Tutorial Week 10
Questions
Q1: It has been suggested that the first part of each
UNIX file be kept in the same disk block as its i-node. What good
would this do?
Q2: Describe why log-structured file systems are
more robust than an i-node-based file system.
Q3: In what aspect of file system performance do log-structured file systems out perform i-node-based file systems? Why?
Q4:A device driver issues a request for a disk block to the disk
controller. The required disk block is not yet available to the
driver, what does a device driver typically do in this scenario?
Q5:Why might a system use interrupt driven I/O to manage
a single serial port, but polling I/O to manage a front-end processor,
such as a multiport serial card?
Q6: How might buffering improve disk write performance?