> are there any experiences regarding 1TB USB drives on OS/2? > LVM reports a corrupt partition table and only 512 MB free HD-space.
> Thanks in advance > Michael
I had a similar result when I tried to install eCS on a new HP Pavilion with a 640GB drive. After a bit of floundering about, I sent email to Dani, and she replied that OS/2 can handle drives over 512GB provided that only OS/2 tools are used to partition the drive.
The basic problem is that there are kernel API calls that use CHS addressing that limit addressable space to 512GM with the usual geometry.
If you start of with a completely blank drive, LVM will initialize it using nonstandard geometry that circumvents the problem. However with LVM (at least the version that I have), you only get one kick at the can. In one run you can create as many partitions and volumes as you want; but once you have LVM commit changes and exit, any subsequent invocation of LVM reports that the partition table is corrupt and it refuses to commit any changes. The only operation that still does anything is change of drive letter. DFSee still works ok so all is not lost. It's been several months since this episode and I am not absolutely certain, but I think that we found that once you know the geometry that LVM wants to use, you can start with a blank drive and do everything from DFSee.
There are also some limitations if you need to use Windows. Windows will not boot from a partition on a drive with the OS/2 geometry. However windows will read and write from such a drive and sees the whole thing.
On 2009-03-26, Dr. Michael Holzapfel <michael.holzap...@arcor.de> wrote:
> Hi all,
> are there any experiences regarding 1TB USB drives on OS/2?
I still wait for my enclosure to use a large drive; however, with already a smaller size I was forced to use /CHS on USBMSD:
REM /CHS Driver calculates and adds Cylinder/Heads/Sectors values to REM device geometry. This key helps to support USB drives REM with capacity more than 40GB for systems with os2dasd driver REM without 512GB support and for non-lvm systems.
REM /MS10_OFF Driver avoids of using ModeSense10 command for geometry detection.
> LVM reports a corrupt partition table and only 512 MB free HD-space.
LVM is a can of worms. For much smoother USB operation, upgrade to FDISK-based configuration.
Hope this helps, Ilya
P.S. And you know about 512MB-limitation? You need either DANI, or dasd with a flag... (Do not know whether this is applicable to USB)
On Thu, 26 Mar 2009 21:07:04 UTC in comp.os.os2.setup.storage, "Dr. Michael
Holzapfel" <michael.holzap...@arcor.de> wrote: > Hi all,
> are there any experiences regarding 1TB USB drives on OS/2? > LVM reports a corrupt partition table and only 512 MB free HD-space.
There are fixes to os2dasd.dmd (at a minimum) and probably the IDE drivers and maybe LVM too. I recommend that you update to at least these levels
[X:\os2\boot]bldlevel os2dasd.dmd Build Level Display Facility Version 6.10.480 Oct 6 2000 (C) Copyright IBM Corporation 1993-2000 Signature: @#IBM:14.105#@ IBM DASD Manager Vendor: IBM Revision: 14.105 File Version: 14.105 Description: IBM DASD Manager
[X:\os2\boot]bldlevel danis506.add Build Level Display Facility Version 6.10.480 Oct 6 2000 (C) Copyright IBM Corporation 1993-2000 Signature: @#DANI:1.8#@##1## 12.5.2008 17:06:29 :::5::@@ Adapter Driver for PATA/SATA DASD Vendor: DANI Revision: 1.08 Date/Time: 12.5.2008 17:06:29 Build Machine: Nachtigall File Version: 1.8.5 Description: Adapter Driver for PATA/SATA DASD
[X:\os2\boot]bldlevel os2lvm.dmd Build Level Display Facility Version 6.10.480 Oct 6 2000 (C) Copyright IBM Corporation 1993-2000 Signature: @#IBM:14.105#@ IBM Logical Volume Manager Vendor: IBM Revision: 14.105 File Version: 14.105 Description: IBM Logical Volume Manager
Directory of X:\os2\dll
6-07-06 3:12p 170486 54 LVM.DLL
I am successfully using these with a 640GB RAID volume and have none of the problems that others describe. I can quite happily use LVM multiple times and it still looks fine every time.
-- Trevor Hemsley, Brighton, UK Trevor dot Hemsley at ntlworld dot com
Dr. Michael Holzapfel writes: > are there any experiences regarding 1TB USB drives on OS/2? > LVM reports a corrupt partition table and only 512 MB free HD-space.
I managed to get a 750 GB USB drive working with OS/2. Had to wipe the boot sector, which was probably set up for Windows and NTFS, but once that was done, nothing special was required.
I do have an older motherboard with two OHCD, one UHCD, and one EHCD. Sometime it seems as though the USB drive is running at USB 1.1 speed. If I plug a USB 2.0 device into the machine and then remove it, and then plug a different USB 2.0 device into the machine, is it supposed to get the one available high speed connection, or has the system "allocated" it to the first high-speed device that was plugged in?
tho...@antispam.ham wrote: > Dr. Michael Holzapfel writes:
>> are there any experiences regarding 1TB USB drives on OS/2? >> LVM reports a corrupt partition table and only 512 MB free HD-space.
> I managed to get a 750 GB USB drive working with OS/2. Had to wipe > the boot sector, which was probably set up for Windows and NTFS, but > once that was done, nothing special was required.
> I do have an older motherboard with two OHCD, one UHCD, and one EHCD. > Sometime it seems as though the USB drive is running at USB 1.1 speed. > If I plug a USB 2.0 device into the machine and then remove it, and > then plug a different USB 2.0 device into the machine, is it supposed > to get the one available high speed connection, or has the system > "allocated" it to the first high-speed device that was plugged in?
Are you confusing "connection" with Controller.
You have 1 USB2 Controller.
It *should* work with any USB2 device plugged into any USB port.
I did see something, somewhere about adjusting the speed of the USB2 Controller...
> [X:\os2\boot]bldlevel os2lvm.dmd > Build Level Display Facility Version 6.10.480 Oct 6 2000 > (C) Copyright IBM Corporation 1993-2000 > Signature: @#IBM:14.105#@ IBM Logical Volume Manager > Vendor: IBM > Revision: 14.105 > File Version: 14.105 > Description: IBM Logical Volume Manager
> Directory of X:\os2\dll
> 6-07-06 3:12p 170486 54 LVM.DLL
> I am successfully using these with a 640GB RAID volume and have none of the > problems that others describe. I can quite happily use LVM multiple times and it > still looks fine every time.
The latest os2dasd.dmd I found at ecomstation.com (lvm14105.exe) is 14.104 and my LVM.dll is 25.01.06 15.18 154.583 54 a--- LVM.DLL.
eCS2.0rc5 do have even older versions here.
Please can you give me a link where you find your newer version?
>> unfortunately i have no idea how to handle these files (to far away >> since i applied a fixpak by hand)
>> Michael > Have tried that, but arj says no arj archive :-( Maybe I try to download > again. I looked at eCS2.0rc6, but there are the 'old' file too.
> Email with zip of these files would be really appreciated :-)
try unarj x xr_c006.a0x after setting up the directory structure (fix\os2.1, etc.)
>> unfortunately i have no idea how to handle these files (to far away >> since i applied a fixpak by hand)
>> Michael > Have tried that, but arj says no arj archive :-( Maybe I try to > download again. I looked at eCS2.0rc6, but there are the 'old' file > too.
> Email with zip of these files would be really appreciated :-)
WinRAR on doze extracts them without problems
Robert -- Robert AH Prins robert dot ah dot prins on gmail
>>> unfortunately i have no idea how to handle these files (to far away >>> since i applied a fixpak by hand)
>>> Michael >> Have tried that, but arj says no arj archive :-( Maybe I try to >> download again. I looked at eCS2.0rc6, but there are the 'old' file >> too.
>> Email with zip of these files would be really appreciated :-)
> WinRAR on doze extracts them without problems
Last time I tried WinRAR ran fine on OS/2 using Odin Dave
> 2. Use of os2dasd.dmd, os2lvm.dmd and lvm.dll from xr_c006.
> 3. Use of latest danis506 (1.8.5)
> 4. Remove MBR and all former partitions via dfsee
> 5. Create new partition for JFS-use via dfsee
> 6. Format partition with format x: fs:/jfs
> Best regards > Michael
In the meantime I got my 1TB to work with my slightly older versions (14.104 os2dasd) by the following procedure - - wipe out boot sector with DFSee - reboot - do _NOT_ create a partion with DFSee 9.00 (not tested 9.15). DFSee 9.00 sees 1TB as long as the disk is empty, but after creating 1 partition it reports the disk size as 512GB - but create with lvmgui
As I have lvm traps sometimes (most often when starting) DFSee or lvm, I will update to xc_006 of course. Maybe that helps.
Throughput is only 4.5MByte/s on a JFS partition and 1.6MByte/s for FAT32 which is very slow compared to W2k-FAT32 which is 26.7MByte/s. Have to search for the USB patches I read and test again....
>> 2. Use of os2dasd.dmd, os2lvm.dmd and lvm.dll from xr_c006.
>> 3. Use of latest danis506 (1.8.5)
>> 4. Remove MBR and all former partitions via dfsee
>> 5. Create new partition for JFS-use via dfsee
>> 6. Format partition with format x: fs:/jfs
>> Best regards >> Michael
> Awesome! Thanks for taking the time to post this information. A 1TB > OS/2 JFS:formatted USB drive is a formidable tool.
Yeah. But personally, I'd want some redundancy with such a big chunk of data, so I decided to give the 1T of data to Linux, which provides a SW RAID 1 (mirror) for me, and access it via NFS.
