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From: SourceForge.net <no...@so...> - 2004-03-30 20:02:49
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Read and respond to this message at: https://sourceforge.net/forum/message.php?msg_id=2499152 By: nobody Szaka, 1) Network traffic does not seem to affect this. 2) I did smbmount with lfs option ntfsclone -o /mnt/l/test.img /dev/hda1 I see a 25 second delay at 0.65% complete. Then I see another delay at 7.40% complete, and after 30 seconds it fails. During these two delays, the hard drive light at the remote (destination) PC is continuously on (a detail I hadn't noticed before!). 3) The same thing happens when the output file is on either of two different shares on the remote PC, which happen to be on two different physical drives. So, although I have not defragged the remote PC, the fact that I get delays at the same place on two different drives leads me to believe it's not related to fragmentation on the remote. 4) Same test as test (2), plus on the remote PC, I also perform a copy of a large (2GB) file from one drive to the other. This produces a lot of interferring I/O requests on the remote PC. In this case, I get a 30 second delay and failure at the 0.65% completion point. 5) If I delete the pagefile.sys on the local PC, and then repeat, I get a delay at 0.86% complete, 30 seconds delay and then failure. So while again I have not defragged the local PC, the problem does seem to be related to file layout on the local PC. My guess interpretation of this is that when ntfsclone performs a "go to position" operation that is a large skip, the ntfs driver on the remote PC must physically write zeros to all those skipped blocks. If this operation takes longer than 30 seconds, something (probalby in smbfs) times out. It's not clear to me that this can be easily fixed. You probably don't want to increase the time-out limit, because 30 seconds is alreay a very long timeout for normal operations. Perhaps ntfsclone could make its jumps in smaller chunks, waiting for ackowledgement. Hope this helps, Trey ______________________________________________________________________ You are receiving this email because you elected to monitor this forum. To stop monitoring this forum, login to SourceForge.net and visit: https://sourceforge.net/forum/unmonitor.php?forum_id=44085 |
