On 05/03 05:50 , John Hudak wrote: > Interesting....what tests in bonnie++ did you run? > DB access to a single file? > Create/write/delete small files? > Others?
Probably just create/read/rewrite many small files. > Just curious, so you beat the disk senseless with bonnie++ for a day, and if > the drive does not fail, when put into service, how long does it last (based > on your experience)? The ones that survived haven't died yet. :) I just use them for occasional archival storage tho; so they hardly ever run now. > How was this one day duration arrived? based on when I got bored. :) I had some disks die after 9 or 12 hours. If it lasted longer than that, it was likely to last the 2 days or so that I ran the longest tests. > (The implication is that if the drive survived the test for one day, you can > rule out infant mortality, and expect the disk to last to meet the mfg > MTTF?) pretty much. they mostly seemed to die within 9-12 hours. It should be noted that my sample size was not statistically significant. Perhaps 7 different disks in 5-6 different enclosures. Don't remember anymore. Was 4-5 years ago. > I have read several anecdotal articles that concluded USB and FW disks in > their own enclosure have a higher probability of infant > mortality....unfortunately they weren't tested in a scientific manner.... My tests were far from scientific, and the plural of anecdote is not data. -- Carl Soderstrom Systems Administrator Real-Time Enterprises www.real-time.com ------------------------------------------------------------------------------ _______________________________________________ BackupPC-users mailing list [email protected] List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
