公开(公告)号：GB2504645A

公开(公告)日：2014-02-05

申请号：GB201320889

申请日：2012-04-18

Applicant: IBM

Inventor： TAUB TZAFRIR ZVI ,  AKIRAV SHAY HAIM ,  CARO AVIV ,  PAZ GIL ELYAHU ,  MAOZ ITAY ,  SHMUELI URI

IPC: G06F11/14 ,  G06F11/20 ,  H04B1/74

Abstract: Exemplary method, system, and computer program product embodiments for coordinated disaster recovery are provided. In one embodiment, by way of example only, a reconciliation process is performed for resolving intersecting and non-intersecting data amongst disaster recovery systems for takeover operations. An ownership synchronization process is coordinated for replica cartridges via the reconciliation process at the disaster recovery systems. The disaster recovery systems continue as a replication target for source systems and as a backup target for local backup applications. Additional system and computer program product embodiments are disclosed and provide related advantages.

公开(公告)号：GB2484835A

公开(公告)日：2012-04-25

申请号：GB201119247

申请日：2010-07-28

Applicant: IBM

Inventor： AKIRAV SHAY HAIM ,  DROBCHENKO ELENA ,  KRIKLER SAMUEL ,  MELAMED DAN ,  PAZ GIL ELYAHU ,  LAZAR AHARON ,  MAOZ ITAY ,  BACHAR YARIV

IPC: G06F11/20

Abstract: Various embodiments for synchronization of source and replicated instances of sequential access storage components in a computing environment by a processor device are provided. A replication synchronization table (RST) is configured for the source instance. The RST is adapted for recording compacted information for at least one of a truncate and an erase operation applied on the source instance. The RST of the source instance is updated at a source component with the compacted information. The updated RST is transmitted from the source instance to the replicated instance. Based on the RST of the source instance and the RST of the replicated instance, data representative of a most recent position on the source component from which data should be transmitted to a replicated component to achieve a full synchronization is determined.