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Running on SSD gives error: ERROR: Could not obtain partition info (error code: 1) #16

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The-MAZZTer opened this issue Mar 9, 2016 · 5 comments
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Running on SSD gives error: ERROR: Could not obtain partition info (error code: 1) #16

The-MAZZTer opened this issue Mar 9, 2016 · 5 comments

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@The-MAZZTer
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Error appears to be generated from the call to DeviceIoControl on line 81 in. IORequestGenerator/IORequestGenerator.cpp

Error code 1 is ERROR_INVALID_FUNCTION.

I have an up-to-date Windows 10 machine. Running x86 and amdx64 both give the same result. The error only occurs if I try to use diskspd on my SSD, other drives have no issue.

Drive is a Samsung SSD 850 EVO 1TB. I'm using a standard Microsoft driver for it (driver details reports disk.sys, EhStorClass.sys, and partmgr.sys are the files for the driver) at version 10.0.10586.0.
@The-MAZZTer The-MAZZTer changed the title Running on SDD gives error: ERROR: Could not obtain partition info (error code: 1) Running on SSD gives error: ERROR: Could not obtain partition info (error code: 1) Mar 9, 2016
@dl2n
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dl2n commented May 11, 2016

Sorry I missed this when it was first filed. Is this still reproducing?

@The-MAZZTer
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Yes. Diskspd version number is 2.0.15 (2015/01/09)

@dl2n
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dl2n commented May 27, 2016

I'm asking around. In the meantime, can you try against the physical device as opposed to the :?

get-volume c | get-partition | get-disk

And use # as the target. If in powershell, quote the #, ala `#20

@The-MAZZTer
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The-MAZZTer commented May 28, 2016 •
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Using #0 (which get-volume c | get-partition | get-disk reports is the number of the SSD drive letter) works. I see no errors and diskspd appears to function as intended.

dl2n added a commit that referenced this issue May 31, 2016
@dl2n
* use -Sh for /? example, not deprecated -h
cc45491 
* properly align IO priority hint to 8 bytes as req.
* use iB notation for text result output (target size and bandwidth)
* use IOCTL_DISK_GET_LENGTH_INFO which supports GPT (issue #16)
* update version spec to in-flight 2.0.18a
@dl2n
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dl2n commented Jun 1, 2016

Fixed in the 2.0.18a push. DISKSPD was using a very old IOCTL to query out the partition size, one which only worked for MBR, not GPT.

@dl2n dl2n closed this as completed Jun 1, 2016
This was referenced Mar 20, 2023
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@The-MAZZTer @dl2n