Q. The operating system typically provides the file abstraction on top of blocks stored on the disk, called

View solution

Q. When this effective error produces erroneous data that affect the delivered service, then

View solution

Q. RAID 0 has no redundancy and is sometimes nicknamed as

View solution

Q. Improvement in capacity; measured in bits per square inch, refered to

View solution

Q. A server utilization of 0.5, the mean number of I/O requests in the queue is

View solution

Q. The disks found inside a server connected to an I/O bus, is refered as

View solution

Q. The I/O bus limits the maximum performance to no more than 18,600 IOPS for 16 KB blocks, then the transfer time would be

View solution

Q. An innovation that improves both dependability and performance of storage systems is

View solution

Q. The average arrival rate of new tasks, and the average time to perform a task is:

View solution

Q. The sum of entry time, system response time and think time is known as

View solution

Q. If interarrival times are exponentially distributed, the number ofarrivals in a time interval t is a

View solution

Q. The Poisson distribution is described by the following equation (called the probability mass function):

View solution

Q. The area where the tasks accumulate, waiting to be serviced, is called the

View solution

Q. Data are allocated to disks in the RAID at the

View solution

Q. Average time/task in the system, or the response time, which is the sum of Time queue and Time server is

View solution

Q. In a RAID disk array, the logical unit is configured as a particular RAID layout, such as

View solution

Q. Redundant disk arrays have become known, by the acronym

View solution

Q. Throughput is the performance metric, but response times are

View solution

Q. The squared coefficient of variance, traditionally called

View solution

Q. One of the most widely used exponential distributions is called a

View solution