Paper Info
Title
Activity Based Sector Synchronisation: Efficient Transfer of Disk-State for WAN Live Migration
Abstract
Live migration of virtual machines is now commonplace but the issue of synchronising storage remains an obstacle to wide-area migration between datacentres. We discuss the range of possible designs for synchronising disk images and argue that we have to be adaptive at the sector level to efficiently transfer disk-state to the destination. We show, using a number of production workloads, that delaying the transmission of "hot"sectors can achieve considerable bandwidth reduction over anaaive eager strategy. We introduce the Activity Based Sector Synchronisation (ABSS) algorithm and show by trace-drivensimulations that ABSS is able to deliver a useful trade-off with a data transmission overhead between 0.3% and 2.4% of a gigabit link whilst incurring in the majority of cases a migration latency of less than 1.1 s.
Year
DOI
Venue
2011
10.1109/MASCOTS.2011.20
MASCOTS
Keywords
Field
DocType
possible design,wan live migration,anaaive eager strategy,data transmission overhead,sector synchronisation,synchronising disk image,considerable bandwidth reduction,synchronising storage,efficient transfer,gigabit link whilst,live migration,migration latency,virtual machine,bandwidth,data transmission,prediction algorithms,algorithm design and analysis,heuristic algorithm,clustering algorithms,production,algorithm design,virtual machines,synchronization
Gigabit,Synchronization,Algorithm design,Virtual machine,Data transmission,Latency (engineering),Live migration,Computer science,Computer network,Real-time computing,Bandwidth (signal processing),Distributed computing
Conference
Citations 
PageRank 
References 
4
0.45
14
Authors
5
Name
Order
Citations
PageRank
Sherif Akoush11056.81
Ripduman Sohan236830.28
Bogdan Roman3594.15
Andrew Rice438430.11
A. Hopper5318159.67