Boaz Harrosh, on 06/03/2010 08:09 PM wrote:
[Topic] How to not let pages change while in IO [Abstract] As seen in a long thread on the fsdvel scsi mailing lists. Lots of people have headaches and sleep less nights because individual pages can change while in IO and/or DMA. Though each one as slightly different needs, the mechanics look to be the same. People that care: - Mirror and RAID people that need on disk consistency. - Network storage that wants data checksum. - DIF/DIX people
- Load balancing MPIO clusters, where out of order execution of overlapping write requests for the changed pages can introduce a data corruption, which makes using Linux with load balancing MPIO clusters unsafe.
- ... I for one know nothing of the subject but am a RAID person and would like a solution that does not force me to copy the complete data load. Please lets get all the VM VFS and drivers people in one room and see if we can have a Linux solution to this problem Boaz -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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