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(a) The Seagate Pipeline HD SATA ST2000VM003 hard drive has the following specifications: Nominal Capacity Sector size: Guaranteed Sectors: Rotational speed: Sustained transfer rate (max):
(a) The Seagate Pipeline HD SATA ST2000VM003 hard drive has the following specifications: Nominal Capacity Sector size: Guaranteed Sectors: Rotational speed: Sustained transfer rate (max): 59MB/s (1MB- 100 bytes) Average seek time (typical)8.5ms (read) /9ms (write) 2TB (ITB 1012 bytes) 4096 byte:s 488,378,646 5900 RPM The hard drive is formatted with a file system that has a block size of 32kB (32,768 bytes) and currently contains 125,000 files of various sizes which occupy 30,000,000 data i) What is the average access time when reading from the disk? (Show your working.) (2 marks) ii) Within the blocks that are currently allocated to files, how much space (in bytes) is wasted (i.e. not being used to store file data)? (Show your working.) (2 marks) (a) The Seagate Pipeline HD SATA ST2000VM003 hard drive has the following specifications: Nominal Capacity Sector size: Guaranteed Sectors: Rotational speed: Sustained transfer rate (max): 59MB/s (1MB- 100 bytes) Average seek time (typical)8.5ms (read) /9ms (write) 2TB (ITB 1012 bytes) 4096 byte:s 488,378,646 5900 RPM The hard drive is formatted with a file system that has a block size of 32kB (32,768 bytes) and currently contains 125,000 files of various sizes which occupy 30,000,000 data i) What is the average access time when reading from the disk? (Show your working.) (2 marks) ii) Within the blocks that are currently allocated to files, how much space (in bytes) is wasted (i.e. not being used to store file data)? (Show your working.) (2 marks)
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