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| Success: USB HDD 300GB |
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Fri, 25 Nov 2005 01:32:28 +010 |
As there have been some questions around about
USB HDD, here are my results with my new backup disk.
USB HDD:
TrekStor DataStation y.uh 300GB USB 2.0
Mainboard chipset: (Athlon64)
VIA K8T800, southbridge VT8237
Driver/kernel revisions:
USBD.ADD 10.158
USBMSD.ADD 10.145
FAT32.IFS 0.9.10 (from Netlabs)
OS/2 kernel 14.103a_W4
Problems:
The drive was preformatted with FAT32 in one primary
partition. Initially I couldn't use it on eCS but on WinXP.
I couldn't even delete the partition in LVM (option grayed out).
So I booted to XP and removed the partition and created
a new extended partition with 3 logical partitions:
180GB, 60GB, 45GB (the rest)
I formatted the 180GB partition with NTFS on XP. Then
I booted eCS 1.15 again, and plugged the disk in. It
was immediately attached and all 3 partitions got a drive
letter. Then I started LVM, deleted the 60GB and the 45GB
partitions (now it was possible) and recreated them as
LVM volumes. I closed LVM saving the changes.
Afterwards I formatted the two volumes with JFS and copied
some files to them. Everything works fine.
I also tried to attached the NTFS partition and had success.
Performance tests:
I wanted to know what transfer speed is available with
eCS and WinXP. For eCS I used Sysbench 0.9.5.
Disk I/O disk 39-5: 286166 MB - Unknown disk
Avg. data access time : 15.100 milliseconds
Cache/Bus xfer rate : 14.815 Megabytes/second
Track 0 xfer rate fwd : 14.820 Megabytes/second
Middle trk rate fwds. : 14.805 Megabytes/second
Last track rate bwds. : 14.170 Megabytes/second
Average Transfer rate : 14.598 Megabytes/second
Disk use CPU load : 9.620 percent
-----------------------------------------------------------------------
Total : 83.094 Disk I/O-marks
This is acceptable for backups (much faster than my DVD-RAMs).
WinXP performed quite a bit faster. It reached around 27 MB/sec.
So there seems to be still room for improvements in the USB drivers.
Finally I can fully make use of the 300GB.
Hope this information is of value.
Heiko
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| Post Reply
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| Re: Success: USB HDD 300GB |
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Fri, 25 Nov 2005 06:38:33 GMT |
On Fri, 25 Nov 2005 00:32:28 UTC Heiko Nitzsche
<hn-expires-31-dec-05@arcor.de> wrote:
> As there have been some questions around about
> USB HDD, here are my results with my new backup disk.
>
> USB HDD:
> TrekStor DataStation y.uh 300GB USB 2.0
>
> Mainboard chipset: (Athlon64)
> VIA K8T800, southbridge VT8237
>
> Driver/kernel revisions:
> USBD.ADD 10.158
> USBMSD.ADD 10.145
> FAT32.IFS 0.9.10 (from Netlabs)
> OS/2 kernel 14.103a_W4
>
> Problems:
> The drive was preformatted with FAT32 in one primary
> partition. Initially I couldn't use it on eCS but on WinXP.
> I couldn't even delete the partition in LVM (option grayed out).
> So I booted to XP and removed the partition and created
> a new extended partition with 3 logical partitions:
> 180GB, 60GB, 45GB (the rest)
>
> I formatted the 180GB partition with NTFS on XP. Then
> I booted eCS 1.15 again, and plugged the disk in. It
> was immediately attached and all 3 partitions got a drive
> letter. Then I started LVM, deleted the 60GB and the 45GB
> partitions (now it was possible) and recreated them as
> LVM volumes. I closed LVM saving the changes.
> Afterwards I formatted the two volumes with JFS and copied
> some files to them. Everything works fine.
> I also tried to attached the NTFS partition and had success.
>
> Performance tests:
> I wanted to know what transfer speed is available with
> eCS and WinXP. For eCS I used Sysbench 0.9.5.
>
> Disk I/O disk 39-5: 286166 MB - Unknown disk
> Avg. data access time : 15.100 milliseconds
> Cache/Bus xfer rate : 14.815 Megabytes/second
> Track 0 xfer rate fwd : 14.820 Megabytes/second
> Middle trk rate fwds. : 14.805 Megabytes/second
> Last track rate bwds. : 14.170 Megabytes/second
> Average Transfer rate : 14.598 Megabytes/second
> Disk use CPU load : 9.620 percent
>
-----------------------------------------------------------------------
> Total : 83.094 Disk I/O-marks
>
> This is acceptable for backups (much faster than my DVD-RAMs).
> WinXP performed quite a bit faster. It reached around 27 MB/sec.
> So there seems to be still room for improvements in the USB drivers.
>
> Finally I can fully make use of the 300GB.
I've got a similar problem with a thumb drive formatted FAT32. I'm
pretty sure that part of the problem comes from the FAT32 IFS driver
plus an LVM issue with FAT32 and no usable IFS. Works fine with HPFS,
NTFS, and FAT16 so the problem is isolated to USB with FAT32.
--
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| Post Reply
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| Re: Success: USB HDD 300GB |
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Fri, 25 Nov 2005 07:42:25 GMT |
On Fri, 25 Nov 2005 06:38:33 UTC, "Will Honea"
<whonea@yahoo.com>
wrote:
> I've got a similar problem with a thumb drive formatted FAT32. I'm
> pretty sure that part of the problem comes from the FAT32 IFS driver
> plus an LVM issue with FAT32 and no usable IFS. Works fine with HPFS,
> NTFS, and FAT16 so the problem is isolated to USB with FAT32.
The documentation I have for FAT32 say that it does not support
removable media. I think that it may work with removable media if you
have a FAT32 partition on your hard drive so that the FAT32 driver
gets initialized properly.
--
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| Post Reply
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| Re: Success: USB HDD 300GB |
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Sun, 27 Nov 2005 15:20:15 +010 |
> I've got a similar problem with a thumb drive formatted FAT32. I'm
> pretty sure that part of the problem comes from the FAT32 IFS driver
> plus an LVM issue with FAT32 and no usable IFS. Works fine with HPFS,
> NTFS, and FAT16 so the problem is isolated to USB with FAT32.
Just to prevent misunderstanding, I didn't actually try
FAT32 IFS (0.9.10) again after creating the new logical
volumes. So I don't know whether it works or not.
The initial 300GB primary partition was detected as FAT32
partition by LVM and also a drive letter has been assigned.
But the drive showed only 30GB free space and the file that
was on the partition was invisible. So the FAT32 IFS might
have a size limit of around 250-260GB.
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