From: Boris <tl...@ya...> - 2008-10-28 19:15:10
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Hello Henry, According to http://www.nabble.com/Re%3A-asynchronous-cobd-as-default--p16040183.html setcobd=async doesn't change the speed 3 times. So I decided to use Partition0 instead of Partition1 and mount it with -loop option. But before that I formated NTFS partition (Partition1) as reiserfs and ran hdparm, dd, etc. The speed changed from 6MB/sec to 19-21MB/sec. I'm wondering why unmounted NTFS partition ( or rather a partition without an assigned letter ) is much slower than reiserfs partition ? Anyway now I'm quite happy with 20MB/sec. One more observation: when it was NTFS partition kernel complained about I/O error during the boot: end_request: I/O error, dev codb0, sector 78156160. The size of the partition is 78156162 sectors. I tried to dd the last sectors and got the same error at sector 78156160. Now I don't have that error with reiserfs. Just in case I made reiserfs a little bit smaller. Boris |