Calculate the number of file blocks b needed to store

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Question: Consider a disk with the following characteristics (these are not parameters of any particular disk unit): block size B = 512 bytes; interblock gap size G = 128 bytes; number of blocks per track = 20; number of tracks per surface = 400. A disk pack consists of 15 double-sided disks. The TRANSACTIONS file has r = 2000 records. TRANSACTIONS are 30% rent payments, 30% AMENITIES purchases with an average of 2 AMENITIES being purchased in a TRANSACTION, and 40% loans of equipment for a fee. In addition to the size and type of a record you estimated above, there is an additional byte added to each record which is used as a deletion marker. The file is stored on the disk whose parameters are given above. a. Recalculate the record size R in bytes. b. Calculate the blocking factor bfr and state in English what the number represents for this type of record. c. Calculate the number of file blocks b needed to store the file, assuming a spanned organization. d. Calculate the file size r in bytes. e. Calculate the unused space in b. f. If the TRANSACTIONS file grows

Reference no: EM133694889

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