公开(公告)号：US09716611B1

公开(公告)日：2017-07-25

申请号：US13904368

申请日：2013-05-29

Applicant: EMC Corporation

Inventor： Anestis Panidis ,  Arieh Don ,  Subin George

IPC: H04L12/703 ,  H04L12/24

CPC classification number: H04L41/06

Abstract: A computer-implemented method is disclosed to enhance link anomaly tolerance in a small computer system interface (SCSI) system. The method starts with detecting a SCSI command failed at a SCSI target, where the SCSI target is communicatively coupled with a SCSI initiator through a set of communication links and the failed SCSI command is sent from the SCSI initiator. After detecting the failure, the SCSI target withholds returning a response for the failure. Then the SCSI target checks a status of the set of communication links periodically within the withholding duration while the response for the failed SCSI command is withheld. The SCSI target returns the response for the failed SCSI command upon at least one of two conditions is met: (1) The withhold duration expires; (2) The set of communication links is determined to function normally based on checking the status of the set of communication links.

公开(公告)号：US09600377B1

公开(公告)日：2017-03-21

申请号：US14559031

申请日：2014-12-03

Applicant: EMC Corporation

Inventor： Saar Cohen ,  Assaf Natanzon ,  Anestis Panidis

IPC: G06F11/00 ,  G06F11/14

CPC classification number: G06F11/1469 ,  G06F11/1448 ,  G06F11/1453 ,  G06F11/1464 ,  G06F11/1471 ,  G06F2201/82 ,  G06F2201/84 ,  G06F2201/855

Abstract: In one aspect, a method includes receiving a request to restore data of a volume, determining if the data is stored at a first storage device or a second storage device, restoring the data of the volume by using a journal and a first snapshot of the volume stored at the first storage device if the data is stored at the first storage device and restoring the data of the volume by using a second snapshot of the volume stored at the second storage device if the data is stored at the second storage device.

公开(公告)号：US09405481B1

公开(公告)日：2016-08-02

申请号：US14572899

申请日：2014-12-17

Applicant: EMC Corporation

Inventor： Saar Cohen ,  Assaf Natanzon ,  Anestis Panidis ,  Kadir Ozdemir

IPC: G06F12/00 ,  G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/0641 ,  G06F3/065 ,  G06F3/067 ,  G06F11/14

Abstract: In one aspect, a method includes replicating a first volume to a consistency group (CG) file on a backup device. The method also includes replicating a second volume to the CG file concurrently with the replicating of the first volume, the first and second volumes being in a consistency group.

Abstract translation: 一方面，一种方法包括将第一卷复制到备份设备上的一致性组（CG）文件。 该方法还包括将第二卷与第一卷的复制同时复制到CG文件，第一和第二卷在一致性组中。