A case for redundant arrays of inexpensive disks (RAID)
SIGMOD '88 Proceedings of the 1988 ACM SIGMOD international conference on Management of data
An evaluation of redundant arrays of disks using an Amdahl 5890
SIGMETRICS '90 Proceedings of the 1990 ACM SIGMETRICS conference on Measurement and modeling of computer systems
The design and implementation of a log-structured file system
ACM Transactions on Computer Systems (TOCS)
Floating parity and data disk arrays
Journal of Parallel and Distributed Computing - Special issue on parallel I/O systems
Virtual log based file systems for a programmable disk
OSDI '99 Proceedings of the third symposium on Operating systems design and implementation
VLDB '88 Proceedings of the 14th International Conference on Very Large Data Bases
Parity Striping of Disk Arrays: Low-Cost Reliable Storage with Acceptable Throughput
VLDB '90 Proceedings of the 16th International Conference on Very Large Data Bases
DSN '02 Proceedings of the 2002 International Conference on Dependable Systems and Networks
On the effectiveness of buffered and multiple arm disks
ISCA '78 Proceedings of the 5th annual symposium on Computer architecture
A comparison of file system workloads
ATEC '00 Proceedings of the annual conference on USENIX Annual Technical Conference
Engineering design of a disk storage facility with data modules
IBM Journal of Research and Development
What is the future of disk drives, death or rebirth?
ACM Computing Surveys (CSUR)
Why specialized disks for composite operations may be unnecessary
ACM SIGARCH Computer Architecture News
Challenges in storing multimedia data for the future: an overview
MMM'12 Proceedings of the 18th international conference on Advances in Multimedia Modeling
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In this paper, we present a dual actuator logging disk architecture to minimize write access latencies. We reduce small synchronous write latency using the notion of logging writes, i.e. writing to free sectors near the current disk head location. However, we show through analytic models and simulations that logging writes by itself is not sufficient to reduce write access latencies, particularly in environments with writes to new data and intermixed reads and writes. Therefore, we augment the logging write method with the addition of a second disk actuator. Our models and simulations show that the addition of the second actuator offers significant performance benefits over a normal disk over a wide range of disk access patterns, and comparisons to strictly logging disk architectures show advantages over a range of disk access patterns.