Hi,I am wondering if there is an option in SS to enable some checking to detect silent data corruption.
Form GNR I know that there is End-to-End integrity. So a checksum is stored in addition.
The background is that we are facing an issue where in some files (which have data replication = 2) the mmrestripefile is reporting, that one block is mismatching it's copy (the storage cluster is running SS without GNR). We have validated that the copied block is fine, but the original one is broken (and this is what is returned on read access). SS right now in our installation is unable to determine which is the correct one. Is there any option to enable this kind of feature in SS? If not, does it make sense to create an "IDEA" for it?
Stephan -- Stephan Graf Juelich Supercomputing Centre Phone: +49-2461-61-6578 Fax: +49-2461-61-6656 E-mail: [email protected] WWW: http://www.fz-juelich.de/jsc/ --------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------- Forschungszentrum Juelich GmbH 52425 Juelich Sitz der Gesellschaft: Juelich Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498 Vorsitzender des Aufsichtsrats: MinDir Volker Rieke Geschaeftsfuehrung: Prof. Dr.-Ing. Wolfgang Marquardt (Vorsitzender), Karsten Beneke (stellv. Vorsitzender), Dr. Astrid Lambrecht, Prof. Dr. Frauke Melchior --------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------
smime.p7s
Description: S/MIME Cryptographic Signature
_______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at gpfsug.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss_gpfsug.org
