Modeling and performance evaluation of iSCSI storage area networks over TCP/IP-based MAN and WAN networks

Gauger, Christoph M.; Köhn, Martin; Gunreben, S.; Sass, Detlef; Pérez, Santiago

doi:10.1109/icbn.2005.1589695

Cited by 23 publications

(15 citation statements)

References 12 publications

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“…Though IDC views iSCSI as the fastest-growing area of the storage market for the last year, NBD (Network Block Device) is still a convenient choice to build a IP-SAN within local network. We model the NBD protocol in the similar way that the iSCSI protocol has been modeled in [7]. We validate the model against real systems.…”

Section: Network Modelmentioning

confidence: 98%

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An Analytical Performance Model of IP-SAN

Wang

Liu

et al. 2008

2008 International Conference on Networking, Architecture, and Storage

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In this paper we propose a component-based analytical performance model for IP-SAN. We model four key components within IP-SAN individually and they are IP network, cache, RAID and disks. We validate these component models and compose them to give an entire IP-SAN performance model. The entire IP-SAN model analyzes the performance of an IP-SAN configuration under multiple synchronous workloads by using closed queueing network model and under asynchronous workload by using open queueing network model. We also validate the entire IP-SAN performance model against a real IP-SAN system. The theoretical results are compared with the results from a real IP-SAN using a variety of synthetic workloads.These experiments prove that the component-based method is an appropriate way to build performance model for a complex storage system. To our knowledge, this is the first exploration into building analytical performance model for entire IP-SAN system and validating against a real system. We also identify areas for future research in the performance analysis of real IP-SAN.

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Section: Network Modelmentioning

confidence: 98%

“…Varki and Merchant [5,10] have developed the performance model of a real disk array in detail. Gauger [7] presents an analytical model for iSCSI protocol.…”

Section: Related Workmentioning

confidence: 99%

An Analytical Performance Model of IP-SAN

Wang

Liu

et al. 2008

2008 International Conference on Networking, Architecture, and Storage

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“…There have been several researches on performance evaluation of the iSCSI protocol in long-fat networks [11][12][13]. In [11][12][13], the performance of the iSCSI protocol is evaluated using experiment [11], simulation [12] or mathematical analysis [13].…”

Section: Related Workmentioning

confidence: 99%

On Maximizing iSCSI Throughput Using Multiple Connections with Automatic Parallelism Tuning

Fumito

Ohsaki

Yoshihiro

et al. 2008

2008 Fifth IEEE International Workshop on Storage Network Architecture and Parallel I/Os

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In this paper, we propose an iSCSI-APT (iSCSI with Automatic Parallelism Tuning) that maximizes iSCSI throughput in long-fat networks. In recent years, as a protocol for building SANs (Storage Area Networks), iSCSI has been attracting attention for its low cost and high compatibility with existing networking infrastructure. However, it has been known that iSCSI throughput degrades in a long-fat network. iSCSI supports a feature called multiple connections, which allows data delivery over multiple TCP connections in a single session. However, for effective utilization of the multiple connections feature, the number of multiple connections must be appropriately configured according to the network status. In this paper, we propose the iSCSI-APT that automatically adjusts the number of multiple connections according to the network status. Through experiments using our iSCSI-APT implementation, we demonstrate that iSCSI-APT operates quite effectively regardless of the network delay.

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“…CPU, storage, networking). Open source technologies and converged networks [3] [4] are cost-efficient IaaS system building blocks, therefore we focus on open source IaaS solutions and Gigabit Ethernet (GE) [5] networks in this paper.…”

Section: Introductionmentioning

confidence: 99%

Block Level Storage Support for Open Source IaaS Clouds

Ács

Gergely

Kacsuk

et al. 2013

2013 21st Euromicro International Conference on Parallel, Distributed, and Network-Based Processing

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Cloud computing is the dominating paradigm in distributed computing. The most popular open source cloud solutions support different type of storage subsystems, because of the different needs of the deployed services (in terms of performance, flexibility, cost-effectiveness). In this paper, we investigate the supported standard and open source storage types and create a classification. We point out that the Internet Small Computer System Interface (iSCSI) based block level storage can be used for I/O intensive services currently. However, the ATA-over-Ethernet (AoE) protocol uses fewer layers and operates on lower level which makes it more lightweight and faster than iSCSI. Therefore, we proposed an architecture for AoE based storage support in OpenNebula cloud. The novel storage solution was implemented and the performance evaluation shows that the I/O throughput of the AoE based storage is better (32.5-61.5%) compared to the prior iSCSI based storage and the new storage solution needs less CPU time (41.37%) to provide the same services.

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Modeling and performance evaluation of iSCSI storage area networks over TCP/IP-based MAN and WAN networks

Cited by 23 publications

References 12 publications

An Analytical Performance Model of IP-SAN

An Analytical Performance Model of IP-SAN

On Maximizing iSCSI Throughput Using Multiple Connections with Automatic Parallelism Tuning

Block Level Storage Support for Open Source IaaS Clouds

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