Emc IP Holding Company LLC

Uday Jonnala

Pradeep Thomas

Abhishek Rajimwale

Yamini Allu

Subhasish Chakraborty

Hongyu Zhang

Balaji Subramanian

Methods and apparatuses are described to provide a mechanism to improve replication performance by understanding available bandwidths of multiple source servers and load balancing the replication among the source servers based on fingerprints of data units to be replicated. A separate source server can be identified for one source server to replicate the data units to a target server. A replication request is sent from the one source server to the separate source server to identify the data units. A reply may be received from the separate source server to indicate that one or more of the data units are replicated from the separate source server. Subsequently, the remaining ones of the data units not indicated in the reply may be sent directly from the one source server to the target server without sending the one or more data units indicated in the reply.

Efficient resource utilization for cross-site deduplication

In one embodiment, a request is received from a remote device of a user for configuring a tenant-unit of a storage system via a secure connection session. A secure multi-tenancy (SMT) module determines a first network identity associated with the secure connection session. The SMT module examines an SMT registry namespace associated with the tenant-unit of the tenant to determine a second network identity that has been assigned to the tenant-unit. The first network identity is compared with the second network identity. The request is allowed to configure the tenant-unit in response to determining that the first and second network identities match; otherwise, the request is denied.

System and method for tenant network identity-based authentication and authorization for administrative access in a protection storage system

According to some embodiment, a backup storage system receives, by a first phase of a data deduplication pipeline, a request from a client for reading or writing a data segment associated with a data stream stored in or to a storage system. In response to the request, the system retrieves, by the first phase, load parameters associated with a second phase in the data deduplication pipeline. For each of the load parameters associated with the second phase, the system determines, by the first phase, whether the load parameter has exceeded a load threshold associated with the second phase. The system throttles, by the first phase, performance of a specific job in the data deduplication pipeline by the second phase in response to a determination that at least one of the load parameters associated with the second job phase has exceeded the load threshold associated with the second phase.

Method and system for data deduplication based on load information associated with different phases in a data deduplication pipeline

According to some embodiment, a backup storage system receives a plurality of input/output (IO) requests at the storage system. The IO requests include random IO requests and sequential IO requests. The storage system determines whether there is a pending random IO request from the plurality of IO requests. In response to determining that there is a pending random IO request, the storage system determines whether a total latency of the sequential IO requests exceeds a predicted latency of the pending random IO request. The storage system services the pending random IO request in response to determining that the total latency of the sequential IO requests exceeds the predicted latency of the pending random IO request.

Growing community of inventors

Cupertino, CA, United States of America

Uday Jonnala