AMITIAE - Thursday 22 January 2015
Cassandra: Comparing Hard Disk Failure Rates - Link to Article
By Graham K. Rogers
A useful comparison of hard disk failures, by Brian Beach of Backblaze shows a number of interesting comparisons, both in tabel form and with comments. The article is useful because this comes from a backup service that has "41,213 disk drives spinning in our data center" - providing an unlimited backup service. Clearly it is of concern to an operator of such an operation to find the best disks.
Seagate appears to be the best of disks and the worst of disks, with the Seagate 6 TB SATA 3.5 showing a 0% annual failure rate, while the Barracuda 7200.11 and 7200.14 had failure rates of 23.5% and 43.1% respectively. HGST, Toshiba and Western Digital fared better.
Chart from Brian Beach Backblaze
Graham K. Rogers teaches at the Faculty of Engineering, Mahidol University in Thailand where he is also Assistant Dean. He wrote in the Bangkok Post, Database supplement on IT subjects. For the last seven years of Database he wrote a column on Apple and Macs. He is now continuing that in the Bangkok Post supplement, Life.
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