Access time
Seek Time : Time taken to position the
head at the track
Rotational Delay : Time
taken for the beginning of the sector to reach the head
Access Time : Sum of the seek time and
the rotational delay
Transfer Time : Time required for data transfer
portion of the operation
Queuing Delay : Time
required to wait in a queue for device in I/O operation to be available
Average Access Time = Seek Time + Rotational Delay + Transfer
Time + Queuing Delay
Semua keperluan ini adalah berdasarkan ‘hard disk
specification’
. Untuk mendapatkan ‘Average Access Time ‘yang betul ,
tukarkan semua unit kepada unit yang sama seperti, ‘ms’ .
By :
Ikhmal
Yazid
B031210153
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