| P.M. Chen, E.K. Lee, G.A. Gibson, R.H. Katz, and D.A. Patterson, "RAID: High-Performance Reliable Secondary Storage," ACM Computing Surveys, vol. 36, no. 3, pp. 145-185, Aug. 1994. |
....discussed in this paper. A common technique to protect against both data and service loss is to add redundancy to the system, either by mirroring data or adding parity information [4] 5] There is a vast body of literature analyzing techniques in support of homogeneous disk subsystems [6] but very few are concerned with heterogeneous disk subsystems [7] 8] From a practical perspective, these techniques must be extended to support heterogeneous subsystems. This is due to the current technological trends in the area of magnetic disks, namely, the annual 40 to 60 increase in ....
....With the help of data replication or parity coding, the reliability of a disk array can be greatly improved. Several studies have quantified the reliability of homogeneous disk arrays in the context of continuous media servers with mirroring [17] parity coding schemes (RAID) 5] 18] 19] [6], 1] or a combination of both [20] The concepts of re liability or fault tolerance involve a large number of issues concerning software, hardware (mechanics and electronics) and environmental (e.g. power) failures. A large body of work already exists in the field of reliable computer design ....
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P.M. Chen, E. K. Lee, G. A. Gibson, R. H. Katz, and D. A. Patterson, "RAID: High-Performance, Reliable Secondary Storage, " ACM Computing Surveys, vol. 26, no. 2, pp. 145-185, June 1994.
....and storage inefficiency. An alternate solution is to break media objects into smaller segments and distribute one or more copies of each segment in a system of caches connected by a storage, local or metro area network. This idea of data striping has been used widely in disk arrays such as RAIDs [16], and distributed cluster based video on demand (VoD) servers [2] 8] 9] 12] Such a scheme can reduce the required stor age space compared to replication schemes and provide the added advantages of load balance, fault tolerance, large parallelism, high cache hit ratio, and reduced network ....
....We use a novel Rainbow data replacement policy based on the concept of access potential that accurately captures popularity of clip segments. Several research efforts, such as Project MARS [12] Microsoft s TIGER file system [9] Server Array [8] and research reported in the literature [13] [16], 24] 26] have ad dressed the problem of distributed or striped layouts. The primary focus of these schemes however, has been on video servers constructed using disks or tightly coupled clusters. Also, they focus on optimizing data layouts for high concurrency and balanced operation of ....
[Article contains additional citation context not shown here]
Chen, P., et al., "RAID: High-Performance, Reliable Secondary Storage," ACM Computing Surveys, Jun, 1994.
....1946. A. The Problem Caching is one of the oldest and most fundamental metaphor in modern computing. It is widely used in storage systems (for example, IBM ESS or EMC Symmetrix) databases [1] web servers [2] middleware [3] processors [4] file systems [5] disk drives [6] RAID controllers [7], operating systems [8] and in varied and numerous other applications such as data compression [9] and list updating [10] Any substantial progress in caching algorithms will affect the entire modern computational stack. Consider a system consisting of two memory levels: main (or cache) and ....
P. M. Chen, E. L. Lee, G. A. Gibson, R. H. Katz, and D. A. Patterson, "RAID: High-performance, reliable secondary storage," ACM Computing Surveys, vol. 26, no. 2, pp. 145--185, 1994.
....to this problem is to use error control codes (ECC) for forward error correction, and a RAID like approach (dubbed airRAID) that stripes the data. The server is required to transmit the stripes on different frequencies, much like the RAID approach spreads stripes of data on different disks [5]. ECC is not always sufficient to achieve forward error correction, therefore, uncorrectable errors remains an issue (which is ignored in the past work on data broadcast) Battlefield Awareness and Data Dissemination (BADD) Advanced Concept Technology Demonstration (ACTD) is a project in which our ....
P. M. Chen, E. K. Lee, G. A. Gibson, R. H. Katz, and D. A. Patterson, "RAID: Highperformance, reliable secondary storage," ACM Computing Surveys, vol. 26, no. 2, pp. 145--185, 1994.
....personal computers. An Evidence Management Service (EMS) will use this system for evidence storage purposes: it is one of the available storage services to the EMS. Many solutions to store survivable documents within an enterprise are currently available, including distributed file systems, RAID [Chen94], replicated databases, Storage Area Networks (SAN) and Network Attached Storage (NAS) These resources are traditionally quite expensive. In spite of this fact, medium and large enterprises already own a vast amount of cheap storage and processing capabilities. In fact, enterprises widely use ....
P. Chen et al. - "RAID: High Performance, Reliable Secondary Storage" - ACM Computing Surveys, pp. 145-186 - June 1994
....1 Introduction The increasing imbalance between the speeds of processors and I O devices has resulted in the I O subsystem becoming a bottleneck in many applications. The use of multiple disks to build a parallel I O subsystem has been advocated to enhance I O performance and system availability [3], and most current high performance systems incorporate some form of parallel I O. Prefetching is a powerful technique to reduce the I O latency seen by an application. This is particularly true in a parallel I O system where prefetching can be effectively used to obtain parallelism in disk ....
P. M. Chen, E. K. Lee, G. A. Gibson, R. H. Katz, and D. A. Patterson. RAID: High Performance Reliable Secondary Storage. ACM Computing Surveys, 26(2):145--185, 1994.
....h 1) the original data can be reconstructed if any n blocks out of n h blocks are intact. Such ECC coding can be used at different levels in a video server architecture. i) it can be applied internally to a server node to protect it against disk failures. Disk arrays that are grouped into a RAID [8] are used for this purpose. ii) ECC can be used to protect against data loss in the network. Such a scheme is called Forward Error Correction (FEC) iii) ECC is also possible on the application level, where the striping blocks from different server nodes are grouped into an ECC block. This ....
P. M. Chen, E. K. Lee, G. A. Gibson, R. H. Katz, and D. A. Patterson. "RAID: High-Performance, Reliable Secondary Storage." ACM Computing Surveys, 26(2):145--185, June 1994.
....largely developed. Therefore, I O storage system is faced with greatly challenge, it is demanded with large capacity, high performance, and high availability. One innovation that improved both availability and performance of storage system is redundant arrays of independent disks, acronym RAID [1,2,3,4]; it has been promoted as the most promising technology to fit these needs. And SCSI (Smafi Computer System Interface) or Fiber Channel (FC) always occupies the disk drive areas of RAID. SCSI disk drive or Fiber Channel has a lot of well known advantages; such as high data transfer rate, large ....
....Table 5 Disk drive parameters Drive type ST36810A ST34520N InteRdace Ultra ATA 66 Ultra SCSI Cylinder 887 9006 Number of heads 255 4 Capacity 6.8GB 4.55GB Sectors Track (avg. 63 246 Bytes per sector 512 512 Spindle speed 7200rpm 7200rpm Average seek time 8.6ms 9. 5ms We use Qbench [4] I O traces as the input to RAID experimental platforms. The workload is respectively sent from the same host to SCSI RAID and EIDE RAID. It varies from 1 sector, 2 sectors, 4 sectors, 8 sectors, up to 128 sectors, where read write one sector is 54.3 , and the other is respectively around 6.52 . ....
P.M.Chen, E.K.Lee, G.A.Gibson, R.H.Katz and D.A.Patterson, "RAID: High-performance, Reliable Secondary Storage", ACM Computing Surveys, vol.26, No.2, 1994, 145-185
....largely developed. Therefore, I O storage system is faced with greatly challenge, it is demanded with large capacity, high performance, and high availability. One innovation that improved both availability and performance of storage system is redundant arrays of independent disks, acronym RAID [1,2,3,4]; it has been promoted as the most promising technology to fit these needs. And SCSI (Smafi Computer System Interface) or Fiber Channel (FC) always occupies the disk drive areas of RAID. SCSI disk drive or Fiber Channel has a lot of well known advantages; such as high data transfer rate, large ....
P.M. Chen, E. K. Lee, G. A. Gibson, R. H. Katz, and D. A. Patterson; "RAID: High-Performance, Reliable Secondary Storage", ACM Computing Surveys, Vol.26, No.2, June 1994, pp.145-185.
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P.M. Chen, E.K. Lee, G.A. Gibson, R.H. Katz, and D.A. Patterson, "RAID: High-Performance Reliable Secondary Storage," ACM Computing Surveys, vol. 36, no. 3, pp. 145-185, Aug. 1994.
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P. M. Chen, E. K. Lee, G. A. Gibson, R. H. Katz, and D. A. Patterson, "RAID: high-performance, reliable secondary storage," ACM Computing Surveys, vol. 26, no. 2, pp. 145--185, June 1994.
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P. M. Chen, E. K. Lee, G. A. Gibson, R. H. Katz, and D. A. Patterson, "RAID: high-performance, reliable secondary storage," ACM Computing Surveys, vol. 26, no. 2, pp. 145--185, June 1994.
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P. Chen, E. Lee, G. Gibson, R. Katz, and D. Patterson, "RAID: High-Performance, Reliable Secondary Storage," ACM Computing Surveys, 26(2):145-188, June 1994.
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P. M. Chen, E. K. Lee, G. A. Gibson, R. H. Katz, and D. A. Patterson, "RAID: high-performance, reliable secondary storage," ACM Computing Surveys, vol. 26, no. 2, pp. 145--185, June 1994.
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P. M. Chen, E. L. Lee, G. A. Gibson, R. H. Katz, and D. A. Patterson, "RAID: High-performance, reliable secondary storage," ACM Computing Surveys, vol. 26, no. 2, pp. 145--185, 1994.
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P.M. Chen, E.K. Lee, G.A. Gibson, R.H. Katz and D.A. Patterson: "RAID, HighPerformance, Reliable Secondary Storage", ACM Computing Surveys, Vol.26, No.2, pp.145185, 1994.
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P. M. Chen, E. K. Lee, G. A. Gibson, R. H. Katz, and D. A. Patterson, "RAID: High-performance, reliable secondary storage," ACM Computing Surveys, vol. 26, no. 2, pp. 145--185, June 1994.
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P. M. Chen, E. K. Lee, G. A. Gibson, R. H. Katz, and D. A. Patterson, "RAID: High-performance, reliable secondary storage," ACM Computing Surveys, vol. 26, no. 2, pp. 145--185, June 1994.
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P. Chen and et al., "Raid: High-performance, reliable secondary storage," ACM Computing Surveys, 1994.
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Peter M. Chen, Edward K. Lee, Garth A. Gibson, Randy H. Katz, and David A. Patterson, "RAID: high-performance, reliable secondary storage," ACM Computing Surveys (CSUR), vol. 26, no. 2, pp. 145--185, 1994.
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P. Chen and et al., "Raid: High-performance, reliable secondary storage," ACM Computing Surveys, 1994.
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P. Chen and et al., "Raid: High-performance, reliable secondary storage," ACM Computing Surveys, 1994.
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Peter M. Chen, Edward K. Lee, Garth A. Gibson, Randy H. Katz, and David A. Patterson, "RAID: high-performance, reliable secondary storage," ACM Computing Surveys (CSUR), vol. 26, no. 2, pp. 145--185, 1994.
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P. M. Chen, E. K. Lee, G. A. Gibson, R. H. Katz, and D. A. Patterson, "RAID: Highperformance, reliable secondary storage," ACM Computing Surveys, vol. 26, pp. 145-1851994.
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Chen, P., et al., "RAID: High-performance, Reliable Secondary Storage," ACM Computing Surveys, Jun, 1994.
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