thanks for your quick help.
You point me in the correct direction. Non of "usual suspects" was the "point of failure". Cause anything should have (negative) effects to my BackupSource as well. (even the SATA-Link cause i use HatSwap-Bays...).
But this hint points me to hdparm and smartctl. My server is monitored by Munin every 5 Minutes. Only files who are that large, to need more than 5 Minutes got hit frequently... After turning off this monitoring i create a "valid" backup with 1.4T Data (needs nearly 12 hours with checks... so my ram should be fine
)
I guess my "consumer" HardDrives got problems if i put them to throughput-limit and query them frequently about their status
greetings
Raptor 2101
 -------- Original-Nachricht --------
 Datum: Sun, 17 Jul 2011 00:38:39 +0200 (CEST)
 Von: Maarten Bezemer <mcbrdiff < at > robuust.nl>
 An: "Christian Kölpin" <raptor2101 < at > gmx.de>
 CC: rdiff-backup-users < at > nongnu.org
 Betreff: Re: [rdiff-backup-users] Problems with missmatching hashes
Â
My first guess would be bad ram. Run memtest86+ for at least 12 hours (or
less if it reports problems, no point in testing bad ram for more errors).
Other things to check would be your power supply, the timings for cpu,
ram, and bus, or ide/sata cables and connections.
You could also try to find reports of other people getting corruption or
instability issues with your type of mainboard, chipset, ram, etc. I've
had timing issues with Via chipsets in the past, that didn't show up in
memtest, but got several faulty md5sums of a 100MB file when repeatedly
checking it. Underclocking the ram to match cpu core speed solved that
issue. (Happened consitently with several mainboards and several brands >of ram, my ram was fine...)
If you don't get memtest errors, report back here with some more info
about your hardware.
Memtest can be downloaded at: www.memtest.org
Hope this helps..
--
Maarten
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