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-->This test verifies the correct operation of a SD host controller by ensuring that the features described in the requirements are implemented by the host controller.
Test details
| Specifications |
|
| Platforms |
|
| Supported Releases |
|
| Expected run time (in minutes) | 2 |
| Category | Development |
| Timeout (in minutes) | 120 |
| Requires reboot | false |
| Requires special configuration | false |
| Type | automatic |
Additional documentation
Tests in this feature area might have additional documentation, including prerequisites, setup, and troubleshooting information, that can be found in the following topic(s):
Running the test
Before you run the test, complete the test setup as described in the test requirements: Hard Disk Drive Testing Prerequisites.
The test checks the current configuration of the eMMC disk and how it is attached to the system. It validates that the items described in the requirements are indeed implemented.
Troubleshooting
For generic troubleshooting of HLK test failures, see Troubleshooting Windows HLK Test Failures.
For troubleshooting information, see Troubleshooting Device.Storage Testing.
The logs are descriptive in what is being tested and where any failures occur. The first step in triaging failures should be to check the log file and determine which one of the requirement lines failed. The failure may also have more information about the root cause.
More information
The test will first do discovery on the SD host controllers and SD devices attached to the system to determine their capabilities. It will then specifically check the disk for the device specified to ensure that it conforms to the logo requirements. For each requirement item the device will be checked to see if it claims to support the features or modes required. Then if applicable, the device will be checked to ensure the operation of that feature is adequate. Failures will be logged for any error found.
Command usage
| Command | Description |
|---|---|
SoCBootTest.exe eMMCComplianceTest Device [StorageDriveLetter] | Run the eMMCComplianceTest scenario on the specified device. |
Command syntax
| Command option | Description |
|---|---|
SoCBootTest | The binary that runs the test. |
eMMCComplianceTest | Runs the eMMC Compliance test. |
Device | Specifies the device to run the test against. |
Note
For command line help for this test binary, type /?.
File list
| File | Location |
|---|---|
autocom.dll | <[testbinroot]>nttestdriversteststorage |
autocomManaged.dll | <[testbinroot]>nttestdriversteststoragemanaged |
bigfile.exe | <[testbinroot]>nttestdriversteststoragedisk |
DiskStress.exe | <[testbinroot]>nttestdriversteststoragesdSDBoot |
MemoryChoke.exe | <[testbinroot]>nttestdriversteststoragesdSDBoot |
MemoryStress.exe | <[testbinroot]>nttestdriversteststoragesdSDBoot |
SoCBootTest.exe | <[testbinroot]>nttestdriversteststoragesdSDBootSocBootTest |
SDHelper.dll | <[testbinroot]>nttestdriversteststoragesdToolsSDHelper |
EtwProcessor.dll | <[taefbinroot]> |
Wex.Common.dll | <[testbinroot]>wextestcuetestexecutionwlk |
Wex.Communication.dll | <[testbinroot]>wextestcuetestexecution |
ntlog.dll | <[testbinroot]>nttestcommontestntlog |
ntlogger.ini | <[testbinroot]>nttestcommontestntlog |
stresslog.dll | <[testbinroot]>basetestcore_file_servicesshared_libs |
fbslog.dll | <[testbinroot]>basetestcore_file_servicesshared_libsfbslog |
rapidfile.exe | <[testbinroot]>basetestcore_file_servicesshared_testsWdk |
Parameters
| Parameter name | Parameter description |
|---|---|
| LLU_LclAdminUsr | User account for running the test. |
| LLU_NetAccessOnly | User account for accessing test fileshare. |
| WDKDeviceID | Instance path of device to test. |
| DiskDeviceObjLink | Assigned by Create Storage Parameters. |
| Destructive | (0,1) 0=Passive, 1=Destructive |
SSD and eMMC Forensics 2016 – Part 3
What Has Changed in 2016 in the Way SSD Drives Self-Destruct Evidence. Demystifying eMMC, M.2, NVMe, and PCI-E.
by Yuri Gubanov, Oleg Afonin
© Belkasoft Research 2016
In the previous part of the article, we talked about eMMC storages and external SSDs. We also mentioned TRIM when talking about trimming behavior of eMMC. We will talk a bit more about TRIM this time and then move on to some real-life cases.
More about TRIM: Checking TRIM Support
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There are several levels of TRIM support, all of which are worth checking.
- TRIM support by the SSD drive itself.
- Whether TRIM is enabled and active on a given system/configuration.
- Whether TRIM is correctly implemented by the SSD controller.
- Whether the SSD supports and implements DRAT and DZAT.
Checking whether a particular SSD drive advertises TRIM support is as easy as reviewing its S.M.A.R.T. output, using the manufacturer’s bundled tool (e.g. SSD Toolbox, Samsung Magician and similar) or using a third-party tool such as CrystalDiskInfo.
NOTE: this test simply returns information about the theoretical capability of the SSD drive to support TRIM. It does not mean that TRIM is actually enabled on a given system, and does not certify that TRIM is correctly implemented by the SSD controller.
Checking whether TRIM is enabled in a particular system involves the use of a command-line tool (must run under administrative account). Type “fsutil behavior query DisableDeleteNotify” in the command line. If the result of “1” is returned, TRIM is disabled; if you see “0”, TRIM is enabled. As you can see from the next screenshot, on our system TRIM is enabled (“0” is returned).
Emmc Download 2016 Download
NOTE: this test does not alter the content of the SSD drive being checked. However, it only displays whether TRIM is active on a given system. If you perform this test on your computer, it will not give the correct indication on whether or not TRIM was enabled on the suspect’s system.
What is particularly interesting, however, is whether TRIM is fully working in the given SSD drive or not. Normally, once information is deleted, a low-level read command will return a string of zeroes as specified by Definite Read After Trim (DRAT) or Definite Zeroes After Trim (DZAT). This is normal behavior in most 2 to 4 year old SSD models. However, many current entry-level SSD drives consider DRAT/DZAT support a luxury, while some SSD controllers partially forego TRIM due to the use of built-in compression (Sandforce controllers, Intel 535 series).
Checking factual TRIM support takes writing a block of data, deleting it, and reading that block again. If you can see the data that was originally written to a data block, TRIM support is at least partially ineffective (meaning that the data may or may not be erased in the future).
We discovered an open-source SSD TRIM Check tool: https://github.com/CyberShadow/trimcheck
Emmc Download 2016 Torrent
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