Reliable cluster computing with a new checkpointing RAID-x architecture

Kai Hwang, Hai Jin, Roy Ho, Wonwoo Ro

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


In a serverless cluster of PCs or workstations, the cluster must allow remote file accesses or parallel I/O directly performed over disks distributed to all client nodes. We introduce a new distributed disk array, called the RAID-x, for use in serverless clusters. The RAID-x architecture is based on an orthogonal striping and mirroring (OSM) scheme, which exploits full-bandwidth and protects the system from all single disk failures. The performance of the RAID-x is experimentally proven superior to RAID-1 and NFS in the Linux cluster environment. We propose a new striped checkpointing scheme, leveraging on striped parallelism and pipelined writing of successive disk stripes. This RAID-x architecture greatly enhances the throughput, reliability, and availability of scalable clusters. It appeals especially to I/O-centric cluster applications.

Original languageEnglish
Pages (from-to)171-184
Number of pages14
JournalProceedings of the Heterogeneous Computing Workshop, HCW
Publication statusPublished - 2000

All Science Journal Classification (ASJC) codes

  • General Computer Science


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