Hi,
I've got a problem with my Maxtor 500GB USB2.0 external harddrive containing one big ReiserFS partition. This drive is fixed, so I can only attach it via USB. Power is pulled from an external brick.
Writing to this disk does not pose any problems. Reading however results in strange behavior.
After I copied a few hundred MB, sometimes a few ten MB or even GB off it, copying completely stops for almost exactly 60 seconds only to resume again afterwards. It just sits there fiddling thumbs and waiting for a timeout of some kind (presumably).
<data(random duration)> - <60 sec pause> - <data(random duration)> - <60 sec pause> etc.
This causes a few services like Samba to time out, making copying off that drive from another PC a pain in the butt.
My board is an Asus A7V333-X using the latest BIOS with the device attached to this onboard USB controller
Code:
#lspci
00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82)
The harddrive:
Code:
#lsusb
Bus 001 Device 004: ID 0d49:3200 Maxtor
I'm using Gentoo running on the
2.6.23-gentoo-r3 kernel.
2.6.22-gentoo-r8, which I used before, displayed the same issue.
This device is said to work flawlessly (See
here and
here)
This comes up regarding this disk during boot
Code:
#dmesg
scsi 3:0:0:0: Direct-Access Maxtor 3200 0344 PQ: 0 ANSI: 4
sd 3:0:0:0: [sdg] 976773168 512-byte hardware sectors (500108 MB)
sd 3:0:0:0: [sdg] Write Protect is off
sd 3:0:0:0: [sdg] Mode Sense: 17 00 00 00
sd 3:0:0:0: [sdg] Assuming drive cache: write through
sd 3:0:0:0: [sdg] 976773168 512-byte hardware sectors (500108 MB)
sd 3:0:0:0: [sdg] Write Protect is off
sd 3:0:0:0: [sdg] Mode Sense: 17 00 00 00
sd 3:0:0:0: [sdg] Assuming drive cache: write through
sdg: sdg1
sd 3:0:0:0: [sdg] Attached SCSI disk
and during mount
Code:
#dmesg
ReiserFS: sdg1: found reiserfs format "3.6" with standard journal
ReiserFS: sdg1: using ordered data mode
ReiserFS: sdg1: journal params: device sdg1, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
ReiserFS: sdg1: checking transaction log (sdg1)
ReiserFS: sdg1: Using r5 hash to sort names
These messages pop up at the beginning and end of the 60 sec period:
Code:
#dmesg
usb 1-6: reset high speed USB device using ehci_hcd and address 4
I searched for that error on different forums/Google. I found others having the same problem. Many suggested to do this
Code:
echo 64 >/sys/block/sdg/device/max_sectors
I did to no avail. Other values didn't work either
Another suggestion was to mount the drive using the
sync option. This also did not work for me
Any ideas?
