On Sat, 20 Mar 2004, Dariusz Bandzarewicz wrote: > Hi > I just traing to use external hd enclosure with my linux box with kernels > 2.4.26-pre3 and 2.6.5-rc1-bk3. > I found that setting > .use_clustering=FALSE, > and > max_sectors =128 > (or less) improve stability of transfer to this usb enclosure (build on > genesys gl811e).
I really don't know what the effect of use_clustering is. Experience has shown (and so have traces from Windows) that max_sectors = 128 is necessary. > In both kernels I can succesfuly transfer data (I test 5x700MB files)to and > from harddisk with fat32 partition. But when I created EXT2 partitin > transfer to hdd stoped on first file and gl811 seems to hang. That is truly weird. I can't think of any reason why one should work and the other fail. > It is true for both kernels with modifications of use_clustering and > max_sectors. Any differences betwen kernels are in speed - old kernel data > transfer is r/w~3MB/s and in 2.6.5... write=~12MB/s read=~4MB/s (??) to > fat32 partition. > When I transfer files to fat32 red led is blinking ~5/s and when copy files > to ext2 iseems to light without blinking That could be a result of the Genesys interface crashing. > Darek > > PS. sorry for my english :) Believe me, it's a lot better than my Polish! Alan Stern ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
