Same here. We have actually run into ECC issues before and it's a bloody nightmare when local files and backup files are overwritten with corrupt data. If you don't notice it in time (we noticed it after two days due to widely different MD5 checksums of backups) all of the data might be lost and if you are lucky, you will see some service go down (as a sort of warning) before it's too late.

And no, ZFS is not a guarantee here! (It can actually make it worse since it keep a ton of data in RAM)