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

DIG: Rapid Characterization of Modern Hard Disk Drive and Its Performance Implication DIG:现代硬盘驱动器的快速表征及其性能含义

2008 Fifth IEEE International Workshop on Storage Network Architecture and Parallel I/Os Pub Date : 2008-09-22 DOI: 10.1109/SNAPI.2008.13

J. Gim, Y. Won, Jae-Sung Chang

{"title":"DIG: Rapid Characterization of Modern Hard Disk Drive and Its Performance Implication","authors":"J. Gim, Y. Won, Jae-Sung Chang","doi":"10.1109/SNAPI.2008.13","DOIUrl":"https://doi.org/10.1109/SNAPI.2008.13","url":null,"abstract":"In this work, we develop novel disk characterization suite, DIG (disk geometry analyzer), which allows us to rapidly extract and to characterize the key performance metric of modern hard disk drive. Development of this tool is accompanied by thorough examination of four off-the-shelf hard disk drives. DIG consists of three key ingredients: O(1) track boundary detection algorithm,O (log n) zone boundary detection algorithm, and hybrid sampling based seek time profiling. We particularly focus on addressing the scalability aspect of disk characterization. With DIG, we are able to extract key metrics of hard disk drive within 3-20 min. DIG allows us to determine the sector layout mechanism of the underlying hard disk drive, e.g. hybrid serpentine, cylinder serpentine and surface serpentine, and to build complete sector map from LBN to three dimensional space of (cylinder, head, sector). Examining the disks with DIG, we found a number of important observations. Modern hard disk drive puts great emphasis on minimizing the head switch overhead. This is done via sector layout mechanism and and surface serpentine and hybrid serpentine is the typical way of avoiding it. Legacy disk seek time model leaves much to be desired to be used in modern hard disk drive especially in short seeks (less than 5000 tracks).","PeriodicalId":335253,"journal":{"name":"2008 Fifth IEEE International Workshop on Storage Network Architecture and Parallel I/Os","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123865637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Data Structure Consistency Using Atomic Operations in Storage Devices 使用原子操作实现存储设备数据结构一致性

2008 Fifth IEEE International Workshop on Storage Network Architecture and Parallel I/Os Pub Date : 2008-09-22 DOI: 10.1109/SNAPI.2008.14

A. Devulapalli, D. Dalessandro, P. Wyckoff

引用次数: 14

A Model for Storage Processes in Network Environment and Its Implementation 网络环境下存储过程模型及其实现

2008 Fifth IEEE International Workshop on Storage Network Architecture and Parallel I/Os Pub Date : 2008-09-22 DOI: 10.1109/SNAPI.2008.8

T. Bilski

引用次数: 1

Implementation and Evaluation of iSCSI over RDMA 基于RDMA的iSCSI实现与评价

2008 Fifth IEEE International Workshop on Storage Network Architecture and Parallel I/Os Pub Date : 2008-09-22 DOI: 10.1109/SNAPI.2008.12

E. Burns, R. Russell

{"title":"Implementation and Evaluation of iSCSI over RDMA","authors":"E. Burns, R. Russell","doi":"10.1109/SNAPI.2008.12","DOIUrl":"https://doi.org/10.1109/SNAPI.2008.12","url":null,"abstract":"The Internet small computer systems interface (iSCSI) is a storage network technology that allows block-level access to storage devices, such as disks, over a computer network. Because iSCSI runs over the ubiquitous TCP/IP protocol, it has many advantages over proprietary alternatives. Due to the recent introduction of 10 gigabit Ethernet, storage vendors are interested in the benefits this large increase in network bandwidth could bring to iSCSI. To make full use of the bandwidth provided by a 10 gigabit Ethernet link, specialized remote direct memory access (RDMA) hardware is being developed to offload processing and reduce the data-copy-overhead found in a standard TCP/IP network stack. This paper focuses on the development of an iSCSI software implementation capable of supporting this new hardware, and a preliminary evaluation ofits performance. We describe an approach used to implement iSCSI extensions for remote direct memory access (iSER) with the UNH iSCSI reference implementation. This involved a threestep process: moving UNH-iSCSI software from the Linux kernel to user-space, adding support for the iSER extensions to the user-space iSCSI, and finally moving everything back into the Linux kernel. Results are given that show improved performance of the completed iSER-assisted iSCSI implementation on RDMA hardware.","PeriodicalId":335253,"journal":{"name":"2008 Fifth IEEE International Workshop on Storage Network Architecture and Parallel I/Os","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130090257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

On Maximizing iSCSI Throughput Using Multiple Connections with Automatic Parallelism Tuning 最大化iSCSI吞吐量使用多个连接与自动并行调优

2008 Fifth IEEE International Workshop on Storage Network Architecture and Parallel I/Os Pub Date : 2008-09-22 DOI: 10.1109/SNAPI.2008.15

F. Inoue, H. Ohsaki, Y. Nomoto, M. Imase

引用次数: 11

ADMAD: Application-Driven Metadata Aware De-duplication Archival Storage System ADMAD:应用驱动的元数据感知重复数据删除归档存储系统

2008 Fifth IEEE International Workshop on Storage Network Architecture and Parallel I/Os Pub Date : 2008-09-22 DOI: 10.1109/SNAPI.2008.11

Chuanyi Liu, Yingping Lu, Chunhui Shi, Guanlin Lu, D. Du, Dong-Sheng Wang

{"title":"ADMAD: Application-Driven Metadata Aware De-duplication Archival Storage System","authors":"Chuanyi Liu, Yingping Lu, Chunhui Shi, Guanlin Lu, D. Du, Dong-Sheng Wang","doi":"10.1109/SNAPI.2008.11","DOIUrl":"https://doi.org/10.1109/SNAPI.2008.11","url":null,"abstract":"There is a huge amount of duplicated or redundant data in current storage systems. So data de-duplication, which uses lossless data compression schemes to minimize the duplicated data at the inter-file level, has been receiving broad attention in recent years. But there are still research challenges in current approaches and storage systems, such as: how to chunking the files more efficiently and better leverage potential similarity and identity among dedicated applications; how to store the chunks effectively and reliably into secondary storage devices. In this paper, we propose ADMAD: an application-driven metadata aware de-duplication archival storage system, which makes use of certain meta-data information of different levels in the I/O path to direct the file partitioning into more meaningful data chunks (MC) to maximally reduce the inter-file level duplications. However, the chunks may be with different lengths and variable sizes, storing them into storage devices may result in a lot of fragments and involve a high percentage of random disk accesses, which is very inefficient. Therefore, in ADMAD, chunks are further packaged into fixed sized objects as the storage units to speed up the I/O performance as well as to ease the data management. Preliminary experiments have demonstrated that the proposed system can further reduce the required storage space when compared with current methods (from 20% to near 50% according to several datasets), and largely improves the writing performance (about 50%-70% in average).","PeriodicalId":335253,"journal":{"name":"2008 Fifth IEEE International Workshop on Storage Network Architecture and Parallel I/Os","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125419363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 66

Pre-allocation Size Adjusting Methods Depending on Growing File Size 根据文件大小增长预分配大小调整方法

2008 Fifth IEEE International Workshop on Storage Network Architecture and Parallel I/Os Pub Date : 2008-09-22 DOI: 10.1109/SNAPI.2008.9

T. Nakamura, N. Komoda

引用次数: 0

A Partial-Distribution-Fault-Aware Protocol for Consistent Updates in Distributed Storage Systems 分布式存储系统一致性更新的部分分布故障感知协议

2008 Fifth IEEE International Workshop on Storage Network Architecture and Parallel I/Os Pub Date : 2008-09-22 DOI: 10.1109/SNAPI.2008.16

P. Sobe

引用次数: 3

Parallel Processing of Data, Metadata, and Aggregates within an Archival Storage System User Interface (Toward Archiving a Million Files and a Million Megabytes per Minute) 归档存储系统用户界面中数据、元数据和聚合的并行处理(面向每分钟归档百万文件和百万兆字节)

2008 Fifth IEEE International Workshop on Storage Network Architecture and Parallel I/Os Pub Date : 2008-09-22 DOI: 10.1109/SNAPI.2008.10

M. Roschke, Danny P Cook, Bart J Parliman, David Sherrill

引用次数: 2