I have upgraded to the SL 6.1 release except for the use of a later
kernel than that which is provided in 6.1 -- kernel 2.6.38 .
I have now obtained Hitachi 1.5 Gbyte SATA drives (HITACHI Deskstar
7K3000 HDS723015BLA642 (0F12114) 1.5TB 7200 RPM SATA 6.0Gb/s 3.5"
Internal Hard Drive -Bare Drive) and used these in a USB 3 external SATA
disk docking station (Thermaltake
BlackX Duet 5G) that was displaying SUPERSPEED (i. e., USB 3
connectivity at USB 3 nominal data rates). Unlike the Western Digital
drives that would not dd because the WD 512e emulation appears
defective, these work fine, also establishing that the USB 3 hardware
and kernel driver is (fully) functional. I am a bit disappointed in
the actual USB 3 throughput: 8.5 MB/s according to dd, with much of
time the cloning machine had no load (I was not using it other than for
dd -- although X11 and gnome, along with a variety of daemons were
present). top was showing very little memory use and a combined (over
all cores) CPU fractional use for dd of about 0.2 (20 percent). Note
that I only sampled with top -- it was not active during most of the
cloning.
I reproduce below the typescript of dd as well as terminal use of fdisk
and mount to establish that USB 3 is functional. I will now use parted
3.0 to readjust the partitions on the cloned drive, and then clone again
from the clone to the next target.
Script started on Mon 01 Aug 2011 05:38:06 PM PDT
ESC]0;ykarant@jb344:/home/ykarant^GESC[?1034h[root@jb344 ykarant]# dd
if=/dev/sda of=/dev/sde
1250263728+0 records in
1250263728+0 records out
640135028736 bytes (640 GB) copied, 75463.5 s, 8.5 MB/s
ESC]0;ykarant@jb344:/home/ykarant^G[root@jb344 ykarant]# exit
exit
Script done on Tue 02 Aug 2011 02:46:05 PM PDT
[root@jb344 ykarant]# fdisk /dev/sde
WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
switch off the mode (command 'c') and change display units to
sectors (command 'u').
Command (m for help): p
Disk /dev/sde: 1500.3 GB, 1500301910016 bytes
255 heads, 63 sectors/track, 182401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x706a2c16
Device Boot Start End Blocks Id System
/dev/sde1 * 1 32 257008+ 83 Linux
/dev/sde2 33 12780 102398310 83 Linux
/dev/sde3 12781 25528 102398310 83 Linux
/dev/sde4 25529 77825 420075652+ 5 Extended
/dev/sde5 25529 38276 102398278+ 83 Linux
/dev/sde6 38277 43375 40957686 83 Linux
/dev/sde7 43376 48474 40957686 83 Linux
/dev/sde8 48475 53573 40957686 83 Linux
/dev/sde9 53574 58672 40957686 83 Linux
/dev/sde10 58673 58927 2048256 82 Linux swap / Solaris
/dev/sde11 58928 60801 15052873+ 83 Linux
/dev/sde12 60802 77825 136745248+ 83 Linux
/dev/sde11 on /media/_usr11 type ext2 (rw,nosuid,nodev,uhelper=udisks)
/dev/sde8 on /media/_opt1 type ext2 (rw,nosuid,nodev,uhelper=udisks)
/dev/sde6 on /media/_vmware type ext2 (rw,nosuid,nodev,uhelper=udisks)
/dev/sde7 43376 48474 40957686 83 Linux
/dev/sde8 48475 53573 40957686 83 Linux
/dev/sde9 53574 58672 40957686 83 Linux
/dev/sde10 58673 58927 2048256 82 Linux swap / Solaris
/dev/sde11 58928 60801 15052873+ 83 Linux
/dev/sde12 60802 77825 136745248+ 83 Linux
/dev/sde11 on /media/_usr11 type ext2 (rw,nosuid,nodev,uhelper=udisks)
/dev/sde8 on /media/_opt1 type ext2 (rw,nosuid,nodev,uhelper=udisks)
/dev/sde6 on /media/_vmware type ext2 (rw,nosuid,nodev,uhelper=udisks)
/dev/sde7 on /media/_usr_local type ext2 (rw,nosuid,nodev,uhelper=udisks)
/dev/sde12 on /media/88b09855-c009-4cbd-b055-5bda1ec6d432 type ext2
(rw,nosuid,nodev,uhelper=udisks)
/dev/sde5 on /media/167ee03e-960b-4c7e-8aba-b62f49d13834 type ext2
(rw,nosuid,nodev,uhelper=udisks)
/dev/sde1 on /media/9aaab62a-50eb-4a36-a95c-02ed44d27881 type ext2
(rw,nosuid,nodev,uhelper=udisks)
/dev/sde3 on /media/_home1 type ext2 (rw,nosuid,nodev,uhelper=udisks)
/dev/sde9 on /media/68cc9e91-1115-4eeb-8e55-bf0f22f6ac26 type ext2
(rw,nosuid,nodev,uhelper=udisks)
/dev/sde2 on /media/848f55af-9e8c-4f46-bf62-5fd2eb577eb6 type ext2
(rw,nosuid,nodev,uhelper=udisks)
Yasha Karant
