Coerced Cache Eviction and Discreet Mode Journaling: Dealing with Misbehaving Disks

Coerced Cache Eviction and Discreet Mode Journaling: Dealing with Misbehaving Disks

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by Abhishek Rajimwale , Vijay Chidambaram , Deepak Ramamurthi , Andrea C. Arpaci-dusseau , Remzi H. Arpaci-dusseau

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Datum	Value	Source
TITLE	Coerced Cache Eviction and Discreet Mode Journaling: Dealing with Misbehaving Disks	SVM HeaderParse 0.2
AUTHOR NAME	Abhishek Rajimwale	SVM HeaderParse 0.2
AUTHOR AFFIL	Data Domain, Inc.; Computer Sciences Department, University of Wisconsin–Madison	SVM HeaderParse 0.2
AUTHOR NAME	Vijay Chidambaram	SVM HeaderParse 0.2
AUTHOR AFFIL	Data Domain, Inc.; Computer Sciences Department, University of Wisconsin–Madison	SVM HeaderParse 0.2
AUTHOR NAME	Deepak Ramamurthi	SVM HeaderParse 0.2
AUTHOR AFFIL	Data Domain, Inc.; Computer Sciences Department, University of Wisconsin–Madison	SVM HeaderParse 0.2
AUTHOR NAME	Andrea C. Arpaci-dusseau	SVM HeaderParse 0.2
AUTHOR AFFIL	Data Domain, Inc.; Computer Sciences Department, University of Wisconsin–Madison	SVM HeaderParse 0.2
AUTHOR NAME	Remzi H. Arpaci-dusseau	SVM HeaderParse 0.2
AUTHOR AFFIL	Data Domain, Inc.; Computer Sciences Department, University of Wisconsin–Madison	SVM HeaderParse 0.2
ABSTRACT	a new method to force writes to disk in the presence of a disk cache that does not properly obey write-cache configuration or flush requests. We demonstrate the utility of CCE by building a new journaling mode within the Linux ext3 file system. When mounted in this discreet mode, ext3 uses CCEs to ensure that writes are properly ordered and thus maintains file system integrity despite the presence of an improperly behaving disk. We show that discreet mode journaling operates with acceptable overheads for most workloads. Keywords-file systems; disks; journaling; reliability. I.	SVM HeaderParse 0.2
CITATIONS	39 found	ParsCit 1.0