:eng
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Systems and methods for data swapping in a storage network are provided. The method comprises associating a flag with a first track on a first volume (TA) and a first track on a second volume (TB) to indicate that I/O access to TA is to be redirected to TB, and that I/O access to TB is to be redirected to TA; locking TA and TB to prohibit I/O access to TA and TB; copying data stored on TA and TB to cache; swapping data between TA and TB; unlocking TA and TB to allow I/O access to TA and TB; redirecting I/O access to TB, in response to receiving an I/O request to access TA, when TA is flagged, and redirecting I/O access to TA, in response to receiving an I/O request to access TB, when TB is flagged.