Could drbd randomly flip bits? Was: Database page corruption on disk occurring during mysqldump on a fresh database and Was: Spontaneous development of supremely large files on different ext3 filesystems
mvolaski at aecom.yu.edu
Mon Sep 17 22:47:33 UTC 2007
I guess I will watch it closely for now and if it trips up again
failover to the drbd peer and see what happens there. I suppose I
could even deattach the local disks and have it run using the peer
over the wire. That should eliminate the local I/O subsystem.
>>It's kind of scary there is no end-to-end parity implemented
>>somewhere along the whole data path to prevent this. It sort of
>>defeats the point of RAID 6 and ECC.
>I agree, it's pretty damn scary. You can read about the story and
>the ensuing discussion here:
I wonder if drbd could help out with that.
>Interesting. I hadn't heard of such a thing until I just looked it
>up. But in any case that adds yet another variable (and a fairly
>uncommon one) to the mix.
It's this one: http://www.acnc.com/02_01_jetstor_sata_416s.html. I
thought units like it are very popular.
Maurice Volaski, mvolaski at aecom.yu.edu
Computing Support, Rose F. Kennedy Center
Albert Einstein College of Medicine of Yeshiva University
More information about the Ext3-users