On Fri, 2004-09-10 at 11:52, Junfeng Yang wrote: > On Fri, 10 Sep 2004, Dave Kleikamp wrote: > > > I'm confused as to how only those sectors get written to disk, but not > > sectors 2 and 4. How are you monitoring this? > > Thanks for the reply. > > We have a tool that can permute all the sector level writes and check for > inconsistencies. Our assumption is that the disk sector may go bad and be > remapped automatically, so even if the sector numbers are sequential, the > sectors may not be adjacent on the disk. that implies sectors can be > written out of order. is our assumption correct?
I guess that is possible, but I don't see any practical way of safeguarding against this. At least not without redefining the format of the log page to include a checksum or something. I would assume that the possibility of seeing this behavior in a real-world situation is very small. I would need to be convinced that this could be a common enough occurrence to warrant a fix. -- David Kleikamp IBM Linux Technology Center _______________________________________________ Jfs-discussion mailing list [EMAIL PROTECTED] http://www-124.ibm.com/developerworks/oss/mailman/listinfo/jfs-discussion
