Name that term Flashcards
The DTM data is compiled into images known as ___.
MFGDs
A complete test process is made up of one or more ____.
MFGD sequences
Each individual sequence of MfgCmds to be run is compiled into its own ___.
MFGD file
Function Test is made up of these two MFGD sequences
PreRsv and PstRsv
SRST is made of up of how many MFGDs?
one, unlike Function Test, which is made up of two MFGD sequences
MFGDs are the compiled data structure defined by a collection of ___ that define:
- The sequence of MfgCmds to be run
- The MCCB settings
- A collection of limits
- A limited set of environmental and configuration settings
XML files
MFGDs are the compiled data structure defined by a collection of XML files that define the ________ to be run
sequence of MfgCmds
the sequence can be a simple static sequence or controlled by selectors
MFGDs containg the ___ for the individual commands that make up that sequence (and these, like the MfgCmd sequence, can be simple and static or controlled via selectors)
MCCB settings
Manufacturing Command Command Block
MFGDs contain collection of limits that will be tested against the ____ returned by the MfgCmds
These limits make up the bulk of the specifications applied against all drives that go through the factory test process.
MCSBs
Manufacturing Command Status Blocks
A limited set of environmental and configuration settings for things like “record log size” and “preferred temperature” are found in the ____.
MFGD
_____ is the C++ logic mainly responsible for
- Running the generic sequences from the loaded MFGD
- Constructing the MCCB structures
- Processing the MCSB data and comparing those outputs to the specifications from the MFGD
- Managing writing to and from the firmware FIDs and RIDs
DTM code
DTM code is responsible for running the generic sequences from the loaded ____.
MFGD
DTM code is responsible for constructing the ____ structures.
MCCB
Manufacturing Command Command Block
DTM code is responsible for processing the ___ data and comparing those outputs to the specifications from the MFGD.
MCSB
Manufacturing Command Status Blocks
____ manages writing to and from the firmware FIDs and RIDs.
DTM code
DTM legacy applications (logic for commands that were never ported into standard MfgCmds) are mostly used in ______ due to the lack of “command queuing” for MfgCmd code.
“Performance Testing”
SRST is run at what temperature?
Hot
It was called “Self-Run Selftest” operation because almost all of the test logic would be contained and run on ____, when before it was run by ___. This eventually became the basis for all test processes, including function test.
Then, in CCB, SRST applications became MfgCmds, and the old SRST code became known as DTM, though the hot temp process maintained the name “SRST.”
the drive’s own processor, tester code
CCB architecture introduced a new layer of test firmware known as ____. Functionality that had been SRST applications became ____.
MfgCmd code,
individual MfgCmds
The easiest way to adjust DTM sequence and settings is using the ___ tool, a Niagara extension.
Atlas
In CCB7, DTM code and data were separated into two different “code bases” and versioned separately. DTM data was given the name “Hercules” and DTM code given the code name “Argo”.
In CCB8, changes to firmware architecture required that DTM code be compiled regularly against new IPFW. For this reason Argo DTM was recombined with Hercules. DTM code (formerly Argo), was moved inside of the ______.
In CCB9, much of the DTM logic will be move to a host controlled process and on-drive DTM logic will be greatly simplified.
MfgCmd code repository
____ (also sometimes called ____) are used to conditionally enable steps in the sequence of MfgCmds (as opposed to steps beings statically enabled for all drives).
Let’s say you only need to run a particular test on SAS drives that have internal HGST heads. You can use the ____ head=”HGST” and intf=”SAS” so that only drives where those two conditions are true will run the step.
In CCB8 the most common ___ used is “RECT” or recording type, allowing us to have a bit of a different sequence for the CMR, SMR, and DHSMR (XMR) variants of Leo-C.
Modifiers,
selectors,
(selectors, modifiers)
Every Manufacturing test reports one or more 4-character _____. “0000” means that the test successfully passed with no errors. They can originate from several places. DTM reports them for tests that don’t meet specifications and for tests that result in a non-zero MUEC from the MfgCmd code.
failure codes
In the Status Block (MCSB) tab in the Atlas tool, you can give _________ for any MCSB output associated with a command. Speccing “ManufacturingCommandUec” (as the parameter) to surface error codes from MfgCmd code is very common and happens in almost all commands.
When the fatal checkbox is checked that spec will immediately cause the drive to end execution as soon as the failure is generated. Non-fatal specs will continue through the sequence and just report the failure at the end of the process.
minimum and maximum spec values
In the Atlas tool, if you scroll to the far right of either the MCCB or MCSB tab you find the “magic wand” _____ button for every entry in the list. ____ can be applied to each line of MCCB settings or MCSB specs. The dialog for settings and specs is exactly the same as the one for sequences above.
____ work very similarly to how they work in sequences, where they bring some “smarts” and allow for some dynamic settings and specs where you can do things like “set a different command option for SMR vs CMR drives” or “apply a different spec to HGST heads than to SAE heads”.
modifier(s) (x3)
Running MfgTest on Bench:
(May 2018) Since CCB manufacturing tests are run with a system known as “self-run selftest” it is easy to execute a MfgTest from any bench Niagara setup that very closely approximates what the test will be like on dedicated tester hardware. Starting with CCB7, these tests are executed through the HerculesTCL script (often referred to as hercules.tcl, HerculesTools, HercTools, and DTM TCL), available as an extension in Niagara.
At the end, Hecules TCL will save a _____ that can be opened in ____. It can be used to view your data or debug a Mfg failure.
binary log file,
HiLiter
HDD test firmware calls a sequence of ____ with preset ____.
MfgCmds,
MCCB (Manufacturing Command Command Block)
____ handles collection and reporting of the Mfg cmd results and passes information back to the host
DTM
___ uses compiled data structures (____) defined by a set of XML files
DTM,
MFGD
DTM can be run on ____ as well as on ___.
testers,
the bench
____ include DTM information, FIDs, RIDs, MCCBs, MCSBs, Dumps
DTM logs
Logs are saved in ____ if DTM is run through testers.
Logs are saved in ____ if DTM is run on the bench.
designated file servers,
local folder
____ call SPC commands to iterate through zones and collect the data from the SPC commands.
MfgCmds
____ are wrapper functions to support different options of low level functions such as read, write, etc. For example, SID-to-SID mode read, Sector mode read, etc.
SPC commands (special commands)
___ are usually meant to be executed on a given track.
SPC commands (special commands)
___ serve as the building blocks of the MFG commands.
SPC commands (special commands)
___ provides the low-level drive functions to seek, read, write, data structures.
IP FW
IP FW functions operate directly on the ___ like disk formatter, SHARP, hardware registers.
hardware blocks
___ owns drive state variables, FID/RID, configuration bits, HW registers, etc.
IP FW
MFG command layer —> ____ —> IP Low-Level Functions
SPC (special) command layer
Reader selection in TDMR occurs through ___.
MCCB settings
Manufacturing Command Command Block
Reader configuration bits are in the FAEP ___.
FAEP is the Flash AE Parameter (AE is the pre-amp, also known as AE or arm-electronics).
FID
Recording type and layout are in ____.
MCCB settings
Manufacturing Command Command Block
___ for RWI MfgCmds includes:
- Reader configuration bits in FAEP FID,
- Recording type, layout, and TDMR reader selection through MCCB settings
infrastructure support
RWI mfg cmds for
_____:
CAiw, CAsb, CGtm, CNba, CRsbn, CRwo, CWlife
_____:
CAmp, CAsm, CHi, CHicads, CMcw, CMrw, COw, CRmr, Cser, CRwip, CPe, CJtr, CXtalk
Optimization,
Measurement
Flash AE (pre-amp, or arm-electronics) Parameters are stored in
FAEP FID
