Robert Hancock wrote: > Matthias Schniedermeyer wrote: >> Hi >> >> >> I'm using a Bunch auf HDDs in USB-Enclosures for storing files. >> (currently 38 HDD, with a total capacity of 9,5 TB of which 8,5 TB is >> used) > > All the same enclosure type?
36x"Fantec (was MaPower) DB-335U2-1" with Genesys-Logic-Chipset (at least the model i used yesterday said that. I bought this 36 enclosures in the time from May/2005 - October/2006, so it is possible that they use different chipsets and/or revisions of the chipset) 2x"IOmega 33644" bought last week, with a Chipset that says it is from IOMega, but i guess it is just a rebranded. I have errors with all of them. I have a spare enclosure Fantec DB-35U2-2, AFAICT it uses a Cypress-Chipset which i haven't used for some time, so ATM i don't remember if i had it with this one too. >> This time i kept the defective files and used "vbindiff" to show me the >> difference. Strangly in EVERY case the difference is a single bit in a >> sequence of "0xff"-Bytes inside a block of varing bit-values that >> changed a "0xff" into a "0xf7". >> Also interesting is that each error is at a 0xXXXXXXX5-Position >> >> Attached is a file with 5 of the 6 differences named 1-5. Of each of the >> 5 2x3 lines-blocks the first 3 lines are the original the following 3 >> lines contain the error in the middle row 6th value. >> >> NEVER did i see any messages in syslog regarding erros or an aborting >> program due to errors passed down from the kernel or something like that. > > The fact that the corruption seems data dependent would seem to me to > point to some kind of hardware problem. I would tend to suspect the > USB-to-IDE converters in the enclosures as being faulty or something > like that.. > -- Real Programmers consider "what you see is what you get" to be just as bad a concept in Text Editors as it is in women. No, the Real Programmer wants a "you asked for it, you got it" text editor -- complicated, cryptic, powerful, unforgiving, dangerous. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/