An innovation that improves both dependability and performance of storage systems is ______________
An innovation that improves both dependability and performance of storage systems is ______________
RAID 0 has no redundancy and is sometimes nicknamed as ___________
RAID 0 has no redundancy and is sometimes nicknamed as ___________
When this effective error produces erroneous data that affect the delivered service, then ______________
When this effective error produces erroneous data that affect the delivered service, then ______________
The disks found inside a server connected to an I/O bus, is refered as ____________
The disks found inside a server connected to an I/O bus, is refered as ____________
Adding the 0.1 ms ATA controller overhead means 0.2 ms to 0.5 ms per I/O, making the maximum rate per controller _____________
Adding the 0.1 ms ATA controller overhead means 0.2 ms to 0.5 ms per I/O, making the maximum rate per controller _____________
If interarrival times are exponentially distributed, the number ofarrivals in a time interval t is a ___________
If interarrival times are exponentially distributed, the number ofarrivals in a time interval t is a ___________
In the formula given: Probability(k) = e^ _____________
In the formula given: Probability(k) = e^ _____________
The average arrival rate of new tasks, and the average time to perform a task is ____________
The average arrival rate of new tasks, and the average time to perform a task is ____________
The network protocol stacks use about ______________
The network protocol stacks use about ______________
Average time/task in the system, or the response time, which is the sum of Time queue and Time server is ___________
Average time/task in the system, or the response time, which is the sum of Time queue and Time server is ___________
A server utilization of 0.5, the mean number of I/O requests in the queue is ___________
A server utilization of 0.5, the mean number of I/O requests in the queue is ___________
The Poisson distribution is described by the following equation (called the probability mass function): ____________
The Poisson distribution is described by the following equation (called the probability mass function): ____________
Server utilization (and, in this case, the mean number of tasks per server) is simply: ___________
Server utilization (and, in this case, the mean number of tasks per server) is simply: ___________
The operating system typically provides the file abstraction on top of blocks stored on the disk, called ______________
The operating system typically provides the file abstraction on top of blocks stored on the disk, called ______________
The sum of entry time, system response time and think time is known as ___________
The sum of entry time, system response time and think time is known as ___________
In a RAID disk array, the logical unit is configured as a particular RAID layout, such as ____________
In a RAID disk array, the logical unit is configured as a particular RAID layout, such as ____________
Data are allocated to disks in the RAID at the ____________
Data are allocated to disks in the RAID at the ____________
Improvement in capacity; measured in bits per square inch, refered to __________
Improvement in capacity; measured in bits per square inch, refered to __________
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 ___________
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 ___________
The area where the tasks accumulate, waiting to be serviced, is called the ___________
The area where the tasks accumulate, waiting to be serviced, is called the ___________