taii...@gmx.com wrote: > Here are some theories. > > * You gotta properly align the sectors for 4K advanced format > * USB doesn't have NCQ which really slows things down. > * Copying many small files is almost always slow since they are located > on various parts of the drive not in a contiguous block (again see NCQ) > * System is set to use IDE not AHCI thus no NCQ etc > * You are using a secondary SATA chip such as the terrible ones from > JMicron or what not instead of what is on your systems northbridge or a > quality PCI-e HBA. > >
Googled to see how to find out if it is aligned correctly and found this. root@fireball / # cat /sys/block/sdb/queue/physical_block_size 4096 root@fireball / # I thought cgdisk did that automatically so I guess it did. Drive is currently connected to my motherboard's Sata port. If it was a bad/cheap controller, I'd think the other drives would also give slow speeds. They work fine. While I have a Sata PCI-e card installed, I'm not using it yet. It has a Marvel chipset which others say works fine. Once I get some more power cables in, I'll test it to see how it does. At this point tho, all drives are connected to the Gigabyte Sata ports. Sorry if that caused confusion. It seems we can eliminate some possible problems at least. I need more ideas to check on it seems. Still, I may dd the thing, at least the first bit of it anyway, and start again. I did repartition and format the drive after the move tho. Still, maybe dd-ing it for a fresh start will help. At this point, I don't need the data on it. I can redo whatever until I get it working correctly. Thanks for the ideas. Dale :-) :-)
