An Intelligent Data Placement Strategy for Hierarchical Storage Systems

Author(s):  
Weixuan Shi ◽  
Peng Cheng ◽  
Chi Zhu ◽  
Zhiguang Chen
IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
M. Maghsoudloo ◽  
A. Rahdari ◽  
N. Khoshavi

2021 ◽  
pp. 102295
Author(s):  
Jinting Ren ◽  
Xianzhang Chen ◽  
Duo Liu ◽  
Yujuan Tan ◽  
Moming Duan ◽  
...  

Author(s):  
Phillip K.C. Tse

The data striping technique has been successfully applied on disks to reduce the time to access objects from the disks as shown in Chapter VI. Similarly, the striping technique has been investigated to reduce the time to access objects from the tape libraries. Similar to the striping on disks, the objective of the parallel striping method is to reduce the time to access objects from the tape libraries. The parallel tape striping directly applies the striping technique to place data stripes on tapes. The triangular placement method changes the order in which data stripes are stored on tapes to further enhance the performance. In the next section, the parallel tape striping method will be described. The performance of the parallel tape striping follows. After that, the triangular placement method is explained, and it is followed by the performance of the triangular placement method.


Author(s):  
Phillip K.C. Tse

The main objective of the tertiary storage level is to provide huge storage capacity at low cost. Several types of storage devices are available to be used at the tertiary storage level in Hierarchical Storage Systems (HSS). They include: • Magnetic tapes • Optical disks • Optical tapes These storage devices are composed of fixed storage drives and removable media units. The storage drives are fixed to the computer system. The removable media unit can be removed from the drives so that the storage capacity can be expanded with more media units. When data on a media are accessed, the media unit is accessed from their normal location. One of the storage drives on the computer system is chosen. If there is a media unit in the storage drive, the old media unit is unloaded and ejected. The new media unit is then loaded to the drive. Each type of storage drive may handle the storage drives and media units differently. The magnetic tapes are described below in the next section. Then, the optical tapes are presented. Afterwards, the optical disks are briefly described before this chapter is summarized.


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