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01-Applied Mathematics & Information Sciences
An International Journal
               
 
 
 
 
 
 
 
 
 
 
 

Content
 

Volumes > Volume 5 > No. 5-2S

 
   

A Decentralized Resource Allocation Approach for Response-time Guarantees in Storage System

PP: 53S-60S
Author(s)
Liu Liu, , Lu Xu, Dezhi Yang,
Abstract
We present a decentralized resource allocation approach, DRG (Decentralized Response-time Guarantee), that can provide response time guarantees for multiple concurrent workloads sharing a back-end storage system in a distributed manner without assuming any support from the storage itself. This new approach uses several run-time statistics of both workloads and system as indicators of busty and load condition at the backend storage and accepts a control equation periodically to adjust the number of I/O requests which could be issued per workloads to meet the performance goals. Using a real I/O trace, we demonstrate that our approach can simultaneously meet the response-time requirements imposed by an SLO without requiring extensive knowledge of the underlying storage system.

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