Item 1: Automatically detection of silent data corruption
Date: 1. september 2006
Origin: Jesper Krogh <[EMAIL PROTECTED]>
Status: Unimplemented.
What: Detect silent data-corruption automatically.
When a full backup are performed there is (when configured so)
put checksums into the catalog. These checksums can be used to
detect silent corruption of data when the subsequent full
backup is performed by comparing the checksum with the newly
read files if the metadata of the file hasn't been updated
since last full backup. The performance cost would be next to
zero since all data is read and checksummed anyway.
Why: A verification of diskdata is a very time/performnce comsuming
process especially on "large disks". This would be a
"shortcut" to get a nearly as good feature to detect silent
data corruption.
Notes: The idea came up when our 1TB disk went down with SCSI-errors
and the time didnt allow us to make a check.
--
Jesper Krogh, [EMAIL PROTECTED]
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