FIXED SEE MY LAST POST BELOW

Hi,

We bought an Iomega Rev drive with 70GB capacity disks as our backup solution for work.
The drive is connected via a USB port to our server. When copying files to the drive it takes about half a minute to do 1 MB!

The server is running Mandriva 2007 with 2.6.17-5mdv and has a serial 160 GB SATA HD.

When mounting the drive on my laptop running the same OS and kernel, files transfer at the usual USB 2.0 speeds that I'm accustomed to.

I have plugged a thumbdrive into the same USB port on the server and it works at full speed so USB 2.0 seems to be working fine.

The device is recognised as /dev/sr0 on the laptop and the server and tailing /var/log/messages show that they use the same drivers. Below is a the message log extract from the server.


Mar 8 15:01:13 localhost kernel: Vendor: Iomega Model: RRD2 Rev: P076
Mar 8 15:01:13 localhost kernel: Type: CD-ROM ANSI SCSI revision: 00
Mar 8 15:01:13 localhost kernel: sr0: scsi3-mmc drive: 125x/125x caddy
Mar 8 15:01:13 localhost kernel: sr 14:0:0:0: Attached scsi generic sg1 type 5
Mar 8 15:01:38 localhost kernel: usb 5-4: USB disconnect, address 21
Mar 8 15:02:57 localhost kernel: usb 5-4: new high speed USB device using ehci_hcd and address 22
Mar 8 15:02:57 localhost kernel: usb 5-4: configuration #1 chosen from 1 choice
Mar 8 15:02:57 localhost kernel: scsi15 : SCSI emulation for USB Mass Storage devices
Mar 8 15:03:03 localhost kernel: Vendor: Iomega Model: RRD2 Rev: P076
Mar 8 15:03:03 localhost kernel: Type: CD-ROM ANSI SCSI revision: 00
Mar 8 15:03:03 localhost kernel: sr0: scsi3-mmc drive: 125x/125x caddy
Mar 8 15:03:03 localhost kernel: sr 15:0:0:0: Attached scsi generic sg1 type 5


Any ideas as to why file transfers are so slow on the server? Could it be something to do with the SATA HD being treated as a SCSI device?


Below is my lspci printout:


00:00.0 Host bridge: VIA Technologies, Inc. CN700/VN800/P4M800CE/Pro Host Bridge
00:00.1 Host bridge: VIA Technologies, Inc. CN700/VN800/P4M800CE/Pro Host Bridge
00:00.2 Host bridge: VIA Technologies, Inc. CN700/VN800/P4M800CE/Pro Host Bridge
00:00.3 Host bridge: VIA Technologies, Inc. PT890 Host Bridge
00:00.4 Host bridge: VIA Technologies, Inc. CN700/VN800/P4M800CE/Pro Host Bridge
00:00.7 Host bridge: VIA Technologies, Inc. CN700/VN800/P4M800CE/Pro Host Bridge
00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI Bridge
00:09.0 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet Controller (rev 03)
00:09.1 Ethernet controller: Intel Corporation 82546GB Gigabit Ethernet Controller (rev 03)
00:0f.0 IDE interface: VIA Technologies, Inc. VIA VT6420 SATA RAID Controller (rev 80)
00:0f.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 81)
00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 86)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8237 ISA bridge [KT600/K8T800/K8T890 South]
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60)
00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 78)
01:00.0 VGA compatible controller: VIA Technologies, Inc. UniChrome Pro IGP (rev 01)


Thanks,

Just a guess, but I am seeing multiple usb1.1s and only one usb2.0 controller. Just from your description it sounds like your HD is connecting on a 1.1 line. No idea why this would be. Via is known to do some strange stuff.

To the best of my knowledge all sata HD show up as SCSI devices.

Good Luck
Lazlow

Hi,

Fixed it. I saw from another post about USB hardrives that a guy had a similar problem and that when he manually mounted it the speeds were fine. I tried mount -t ext2 /dev/sr0 /mnt/rev and it works fine now! I guess I've got a problem in my /etc/fstab.

Cheers,