Synchronized Disk Interleaving
IEEE Transactions on Computers
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 Multiple-Disk I/O Systems
IEEE Transactions on Computers
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
Asynchronous Disk Interleaving: Approximating Access Delays
IEEE Transactions on Computers
The Performance of Parity Placements in Disk Arrays
IEEE Transactions on Computers
Maximizing performance in a striped disk array
ISCA '90 Proceedings of the 17th annual international symposium on Computer Architecture
Efficient Placement of Parity and Data to Tolerate Two Disk Failures in Disk Array Systems
IEEE Transactions on Parallel and Distributed Systems
Proceedings of the Second International Conference on Data Engineering
RAID: High-Performance, Reliable Secondary Storage
RAID: High-Performance, Reliable Secondary Storage
Selecting RAID Levels for Disk Arrays
FAST '02 Proceedings of the 1st USENIX Conference on File and Storage Technologies
Selecting RAID levels for disk arrays
FAST'02 Proceedings of the 1st USENIX conference on File and storage technologies
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There is a growing demand in high reliability beyond what current RAID can provide and there are various levels of user demand for data reliability. An efficient data placement scheme called RM2 has been proposed in \cite{Park95}, which makes a disk array system tolerable against double disk failures. In this paper, we consider how to choose an optimal striping unit for RM2 particularly when no workload information is available except read/write ratio. A disk array simulator for RM2 has been developed for experimental works. It is shown that RM 2 has an optimal striping unit of two and half tracks in the case of disk read operations, and one third of a single track if any disk write operations are involved.