Parity Resynchronization using a Block-level Journaling for Software RAID

作者：

Highlights：

• The critical problem of the software RAID is intolerably long resynchronization time.

• We propose a new block-level journaling and a merged intent log.

• The proposed scheme has a short parity resynchronization time.

• It exhibits negligible performance degradation.

• We implemented the proposed scheme as a practical software RAID.

摘要

Highlights•The critical problem of the software RAID is intolerably long resynchronization time.•We propose a new block-level journaling and a merged intent log.•The proposed scheme has a short parity resynchronization time.•It exhibits negligible performance degradation.•We implemented the proposed scheme as a practical software RAID.

论文关键词：Secondary storage,Fault tolerance

论文评审过程：Received 7 November 2014, Revised 14 May 2015, Accepted 26 May 2015, Available online 5 June 2015, Version of Record 23 June 2015.

论文官网地址：https://doi.org/10.1016/j.is.2015.05.004