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Optimization of iSCSI Remote Storage Access through Multiple Layers

Reika Higa, Kosuke Matsubara, Takao Okamawari, Saneyasu Yamaguchi, Masato Oguchi
2009 2009 International Conference on Advanced Information Networking and Applications Workshops  
iSCSI has a problem of drastic performance deterioration in the case of longer-latency. Thus, we have optimized iSCSI remote storage access through multiple layers.  ...  As a result, when RTT is 32ms, performance of the optimized iSCSI has achieved quadruple of that of the default iSCSI.  ...  effectiveness of changing Congestion Window control algorithm in TCP/IP with iSCSI access.  ... 
doi:10.1109/waina.2009.61 dblp:conf/aina/HigaMOYO09 fatcat:mxarsyzgirabpgi6etoecs7egy

Performance Improvement of iSCSI Remote Storage Access through Optimization of Multiple Layers

Masato Oguchi, Reika Higa, Kosuke Matsubara, Takao Okamawari, Saneyasu Yamaguchi
2013 Journal of Software  
iSCSI is one of the most popular protocols among the storage area network (SAN) working on an IP network. iSCSI is a standard to encapsulate a SCSI command into a TCP/IP packet, thus we can make an access  ...  In this paper, iSCSI sequential write access for a remote backup system is focused. It is well known that iSCSI experiences performance degradation under a high latency environment.  ...  ACKNOWLEDGMENT Part of this work is based on the research funded by Japan Science and Technology Agency in 2007 and 2008. We dedicate this paper to the late Mr.  ... 
doi:10.4304/jsw.8.3.538-546 fatcat:xf3ghb3455ayjncmu42lteutb4

TCP Congestion Window Controlling Algorithms on iSCSI Sequential Read Access

M. Toyoda, M. Oguchi, S. Yamaguchi
2005 21st International Conference on Data Engineering Workshops (ICDEW'05)  
Congestion Window, one of TCP parameters, has a close relationship with system performance in accessing remote storage with iSCSI.  ...  In this paper, we propose a dynamic Congestion Window control method to stabilize the uneven behavior of throughput observed on the iSCSI storage access, and examine the algorithms to make the Congestion  ...  Acknowledgment This project is partly supported by the Ministry of Education, Culture, Sports, Science and Technology, under Grant 13224014 of Grant-in-Aid for Scientific Research on Priority Areas.  ... 
doi:10.1109/icde.2005.292 dblp:conf/icde/ToyodaOY05 fatcat:qcbb6c4ypvc7jo6bwsd7ezqr4a

Performance Evaluation of Multiple TCP connections in iSCSI [article]

Bhargava Kumar K, Ganesh M. Narayan, K. Gopinath
2008 arXiv   pre-print
We propose a mechanism to share congestion information across multiple flows in "Fair-TCP" for improved performance.  ...  SANs based on Fibre Channel have been used extensively in the last decade while iSCSI is fast becoming a serious contender due to its reduced costs and unified infrastructure.  ...  However these TCP connections are treated independently: most TCP implementations keep state on a per-connection basis in a structure called TCP control block (TCB) or an equivalent construct and each  ... 
arXiv:0803.3338v1 fatcat:komxb6reijcl7n5wz3ln4jgg3q

Performance improvement of iSCSI remote storage access

Masato Oguchi, Reika Higa, Kosuke Matsubara, Takao Okamawari, Saneyasu Yamaguchi
2010 Proceedings of the 4th International Conference on Uniquitous Information Management and Communication - ICUIMC '10  
iSCSI is one of the most popular protocols among the storage area network (SAN) working on an IP network. iSCSI is a standard to encapsulate a SCSI command into a TCP/IP packet, thus we can make an access  ...  In this paper, iSCSI sequential write access for a remote backup system is focused. It is well known that iSCSI experiences performance degradation under a high latency environment.  ...  ACKNOWLEDGMENTS Part of this work is based on the research funded by Japan Science and Technology Agency in 2007 and 2008. We dedicate this paper to the late Mr.  ... 
doi:10.1145/2108616.2108675 dblp:conf/icuimc/OguchiHMOY10 fatcat:ckg4jtmlp5cwfp42ankr2cwsvi

Obtaining high performance for storage outsourcing

Wee Teck Ng, Bruce K. Hillyer
2001 Proceedings of the 2001 ACM SIGMETRICS international conference on Measurement and modeling of computer systems - SIGMETRICS '01  
In this paper, we measure the performance of I/O benchmarks accessing a remote block-level storage system.  ...  Network latencies represent distances ranging from a local neighborhood to halfway across a continent.  ...  We thank our colleague Hao Sun for helping to set up the congestion testbed.  ... 
doi:10.1145/378420.378813 dblp:conf/sigmetrics/NgH01 fatcat:e5pyuc4s2bhbdp5k4ghgjjoysm

Obtaining high performance for storage outsourcing

Wee Teck Ng, Bruce K. Hillyer
2001 Performance Evaluation Review  
In this paper, we measure the performance of I/O benchmarks accessing a remote block-level storage system.  ...  Network latencies represent distances ranging from a local neighborhood to halfway across a continent.  ...  We thank our colleague Hao Sun for helping to set up the congestion testbed.  ... 
doi:10.1145/384268.378813 fatcat:akzdx5be3bc45p4yiznrwdlhru

Towards Adapting NAS Mechanism over Solid State Disks

Shaikh Muhammad Allayear, Jannatul Ferdaus, Md. Salahuddin, Sung Soon Park
2014 IOSR Journal of Computer Engineering  
However, due to its relatively high price and low capacity, a major system research issue to address is on how to make SSDs play their most effective roles as a high-performance storage system in cost-and  ...  In this paper, we describe a NAS prototype that eliminates most software overheads and makes Solid State Disks a high-performance storage system in cost-and performance-effective ways.  ...  Acknowledgements In this paper we adapted iSCSI protocol to achieve better optimized result of online based MapReduce mechanism.  ... 
doi:10.9790/0661-16583139 fatcat:g7q3vib7fvgohear572gtzvuue

Incast Mitigation in a Data Center Storage Cluster Through a Dynamic Fair-Share Buffer Policy

Yawar Abbas Bangash, Tauseef Rana, Haider Abbas, Muhammad Ali Imran, Adnan Ahmed Khan
2019 IEEE Access  
Stefanov [8] in YSlow (a web page analyzer based on Yahoo rules) stated that in Yahoo, an extra 400ms reduced the traffic by 9%, and every 100ms latency costs 1% in business revenue to Amazon.  ...  In SDN, the control plane is moved out of a commodity switch and housed in the main controller. According to our best knowledge, a must-read comprehensive survey about SDN can be found at [10] .  ...  In summary both congestion window, and receiving window mechanisms are de-coupled from sender and receiver and delegated to a centralized SDS controller (because now we are in SDN environment). D.  ... 
doi:10.1109/access.2019.2891264 fatcat:lvd76vcaxjhf3ehoyxdhg5zhxi

A Distributed Storage System with Dynamic Tiering for iSCSI Environment

Atsushi Nunome, Hiroaki Hirata, Kiyoshi Shibayama
2015 International Journal of Networked and Distributed Computing (IJNDC)  
We also show a technique to reduce management traffic in iSCSI environment.  ...  We propose a distributed storage system which relocates data blocks autonomously among the storage nodes.  ...  Acknowledgment This work was supported in part by JSPS KAKENHI Grant Number 25330058.  ... 
doi:10.2991/ijndc.2015.3.1.5 fatcat:avzkvxlcifb4rgkd3nigrfo4ce

High-performance ethernet-based communications for future multi-core processors

Michael Schlansker, Norman P. Jouppi, Nagabhushan Chitlur, Erwin Oertli, Paul M. Stillwell, Linda Rankin, Dennis Bradford, Richard J. Carter, Jayaram Mudigonda, Nathan Binkert
2007 Proceedings of the 2007 ACM/IEEE conference on Supercomputing - SC '07  
Complex control must be implemented using on-load software that exploits general-purpose processors and memory.  ...  Functions such as congestion management, quality of service, and a variety of complex client communication services are incorporated as flexible on-load software to allow the incorporation of new functionality  ...  For example, TCP connections maintain state including a TCP window to track data exchange with a single remote connection.  ... 
doi:10.1145/1362622.1362672 dblp:conf/sc/SchlanskerCOSRBCMBJ07 fatcat:b6nqg7loczb6bifp5cptihxjgy

MemX: Virtualization of Cluster-Wide Memory

Umesh Deshpande, Beilan Wang, Shafee Haque, Michael Hines, Kartik Gopalan
2010 2010 39th International Conference on Parallel Processing  
MemX provides a number of benefits in virtualized settings: (1) VM workloads that access large datasets can perform lowlatency I/O over virtualized cluster-wide memory; (2) VMs can transparently execute  ...  We present MemX -a distributed system that virtualizes cluster-wide memory to support data-intensive and large memory workloads in virtual machines (VMs).  ...  Thus RMAP completely bypasses the TCP/IP protocol stack and communicates directly with the network device driver. A fixed-size transmission window is maintained to control the transmission rate.  ... 
doi:10.1109/icpp.2010.74 dblp:conf/icpp/DeshpandeWHHG10 fatcat:fe3zmjieu5h7rctzntzf335fu4

Fitting Square Pegs Through Round Pipes: Unordered Delivery Wire-Compatible with TCP and TLS [article]

Michael F. Nowlan, Nabin Tiwari, Janardhan Iyengar, Syed Obaid Amin, Bryan Ford
2013 arXiv   pre-print
Internet applications increasingly employ TCP not as a stream abstraction, but as a substrate for application-level transports, a use that converts TCP's in-order semantics from a convenience blessing  ...  Minion's protocols can run on unmodified TCP stacks, but benefit incrementally when either endpoint is upgraded, for a backward-compatible deployment path.  ...  ) are based, likely to operate in almost any network environment purporting to offer "Internet access."  ... 
arXiv:1103.0463v3 fatcat:hn2k25cefbgxbpwgbq3ri5puxa

Deep scientific computing requires deep data

W. T. C. Kramer, A. Shoshani, D. A. Agarwal, B. R. Draney, G. Jin, G. F. Butler, J. A. Hules
2004 IBM Journal of Research and Development  
multi-terabyte files in a timely and secure manner.  ...  In addition to teraflop-range computing engines with their own local storage, facilities must provide large data repositories of the order of 10 -100 petabytes, and networking to allow the movement of  ...  TCP uses a congestion window to track the sending rate that is allowed.  ... 
doi:10.1147/rd.482.0209 fatcat:cqqsgvj4s5fi7kqxla7rvomujq

Performance of HPC Middleware over InfiniBand WAN

S. Narravula, H. Subramoni, P. Lai, R. Noronha, D.K. Panda
2008 2008 37th International Conference on Parallel Processing  
With the advent of long haul InfiniBand (IB WAN), IB applications now have intercluster reaches.  ...  Overall, these results demonstrate that IB WAN technologies can enable cluster-of-clusters architecture as a feasible platform for HPC systems.  ...  Acknowledgments We thank Bhargavi Rajaraman for carrying out some of the experiments and participating in the discussions related to the paper.  ... 
doi:10.1109/icpp.2008.75 dblp:conf/icpp/NarravulaSLNP08 fatcat:4mvqel2pdjetxbgna5lrnqcmpm
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