|Title:||(Latest Version) SCDA: SLA-aware Cloud Datacenter Architecture for Efficient Content Storage and Retrieval
|Subject(s):||Cloud architecture, max/min fairness, fast transfer, SLA- aware, prioritized rate.
|Abstract:||With the fast growth of (online) content and the need for
high quality content services, cloud data centers are increas-
ingly becoming the preferred places to store data and re-
trieve it from. With a highly variable network traffic and
limited resources, efficient server selection and data trans-
fer rate allocation mechanisms become necessary. However,
current approaches rely on random server selection schemes
and inefficient data transmission rate control mechanisms.
In this paper we present SCDA, an efficient server selec-
tion, resource allocation and enforcement mechanism with
many salient features. SCDA has prioritized rate alloca-
tion mechanism to satisfy different service level agreements
(SLA)s on throughput and delays. The allocation scheme
can achieve max/min fairness. SCDA has a mechanism to
detect and hence mitigate SLA violation in realtime.
We have implemented SCDA in the NS2 simulator. Ex-
tensive experimental results confirm some of the design goals
of SCDA to obtain a lower content transfer time and a higher
throughput. The design of SCDA can achieve a content
transfer time which is about 50% lower than the existing
schemes and a throughput which is higher than existing ap-
proaches by upto than 60%.
|Peer Reviewed:||not peer reviewed
|Date Available in IDEALS:||2013-01-24