Doubly Distorted Mirrors

Summary: Doubly distorted mirrors raise the physical writes per logical write to 3 but cut random-write cost to 1/3 of a read by hiding writes in rotational latency. Uses a non-safe write cache and still delivers ~135% TP1 gain with little recovery impact. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID: hf55a6f7c7c5d5b05
Venue: SIGMOD
Year: 1993
Pagerank: 6.1904725e-05
Overall Rank: 5,298 | 64.39%
DOI: 10.1145/170035.170082

Incoming Non-self Citations Over Time

Authors

1. Cyril U. Orji (Florida International University)
2. Jon A. Solworth (University of Illinois Chicago)

BibTeX Citation

@inproceedings{orji_sigmod93,
        title = {{Doubly Distorted Mirrors}},
        author = {Orji, Cyril U. and Solworth, Jon A.},
        series = {{SIGMOD} '93},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/170035.170082},
        url = {https://dl.acm.org/doi/10.1145/170035.170082},
        year = {1993}
}

Incoming Citations (Sorted by Pagerank)

Showing 2 of 2 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
401	A Case for Fractured Mirrors	2002	VLDB	0.00019108281
13,269	Hot mirroring: A method of hiding parity update penalty and degradation during rebuilds for RAID5	1996	SIGMOD	4.9793485e-05

Outgoing Citations (Sorted by Pagerank)

Showing 5 of 5 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank	Cited Paper	Year	Venue	Pagerank
7	Implementation Techniques For Main Memory Database Systems	1984	SIGMOD	0.00081992507
191	Data Placement In Bubba	1988	SIGMOD	0.00025700375
277	Disk Shadowing	1988	VLDB	0.00022316153
2,684	Parity Striping of Disc Arrays: Low-Cost Reliable Storage with Acceptable Throughput	1990	VLDB	8.1392334e-05
3,999	Write-Only Disk Caches	1990	SIGMOD	6.8623176e-05

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3	13,269	Hot mirroring: A method of hiding parity update penalty and degradation during rebuilds for RAID5	1996	SIGMOD
4	4,816	A Comparison Of High-Availability Media Recovery Techniques	1989	SIGMOD
5	8,116	Comparing Rebuild Algorithms for Mirrored and RAID5 Disk Arrays	1993	SIGMOD
6	3,999	Write-Only Disk Caches	1990	SIGMOD
7	277	Disk Shadowing	1988	VLDB
8	401	A Case for Fractured Mirrors	2002	VLDB
9	2,684	Parity Striping of Disc Arrays: Low-Cost Reliable Storage with Acceptable Throughput	1990	VLDB
10	7,125	Disk Mirroring with Alternating Deferred Updates	1993	VLDB