WARNING: Host used command 0x1A which is affected by drive geometry.

[stephbb75]

Hi,
In the log I have this:
WARNING: Host used command 0x1A which is affected by drive geometry. Current settings are 63 sectors x 255 heads = 16065 but image size of 6144000 sectors is not divisible. This can cause error messages in diagnostics tools.

Indeed, this causes me problems for certain software.
I tested several file sizes but I still got this message.

What size file should we create to no longer get this message?
For example for 1GB, 2GB.

THANKS

[aperezbios]

The size of the image file has no bearing on whether or not the host computer issues this SCSI command. Thats up to the operating system. Can you share with us some further details on the environment with which you're using your ZuluSCSI? Thanks

[stephbb75]

I use it on an Amiga 4000T (internal SCSI of the 4000T) with OS 3.2.2.1

Here is a log with a 3GB disk, I did several tests for the size of the image file (3,145,728,000, 3221225472, ...) but I still have this line.

[10ms] Platform: ZuluSCSI RP2040
[10ms] FW Version: 23.07.01-release Jun 30 2023 16:12:07
[11ms] DIP switch settings: debug log 0, termination 1
[11ms] SCSI termination is enabled
[12ms] Flash chip size: 4096 kB
[14ms] SCSI target/disk mode selected by DIP switch, acting as a SCSI disk
[282ms] SD card detected, FAT64 volume size: 29809 MB
[282ms] SD MID: 0xFE, OID: 0x34 0x32
[283ms] SD Name: SD16G
[283ms] SD Date: 11/2021
[283ms] SD Serial: 0x00000358
[289ms] Config file zuluscsi.ini not found, using defaults
[291ms] Active configuration:
[295ms] -- SelectionDelay = 255
[296ms] -- EnableUnitAttention = No
[298ms] -- EnableSCSI2 = Yes
[300ms] -- EnableSelLatch = No
[301ms] -- MapLunsToIDs = No
[303ms] -- EnableParity = Yes
[654ms] Finding HDD images in directory /:
[656ms] -- Opening /hd1.hda for id:1 lun:0
[659ms] ---- Read prefetch enabled: 8192 bytes
[685ms] -- Platform supports ROM drive up to 3740 kB
[686ms] ---- ROM drive image not detected
[686ms] SCSI ID:1 BlockSize:512 Type:0 Quirks:0 ImageSize:3072000kB
[790ms] Initialization complete!
[3137ms] SCSI ID 1 negotiated synchronous mode 10 MB/s (period 4x25 ns, offset 8 bytes)
[3144ms] WARNING: Host used command 0x1A which is affected by drive geometry. Current settings are 63 sectors x 255 heads = 16065 but image size of 6144000 sectors is not divisible. This can cause error messages in diagnostics tools.

I recovered the contents of my real hard drive with the Zulu and no problem (4120 MiB)

But I would like to get bigger hard drives.
The 3.2 system allows you to manage large disks and 4GB partitions.

[stephbb75]

Should you put the characteristics of a real SCSI hard drive in the ini file to no longer have a problem?

[aperezbios]

This is a warning, not an error, and in most cases, can be safely ignored. Most operating systems don't care what the geometry is, but still ask for it. If it's working fine, you have nothing to worry about.

[stephbb75]

Yes it works but I want to use Bechmarck software (SysInfo) and when I get this warning this software crashes.
I recovered one of my physical disks and in the image it is ok.
But all the disk images that I try to create have this warning and this software therefore crashes.
I would simply like to succeed in making a 10/12 GB image that does not have a warning ;-)
How can I make the geometry good, should I put it in the ini file?

[stephbb75]

Hi,
Sorry with the questions about WARNING but I would like to understand ;-)

I have a 4GB image file, sometimes I have the WARNING sometimes not?
(extracted from zululog.txt file)
[10ms] Platform: ZuluSCSI RP2040
[10ms] FW Version: 23.07.01-release Jun 30 2023 16:12:07
[11ms] DIP switch settings: debug log 0, termination 1
[11ms] SCSI termination is enabled
[412ms] -- Opening /HD40_Vide4Go.hda for id:4 mon:0
[415ms] ---- Read prefetch enabled: 8192 bytes
...
[47939ms] SCSI ID 4 negotiated synchronous mode 10 MB/s (period 4x25 ns, offset 8 bytes)
[47945ms] WARNING: Host used command 0x1A which is affected ...
...
[1071082ms] SCSI ID 4 negotiated synchronous mode 10 MB/s (period 4x25 ns, offset 8 bytes)
...

When there is WARNING my test software crashes, when there is no WARNING it does not crash.
I didn't change anything on the SD card (since it remained in the Zulu)

Where could this “problem” come from?
From the machine's SCSI controller?
do you need a specific ini file?
Other ?