Role-Based Access Control (RBAC) is the most widely used model for advanced access
control deployed in diverse enterprises of all sizes. RBAC critically depends on defining …

In a distributed storage system, code symbols are dispersed across space in nodes or
storage units as opposed to time. In settings such as that of a large data center, an important …

Data-intensive clusters and object stores are increasingly relying on in-memory object
caching to meet the I/O performance demands. These systems routinely face the challenges …

Erasure coding is a low-cost redundancy mechanism for distributed storage systems by
storing stripes of data and parity chunks. Wide stripes are recently proposed to suppress the …

In-memory key/value store (KV-store) is a key building block for many systems like
databases and large websites. Two key requirements for such systems are efficiency and …

With increase in scale, the number of node failures in a data center increases sharply. To
ensure availability of data, failure-tolerance schemes such as Reed-Solomon (RS) or more …

We propose repair pipelining, a technique that speeds up the repair performance in general
erasure-coded storage. By carefully scheduling the repair of failed data in small-size units …

Large distributed storage systems use erasure codes to reliably store data. Compared to
replication, erasure codes are capable of reducing storage overhead. However, repairing …

Erasure codes are being extensively deployed in distributed storage systems instead of
replication to achieve fault tolerance in a storage efficient manner. While traditional erasure …

Erasure coding is widely used for massive storage in data centers to achieve high fault
tolerance and low storage redundancy. Since the cross-rack communication cost is often …