Hello,
I received this drive spin up and calibrate normally.
NAND problem stays busy.
Two questions:
1- What family is it?
2- Is it supported by MRT?

Thanks in advance.

All my searches turn up a NAND-less PCB (100846468). :-?

https://www.hddzone.com/images/100846468.jpg

_________________
A backup a day keeps DR away.

You are right Mr. Franc.
I mis-diagnosed the error messages.
I didn't even unscrew the PCB to see if the NAND chip exist.

Terminal output:
Boot 0x0100MVM0148CV10
SpinUp
TCC:001F

Trans
Rst 0x0100MVM0148CV10
SAdd:0x0055A3C5
NVCScram Saved HB Size:020A
LD: MD_Alloc:00000078 HB_Alloc:0000 MD_Alloc:80380000 HB_Alloc:8032 FlashRestore MD_Saved:00000078 HB_Saved:00000000 MD_CRC:0154
PP: MD_Alloc:0000B400 HB_Alloc:0000 FlashRestore
PVTSize: 00002C00 CompSize: 0000008C DeCompSize: 00002C00 MD_Saved:0000008C HB_Saved:00000000 MD_CRC:8183
WCD: MD_Alloc:00012000 HB_Alloc:02E6 FlashRestore..............................................................................................................................................................................................................................................................................................................................................................................................
Failed power-on replay: 0x0052

ROM file attached :






Thanks for help.

Shorting read channel at proper time gives me temporary access now, the drive reset power after a couple of reading sectors.

I will try to unlock ROM and figure out the FW problem and post back.

Thanks a lot Mr. Franc.

Do "NVCScram" and "FlashRestore" refer to a nonvolatile cache in the extra space at the end of the ROM, and is this cached area being flushed to the UA after a power cycle, albeit unsuccessfully???

_________________
A backup a day keeps DR away.

Would erasing the CELog (Critical Event Log) achieve anything?

https://www.acelab.eu.com/news/the-most-recent-software-versions-of-the-pc-3000-portableexpressudmasas-data-ext

_________________
A backup a day keeps DR away.

What if you were to change the CELog from ...


... to ...

_________________
A backup a day keeps DR away.

Unfortunately, same error message remaining.

The data in your terminal output appears in the Extra Space.

_________________
A backup a day keeps DR away.

Can you upload a new ROM dump after clearing the Extra Space and starting the drive?

_________________
A backup a day keeps DR away.

Sure I will.
I already did that and noticed a lot of differences.
I will get back to the office tomorrow (Saturday) and I will upload the ROM file.
Thanks a lot for trying to help.

I suspect that the Extra Space is used as a write cache during power loss events. Any unwritten data is saved to this area, and a critical event is logged in the CELog segment. When the drive next powers up, the firmware replays the pending write transactions, but in your case this appears to have failed ("Failed power-on replay: 0x0052").

Perhaps the two "DaT" blocks need to be re-initialised rather than cleared???

_________________
A backup a day keeps DR away.

Totally agree.
That's what exactly came in my mind.
The drive reads one single sector then power cycle and repeat the error message and stays busy.
You're perfectly right

Could it be that the drive is unable to write, so it leaves the write data in NV cache and then remains busy???

_________________
A backup a day keeps DR away.

Two drives in the same enclosure (QNAP - RAID 1) both with the same symptoms are unable to write?
I don't think so.

Here we go :
You will notice a lot of changes

The Extra_Space is located at offset 0x15A000 in the ROM.

This is the structure as I see it.



The "firmware data" at offset 0x26000 contains the following text:

_________________
A backup a day keeps DR away.

Any suggestions?

I got this terminal output after modifying and the drive get ready and I can read only one sector:
SCRAM NVC is lost!..........
[wmp:00000007]
DSP004D
2Sync:0 4
Has anyone has a backup for a similar drive?
Thanks in advance

I tried to search all those commands to find anything related, but no luck.
F3 C>Q

Online CR: Rev 0011.0000, Flash, Abort
Online ESC: Rev 0011.0000, Flash, Abort Looping Command or Batch File
Online ' ': Rev 0001.0000, Overlay, Pause Output
Online '.': Rev 0013.0000, Overlay, Display Active Status
Online '?': Rev 0011.0001, Overlay, Display Diagnostic Buffer Information
Online '`': Rev 0017.0000, Flash, Display Read/Write Statistics
Online '$': Rev 0017.0000, Flash, Display Read/Write Statistics By Zone
Online '{': Rev 0011.0000, Overlay, Toggle EIB-Specific R/W Tracing
Online ^D: Rev 0013.0000, Overlay, Toggle R/W Tracing
Online ^N: Rev 0013.0000, Overlay, Toggle R/W Tracing
Online ^W: Rev 0011.0000, Flash, Enable and Init RW Statistics
Online ^O: Rev 0004.0000, Overlay, Advance Servo Tracing State
Online ':': Rev 0001.0000, Flash, PrepSecondaryOnlineCmd
Online '!': Rev 0012.0000, Overlay, Display Current Read Channel Settings
Online '<': Rev 0011.0000, Overlay, Decrement Read/Write Scope Sync
Online '>': Rev 0011.0000, Overlay, Increment Read/Write Scope Sync
Online '~': Rev 0015.0000, Overlay, Display Native Interface Command State
Online ^A: Rev 0028.0000, Flash, Display Firmware Revision
Online ^B: Rev 0015.0000, Overlay, Get Environmental Data
Online ^C: Rev 0011.0000, Overlay, Firmware Reset
Online ^E: Rev 0011.0000, Overlay, Display Native Interface Configuration
Online ^F: Rev 0011.0001, Overlay, Display Native Interface Read Cache Information
Online ^I: Rev 0011.0000, Overlay, Display Controller Registers
Online ^K: Rev 0011.0000, Overlay, Display DST Status
Online ^L: Rev 0026.0000, Overlay, Display Sign On Message
Online ^P: Rev 0011.0000, Overlay, Toggle Diag Idle Mode
Online ^Q: Rev 0011.0000, Overlay, Resume Interface Task
Online ^R: Rev 0011.0000, Flash, Enable ASCII Online Serial Port Mode
Online ^S: Rev 0011.0000, Overlay, Pause Interface Task
Online ^T: Rev 0011.0000, Flash, Enable ESLIP Serial Port Mode
Online ^U: Rev 0011.0000, Overlay, Display Congen
Online ^V: Rev 0011.0000, Overlay, Toggle Interface Command Echo
Online ^X: Rev 0014.0000, Overlay, Display Native Interface and Read/Write Command History
Online ^Y: Rev 0011.0000, Overlay, Display DST Status
Online ^Z: Rev 0011.0000, Flash, Enable ASCII Diagnostic Serial Port Mode
Online ^\: Rev 0012.0000, Overlay, Toggle Debug Display Enable
Level : '`': Rev 0017.0000, Flash, QMON Counters
Level : '$': Rev 0017.0000, Flash, QMON Stats
Level : 'C': Rev 0001.0000, Overlay, Dump Seacorder Log
Level : 'W': Rev 0001.0000, Overlay, Dump Servo Capture Log
Level : 'E'No help available
Level : 'S': Rev 0001.0000, Overlay, Dump Servo Seek Failure Log
Level : '.': Rev 0001.0000, Flash, Display R/W Status
All Levels CR: Rev 0011.0000, Flash, Abort
All Levels '/': Rev 0001.0000, Flash, Change Diagnostic Command Level, /[Level]
All Levels '+': Rev 0012.0000, Flash, Peek Memory Byte, +[AddrHi],[AddrLo],[NotUsed],[NumBytes]
All Levels '-': Rev 0012.0000, Flash, Peek Memory Word, -[AddrHi],[AddrLo],[NotUsed],[NumBytes]
All Levels '=': Rev 0011.0002, Flash, Poke Memory Byte, =[AddrHi],[AddrLo],[Data],[Opts]
All Levels '@': Rev 0001.0000, Overlay, Batch File Label, @[LabelNum]
All Levels '|': Rev 0001.0000, Overlay, Batch File Terminator, |
All Levels '*': Rev 0011.0000, Overlay, Special Batch File Function, *[FuncId],[FuncParm0],[FuncParm1]
All Levels 'A': Rev 0013.0001, Overlay, Set Test Space, A[OptsOrParmSelect],[ParmValue],[AddrType],[HdForCylLimit]
All Levels 'L': Rev 0001.0002, Overlay, Enable Looping, L[Opts],[CountOrStopOnErrCode]
Level 1 'N': Rev 0017.0007, Flash, SMART Control, N[SubCmd],[SubCmdParm0],[SubCmdParm1]
Level 1 'd': Rev 0002.0000, Flash, Get Stack Usage Information, d
Level 1 'B': Rev 0011.0000, Overlay, Buffer Display, B[DisplayBlk],[RefBlk],[NumBlks],[Opts],[SymBits]
Level 1 'D': Rev 0011.0001, Overlay, Memory Block Display, D[AddrHi],[AddrLo],[CompVal],[NumBytes],[Opts],[SizeInBytes]
Level 1 'G': Rev 0011.0000, Overlay, Generic Read/Write Request, G[Parm0],[Parm1],[Parm2],...[Parm9]
Level 1 'S': Rev 0011.0001, Overlay, Edit Processor Memory Byte, S[AddrHi],[AddrLo],[MemValue],[NumBytes],[Opts]
Level 1 'U': Rev 0011.0001, Overlay, Edit Buffer Memory Byte, U[AddrHi],[AddrLo],[MemValue],[NumBytes]
Level 1 'c': Rev 0011.0000, Overlay, Buffer Compare, c[SrcBlk],[RefBlk],[NumBlks],[ContOnErr]
Level 1 'e': Rev 0011.0000, Overlay, Spin Down and Reset Drive, e[MsecDelay],[Opts]
Level 1 'j': Rev 0001.0000, Overlay, Display Hardware Jumper Setting, j[HardwareJumperSelect]
Level 1 'm': Rev 0011.0001, Overlay, Edit Processor Memory Word, m[AddrHi],[AddrLo],[MemValue],[NumBytes],[Opts]
Level 1 's': Rev 0001.0000, Overlay, Call SDBP Cmd, s[Parm1],[Parm2],[Parm3]
Level 2 'H': Rev 0011.0000, Flash, Select Logical Head, H[Hd],[SkType],[Options]
Level 2 'q': Rev 0001.0000, Flash, Diag Zone Table, q[Head],[TrackRangeType],[Attributes]
Level 2 'x': Rev 0048.0000, Flash, Display Zone Information, x[Partition],[Hd],[Zone],[Options]
Level 2 'B': Rev 0011.0000, Overlay, Buffer Display, B[DisplayBlk],[RefBlk],[NumBlks],[Opts],[SymBits]
Level 2 'C': Rev 0011.0000, Overlay, Buffer Copy, C[SrcBlk],[DestBlk],[NumBlks]
Level 2 'D': Rev 0003.0000, Overlay, LdpcIterationControl, D[itratn cnt],[glbl itratn],[BERP opts],[erasure],[slidewindowjog_sz],[ext itratn],[slidingwindow itratn],[MAMR itratn]
Level 2 'E': Rev 0015.0000, Overlay, Display / Edit Log, E[LogNum],[ErrCodeOrSpecialFuncKey],[SpecialFunc]
Level 2 'F': Rev 0013.0000, Overlay, Modify Track Defect List, F[PSctr/LBA],[Action],[SourceMask],[BBMMask]
Level 2 'I': Rev 0017.0001, Overlay, Display / Modify Adaptive Parameter, I,[GroupId]
Level 2 'J': Rev 0001.0000, Overlay, Particle Sweep, J[ Start Cyl ],[ End Cyl ],[ Duration mSec ],[ Dwell mSec ],[ JIT mode ]
Level 2 'K': Rev 0011.0000, Overlay, Set Tracking Offset, K[OffsetValue],[PersOrTempOpt],[UnitsOpt],[ChanReload]
Level 2 'M': Rev 0012.0000, Overlay, Set Diag Idle Mode, M[ModeSelect],[ModeMask],[ResetToPowerOn]
Level 2 'N': Rev 0001.0000, Overlay, Set Direct Write Mode, N[EnableDirWrtModeOpt]
Level 2 'O': Rev 0011.0000, Overlay, Seek or Read/Write Repeatedly Between Physical Cylinders, O[FirstSeekODStrokePercent],[SecondSeekIDStrokePercent],[TransferLengthHostSectors],[CylStepSizeTenthsOfPercent],[ButterflyDirection],[ButterflyTransferType],[LogicalHead]
Level 2 'P': Rev 0011.0000, Overlay, Set Buffer Pattern, P[PatternSelOrPatternLow],[PatternHi],[PatternBits],[Opts],[BlkNum],[NumBlks]
Level 2 'Q': Rev 0011.0001, Overlay, Write, Read, Read CHS, Q[Sec],[NumSecs],,[PhyOpt],[Opts]
Level 2 'R': Rev 0011.0003, Overlay, Read CHS, R[Sec],[NumSecs],,[PhyOpt],[Opts]
Level 2 'S': Rev 0011.0000, Overlay, Seek to Logical Cylinder and Head, S[Cyl],[Hd],[Offset],[OffsetUnitsOpt],[SkType],[Options]
Level 2 'T': Rev 0020.0000, Overlay, Measure Throughput, T[Opts],[Retired],[Retired],[Retired],[Retired],[LengthInTracksOrBands],[OffsetInTracksOrBands],[NumberOfRetries],[TestZoneSize]
Level 2 'U': Rev 0011.0000, Overlay, Spin Up Drive, U[HoldState],[Hd],[Cyl]
Level 2 'V': Rev 0011.0001, Overlay, Read Verify CHS, V[Sec],[NumSecs],[CompareBlk],[Opts]
Level 2 'W': Rev 0011.0002, Overlay, Write CHS, W[Sec],[NumSecs],,[PhyOpt],[Opts]
Level 2 'X': Rev 0016.0001, Overlay, Display Track Information, X[LogCyl],[Hd],[SysAreaOpt],[Opts],[RowsPerPage]
Level 2 'Y': Rev 0012.0001, Overlay, Set Retries - DERP, Y[Mode],[MaxRdRetries],[MaxWrtRetries],,[Options]
Level 2 'Z': Rev 0011.0000, Overlay, Spin Down Drive, Z
Level 2 'b': Rev 0017.0000, Overlay, BER by Hd / Zone, b[hd][,zone]
Level 2 'c': Rev 0011.0000, Overlay, Buffer Compare, c[SrcBlk],[RefBlk],[NumBlks],[ContOnErr]
Level 2 'e': Rev 0001.0000, Overlay, Clean Track Range, e[StartLogicalTrack],[EndLogicalTrack],[Head]
Level 2 'h': Rev 0020.0000, Overlay, Translate Physical Sector, h[Sec],[NumSecs]
Level 2 'i': Rev 0011.0000, Overlay, Display Defects On Current Track, i[Print Summary]
Level 2 'j': Rev 0011.0001, Overlay, Read Wedge, j[WedgeAddr],[NumWedges],[NumSkipedWedges],[TranSize],[Opts],[RegAddr0],...,[RegAddr13]
Level 2 'k': Rev 0001.0000, Overlay, Set User Cylinder/Head/MiniZone Skew, k[CylSkew],[HeadSkew],[MiniZoneSkew]
Level 2 'l': Rev 0020.0000, Overlay, Translate Logical Sector, l[Sec],[NumSecs]
Level 2 'o': Rev 0002.0002, Overlay, Corrupt LBA, o[Lba],[NumBlocks],[BurstSpan],[BurstOffset],[NumberOfRandomCorrupt],[Flags]
Level 2 'r': Rev 0011.0001, Overlay, Read Long CHS or Read System CHS, r[LongSec],[LongSecsOrSysSec],[SysSecs],[LongPhySecOpt],[LongOpts],[SysOpts]
Level 2 's': Rev 0011.0000, Overlay, Seek to Physical Cylinder and Head, s[Cyl],[Hd],[ValidKey],[Offset],[OffsetUnitsOpt],[SkType],[Options]
Level 2 't': Rev 0020.0000, Overlay, Translate Wedge, t[Wdg],[NumWdgs]
Level 2 'u': Rev 0011.0000, Overlay, Enable/Disable Channel/Preamp Register Display, u[EnableDisableOpt]
Level 2 'v': Rev 0011.0000, Overlay, Convert Data Track Percentage To Servo Offset Count, v[Percentage]
Level 2 'w': Rev 0012.0001, Overlay, Write Long CHS or Write System CHS, w[LongSec],[LongSecsOrSysSec],[SysSecs],[LongPhySecOpt],,[SysOpts],[SysValidKey]
Level 2 'y': Rev 0011.0000, Overlay, Set DERP Retry State, y[Type],[PathState],[RetryStateCnt],[LoopCnt1],[LoopCnt2]
Level 2 'z': Rev 0012.0001, Overlay, Write Wedge, z[WedgeAddr],[NumWedges],[NumSkipedWedges],[TranSize],[Opt],[RegAddr0],...,[RegAddr13],[TSpacing]
Level 2 '7': Rev 0011.0001, Overlay, Write Verify CHS, 7[Sec],[NumSecs],[WrBufBlk],[Opts]
Level 3 'H': Rev 0011.0000, Flash, Select Logical Head, H[Hd],[SkType],[Options]
Level 3 'D': Rev 0011.0000, Overlay, Measure Seek Access Time, D[SkLength],[SkType],[NumSks]
Level 3 'E': Rev 0015.0000, Overlay, Display / Edit Log, E[LogNum],[ErrCodeOrSpecialFuncKey],[SpecialFunc]
Level 3 'O': Rev 0011.0000, Overlay, Seek or Read/Write Repeatedly Between Physical Cylinders, O[FirstSeekODStrokePercent],[SecondSeekIDStrokePercent],[TransferLengthHostSectors],[CylStepSizeTenthsOfPercent],[ButterflyDirection],[ButterflyTransferType],[LogicalHead]
Level 3 'Q': Rev 0011.0001, Overlay, Write, Read, Write, Read CHS, Q[Sec],[NumSecs],[Opts]
Level 3 'R': Rev 0012.0000, Overlay, Read Current Servo Destination, R
Level 3 'S': Rev 0011.0000, Overlay, Seek to Logical Cylinder and Head, S[Cyl],[Hd],[Offset],[OffsetUnitsOpt],[SkType],[Options]
Level 3 'U': Rev 0011.0000, Overlay, Spin Up Drive, U[HoldState],[Hd],[Cyl]
Level 3 'V': Rev 0012.0000, Overlay, Read or Write Power ASIC Register, V[RegAddr],[RegValue],[WrOpt]
Level 3 'Z': Rev 0011.0000, Overlay, Spin Down Drive, Z
Level 3 'b': Rev 0001.0000, Overlay, LoadUnloadHeads, b[Cmd],[Velocity],[Dwell],[Lock]
Level 3 'f': Rev 0013.0000, Overlay, Real Time Servo Trace, f[SubCmd],[SubPrm0],[SubPrm1],[SubPrm2]
Level 3 'p': Rev 0020.0000, Overlay, Translate Physical Sector, p[Sec],[NumSecs]
Level 3 'q': Rev 0020.0000, Overlay, Translate Logical Sector, q[Sec],[NumSecs]
Level 3 's': Rev 0011.0000, Overlay, Seek to Physical Cylinder and Head, s[Cyl],[Hd],[ValidKey],[Offset],[OffsetUnitsOpt],[SkType],[Options]
Level 4 'H': Rev 0011.0000, Flash, Select Logical Head, H[Hd],[SkType],[Options]
Level 4 'B': Rev 0011.0000, Overlay, Enable / Disable RVFF, B[NewRvffControlMode]
Level 4 'D': Rev 0011.0000, Overlay, Measure Seek Access Time, D[SkLength],[SkType],[NumSks]
Level 4 'E': Rev 0015.0000, Overlay, Display / Edit Log, E[LogNum],[ErrCodeOrSpecialFuncKey],[SpecialFunc]
Level 4 'F': Rev 0001.0000, Overlay, Fast IO Cmd, F[NumRevs],[Attrib1],[Attrib2],[Attrib3]
Level 4 'K': Rev 0011.0000, Overlay, Set Tracking Offset, K[OffsetValue],[PersOrTempOpt],[UnitsOpt],[ChanReload]
Level 4 'O': Rev 0011.0000, Overlay, Display Micro Jog for Logical Cylinder and Head, O[LogCyl],[Hd],[Opts],[SysAreaOpt]
Level 4 'S': Rev 0011.0000, Overlay, Seek to Logical Cylinder and Head, S[Cyl],[Hd],[Offset],[OffsetUnitsOpt],[SkType],[Options]
Level 4 'U': Rev 0011.0000, Overlay, Servo Batch Test sub commands, U[SubCmd],[SubCmdParm0],[SubCmdParm1],[SubCmdParm2]
Level 4 'c': Rev 0001.0000, Overlay, Find Min Or Max Cylinders c[Head],[Mode],[RangeMultiplier],[RetryCountLimit],[FilterTimeConstant]
Level 4 'd': Rev 0001.0000, Overlay, Display Servo Disc Slip
Level 4 'e': Rev 0011.0000, Overlay, Enable / Disable PES Output, e[PesLeftShiftCnt],[DisablePesOut]
Level 4 'g': Rev 0001.0000, Overlay, Display Servo Sector Error Log, g
Level 4 'k': Rev 0001.0000, Overlay, Get VGA Data, k[OpType],[StartHt],[EndHt],[HtInc]
Level 4 'l': Rev 0011.0000, Overlay, Scan Track for Servo Defects and ZAP, l[RdPositionOpt]
Level 4 'q': Rev 0001.0000, Overlay, Display Servo Event Log, q
Level 4 's': Rev 0002.0000, Overlay, Display Servo Sector Error Count, s
Level 4 't': Rev 0011.0000, Overlay, Display / Modify ZAP Table, t[EntryNum],[EntryValue]
Level 4 'u': Rev 0011.0000, Overlay, Set Seek Speed, u[Opts],[SkSpeed]
Level 4 'v': Rev 0012.0000, Overlay, Butterfly Seek or Read/Rrite Repeatedly Between Physical Cylinders, v[FirstSeekODStrokePercent],[SecondSeekIDStrokePercent],[TransferLengthHostSectors],[CylStepSizeTenthsOfPercent],[ButterflyDirection],[ButterflyTransferType],[LogicalHead]
Level 5 'E': Rev 0001.0000, Flash, Measure Disc Eccentricity
Level 5 'R': Rev 0011.0000, Flash, Read Servo RAM at Address, R[Addr],[NumBytes]
Level 5 'S': Rev 0011.0000, Flash, Enter Servo Matlab Shell, S
Level 5 'B': Rev 0011.0000, Overlay, Servo Bode Plot, B[BodeType],[InjAmp],[Fmin],[Fmax],[NumFreq],[NumSamples],[EnableTracing]
Level 5 'C': Rev 0011.0000, Overlay, Generic Servo Command, C[CmdNum],[Parm1],...[Parm7]
Level 5 'D': Rev 0011.0000, Overlay, Read / Unlock DDR Buffer, D[OperateCode]
Level 5 'G': Rev 0011.0000, Overlay, Select Servo Controller, G[Head],[Controller],[InputShift]
Level 5 'K': Rev 0001.0000, Overlay, Servo Disc Slip, K [OperationSelectId]
Level 5 'U': Rev 0011.0000, Overlay, Enable / Disable Servo Updates, U[VcmDacUpdateOpt],[AToDUdateOpt]
Level 5 'W': Rev 0011.0000, Overlay, Write Servo RAM at Address, W[Addr],[NumBytes],[Data]
Level 5 'Z': Rev 0011.0000, Overlay, Read Zap from Disc to Table, Z
Level 5 'b': Rev 0001.0000, Overlay, Bist Functionality, b[FunctionCode],[Mode]
Level 5 'd': Rev 0011.0000, Overlay, Disable / Enable Servo ZAP coefficients and ZAP read, d[ZapControlMode]
Level 5 'e': Rev 0001.0000, Overlay, Enable / Disable Shock Sensor, e[Operation]
Level 5 'i': Rev 0011.0000, Overlay, Read Servo Symbol Table at Index, i[Index]
Level 5 'p': Rev 0001.0000, Overlay, Set Power Mode, p[PowerMode]
Level 5 'r': Rev 0011.0000, Overlay, Read Servo RAM at Index, r[Index],[NumBytes],[ByteOffset]
Level 5 'w': Rev 0011.0000, Overlay, Write Servo RAM at Index, w[Index],[NumBytes],[Data],[ByteOffset]
Level 6 'B': Rev 0011.0000, Overlay, Run Batch File, B[BatchFileNum],[DisplayOpt]
Level 6 'D': Rev 0011.0000, Overlay, Display Batch File, D[BatchFileNum]
Level 6 'E': Rev 0011.0000, Overlay, Enter Batch File, E[BatchFileNum]
Level 7 'G': Rev 0004.0000, Flash, MonitorBackgroundTasks, G[SubCmd]
Level 7 'H': Rev 0011.0000, Flash, Select Logical Head, H[Hd],[SkType],[Options]
Level 7 'x': Rev 0048.0000, Flash, Display Zone Information, x[Partition],[Hd],[Zone],[Options]
Level 7 'B': Rev 0011.0000, Overlay, Buffer Display, B[DisplayBlk],[RefBlk],[NumBlks],[Opts],[SymBits]
Level 7 'C': Rev 0011.0000, Overlay, Buffer Copy, C[SrcBlk],[DestBlk],[NumBlks]
Level 7 'D': Rev 0015.0000, Overlay, Display Environmental Data, D[DevSelect]
Level 7 'E': Rev 0015.0000, Overlay, Display / Edit Log, E[LogNum],[ErrCodeOrSpecialFuncKey],[SpecialFunc]
Level 7 'I': Rev 0017.0001, Overlay, Display / Modify Adaptive Parameter, I,[GroupId]
Level 7 'K': Rev 0011.0000, Overlay, Set Track Format, K[UserAreaTrkFormatType],[SysAreaTrkFormatType]
Level 7 'P': Rev 0011.0000, Overlay, Set Buffer Pattern, P[PatternSelOrPatternLow],[PatternHi],[PatternBits],[Opts],[BlkNum],[NumBlks]
Level 7 'Q': Rev 0011.0001, Overlay, Write, Read, Read CHS, Q[Sec],[NumSecs],,[PhyOpt],[Opts]
Level 7 'R': Rev 0011.0003, Overlay, Read CHS, R[Sec],[NumSecs],,[PhyOpt],[Opts]
Level 7 'S': Rev 0011.0000, Overlay, Seek to Logical Cylinder and Head, S[Cyl],[Hd],[Offset],[OffsetUnitsOpt],[SkType],[Options]
Level 7 'U': Rev 0015.0005, Overlay, Preamp Temperature Adjust, U[TweakTemperature],[Partition],[Hd],[Zone],[Opts],[WrPreht],[WrWrtHt],[WrRdHt],[RdPreht],[RdWrtHt],[RdRdHt],[RelHum]
Level 7 'W': Rev 0011.0002, Overlay, Write CHS, W[Sec],[NumSecs],,[PhyOpt],[Opts]
Level 7 'X': Rev 0011.0001, Overlay, Display Preamp Head Resistance
Level 7 'Y': Rev 0012.0001, Overlay, Set Retries - DERP, Y[Mode],[MaxRdRetries],[MaxWrtRetries],,[Options]
Level 7 'Z': Rev 0011.0000, Overlay, Spin Down Drive, Z
Level 7 'b': Rev 0012.0000, Overlay, Erase Track, b[AdjacentTrkCnt],[EraseCntPerTrk],[AcEraseOpt]
Level 7 'c': Rev 0011.0000, Overlay, Off Track Capability, c[Sec],[NumSecs],[SecIncrement],[Offset]
Level 7 'd': Rev 0002.0000, Overlay, Create Recoverable Read Error, d LBA,[min],[max],[cnt],[sev]
Level 7 'e': Rev 0001.0000, Overlay, BipsControl, e[BipsControlOptions]
Level 7 'f': Rev 0001.0000, Overlay, SuperParityRecoveryCmd, f[DiscLba]
Level 7 'g': Rev 0001.0000, Overlay, Sector Based BER, g[sctr],[len],[option]
Level 7 'h': Rev 0011.0001, Overlay, Mark Media Flaw, h[PhyCyl],[Hd],[PhySec],[UndisturbedRadius],[EraseBandTrks],[PtrLen],[WgSpec],[Od/Id]
Level 7 'i': Rev 0011.0000, Overlay, Generic Read/Write Request, i[Parm0],[Parm1],[Parm2],...[Parm9]
Level 7 'j': Rev 0001.0000, Overlay, GetSetLongErasureMaskTableCount, L[Mission],[Value]
Level 7 'k': Rev 0001.0000, Overlay, ModifyIap, k[IapDataOffset],[WriteFlash],[IapDataValue],[IapDataLength]
Level 7 'm': Rev 0029.0000, Overlay, Display DOS Information, m[Flags],[LBA],[MinCnt]
Level 7 'p': Rev 0001.0000, Overlay, EnablePOIS, p[EnablePoisFlag]
Level 7 'r': Rev 0012.0000, Overlay, Read Non-Volatile Adaptive Parameters, r[Opts]
Level 7 's': Rev 0011.0000, Overlay, Write Peripheral Register - channel or preamp, s[OpType],[RegAddr],[RegValue],[RegMask],[RegPagAddr]
Level 7 't': Rev 0012.0000, Overlay, Read Peripheral Register - channel or preamp, t[OpType],[RegAddr],[NumRegs],[RegMask],[RegPagAddr]
Level 7 'u': Rev 0011.0000, Overlay, Enable/Disable Write Fault, u[Op]
Level 7 'v': Rev 0003.0000, Overlay, GetPvt, v[StartingSuperBlock],[NumSuperBlocks],[OutputFormat],[Options]
Level 7 'w': Rev 0011.0000, Overlay, Save Adaptives To Flash, w[Seg],,22
Level 7 'y': Rev 0011.0000, Overlay, Set DERP Retry State, y[Type],[PathState],[RetryStateCnt],[LoopCnt1],[LoopCnt2]
Level 8 'C': Rev 0011.0000, Overlay, Servo Diag Sub Cmds, C[SubCmd],[Parm0],[Parm1],[Parm2]
Level 8 'R': Rev 0012.0000, Overlay, Read Current Servo Destination, R
Level 8 'S': Rev 0011.0000, Overlay, Seek to Logical Cylinder and Head, S[Cyl],[Hd],[Offset],[OffsetUnitsOpt],[SkType],[Options]
Level 8 'U': Rev 0011.0000, Overlay, Spin Up Drive, U[HoldState],[Hd],[Cyl]
Level 8 'Z': Rev 0011.0000, Overlay, Spin Down Drive, Z
Level 8 'd': Rev 0001.0000, Overlay, Head Smash Test, d[HeadDirection],[AccelerationDuration],[DecelerationDuration],[AccelerationCurrent],[DecelerationCurrent]
Level A 'F': Rev 0020.0001, Flash, Translate LBA, F[LbaHi],[LbaLo],[SysAreaOpt],[NumLbas]
Level A 'G': Rev 0020.0000, Flash, Translate Host LBA, G[LbaHi],[LbaLo],[NumLbas]
Level A 'C': Rev 0020.0000, Overlay, Translate PBA, C[PbaHi],[PbaLow],[NumPbas]
Level A 'D': Rev 0020.0000, Overlay, Translate Symbols From Index, D[PhyCyl],[Hd],[Sfi],[NumSfis]
Level A 'E': Rev 0015.0000, Overlay, Display / Edit Log, E[LogNum],[ErrCodeOrSpecialFuncKey],[SpecialFunc]
Level A 'M': Rev 0011.0000, Overlay, Set Controller Test Port, M[Port],[Value]
Level A 'P': Rev 0013.0001, Overlay, Merge Alt List into Slip List, P[RADIAL_PAD_IN_TRACKS],[CIRCUMFERENTIAL_PAD_SINGLE_IN_WEDGES],[CIRCUMFERENTIAL_PAD_MULTI_IN_WEDGES],[OPTIONS]
Level A 'Q': Rev 0011.0001, Overlay, Write, Read, Read LBA, Q[Lba],[NumLbas],[Opts]
Level A 'R': Rev 0012.0000, Overlay, Read LBA, R[Lba],[NumLbas],,[Opts]
Level A 'S': Rev 0011.0000, Overlay, Seek to LBA, S[LbaHi],[LbaLo],[Offset],[OffsetUnitsOpt],[SkType],[Options]
Level A 'T': Rev 0001.0000, Overlay, GetLbaTracks, T[Zone],[Head]
Level A 'V': Rev 0001.0001, Overlay, SeqThroughputByLba, V[Operation],[StartHostLba],[EndHostLba],[XferLenInHostBlks],[SampleCount],[Options]
Level A 'W': Rev 0012.0002, Overlay, Write LBA, W[Lba],[NumLbas],,[Opts]
Level A 'Y': Rev 0012.0001, Overlay, Set Retries - DERP, Y[Mode],[MaxRdRetries],[MaxWrtRetries],,[Options]
Level A 'c': Rev 0020.0000, Overlay, Translate Logical Cylinder, Logical Head and Logical Sector, c[Cyl],[Hd],[Sec],[SysAreaOpt],[NumSecs]
Level A 'd': Rev 0020.0000, Overlay, Translate Physical Cylinder, Logical Head and Physical Sector, d[Cyl],[Hd],[Sec],[NumSecs]
Level A 'e': Rev 0020.0000, Overlay, Translate Nominal Cylinder and Logical Head, e[Cyl],[Hd],[Sec],[SysAreaOpt]
Level A 'f': Rev 0020.0000, Overlay, Translate Physical Cylinder, Logical Head and Physical Wedge, f[Cyl],[Hd],[Wdg],[NumWdgs]
Level A 'g': Rev 0001.0002, Overlay, Write Band, g[Band],[Offset],[Count],[Options]
Level A 'h': Rev 0001.0002, Overlay, Read Band, g[Band],[Offset],[Count],[Options]
Level A 'l': Rev 0016.0001, Overlay, Display Track Information, l[LogCyl],[Hd],[SysAreaOpt],[Opts],[RowsPerPage]
Level A 'q': Rev 0001.0001, Overlay, q[RWQoptions], [StartLba],[TransferLength],,[Opts]
Level A 'y': Rev 0011.0000, Overlay, Set DERP Retry State, y[Type],[PathState],[RetryStateCnt],[LoopCnt1],[LoopCnt2]
Level C 'B': Rev 0001.0001, Overlay, Display Channel Status List Data
Level C 'C': Rev 0001.0000, Overlay, Display Select Channel Register, C[ChannelRegAsciiString]
Level C 'D': Rev 0003.0000, Overlay, Display Channel Memory, D[MemorySelect],[StartAddress],[NumberOfSymbols],[BufferSelect]
Level C 'E': Rev 0001.0000, Overlay, Display Bonanza Memory Size, E
Level C 'G': Rev 0001.0000, Overlay, Set Channel Status List Triggers,[mask]
Level C 'H': Rev 0001.0000, Overlay, Set Channel Status List Thresholds,[action],[value]
Level C 'Q': Rev 0001.0000, Overlay, Display ASCII Command Information, Q[CmdLevel],[Cmd]
Level C 'S': Rev 0000.0000, Overlay, Display Channel Status List Status
Level C 'T': Rev 0012.0000, Overlay, Goop Plot, T[Hd],[StartTrk],[EndTrk],[ECCLvl],[NoFrcSync],[SkipCnt]
Level C 'W': Rev 0001.0000, Overlay, DisplayModifyMegaCache, W[BitMask],[StartHostLBA],[EndHostLBA],[MaxCount]
Level C 'a': Rev 0001.0000, Overlay, InjectChannelADC, a
Level E 'B': Rev 0012.0001, Overlay, Write Wedge, B[WedgeAddr],[NumWedges],[NumSkipedWedges],[TranSize],[Opt],[RegAddr0],...,[RegAddr13],[TSpacing]
Level E 'C': Rev 0011.0001, Overlay, Read Wedge, C[WedgeAddr],[NumWedges],[NumSkipedWedges],[TranSize],[Opts],[RegAddr0],...,[RegAddr13]
Level E 'G': Rev 0001.0000, Overlay, HeadDegradation, G[OperationControlOptions],[MeasurementControlOptions]
Level E 'm': Rev 0011.0000, Overlay, Fast MSESER Measurement, m[]
Level E 'n': Rev 0001.0000, Overlay, Dibit Extraction, n[sctr],[cnt],[dibit],[dibit],[dibit],[skip],[trim],[dsply]
Level E 'o': Rev 0011.0000, Overlay, Fine RW Offset Measurement, o[NumAvgs],[TrkStepSize],[NumGuardTrks]
Level E 'w': Rev 0011.0002, Overlay, Slow Write CHS, w[Sec],[NumSecs],[ConSec],[Skip],[UnitOfSkip]
Level F 'b': Rev 0011.0000, Flash, Set Baud Rate, b[BaudRate],[MsecDelay]
Level F 'B': Rev 0011.0000, Overlay, Buffer Display, B[DisplayBlk],[RefBlk],[NumBlks],[Opts],[SymBits]
Level F 'C': Rev 0011.0000, Overlay, Buffer Copy, C[SrcBlk],[DestBlk],[NumBlks]
Level F 'D': Rev 0011.0001, Overlay, Memory Block Display, D[AddrHi],[AddrLo],[CompVal],[NumBytes],[Opts],[SizeInBytes]
Level F 'I': Rev 0001.0000, Overlay, IdleTaskControl, I[enable]
Level F 'P': Rev 0011.0000, Overlay, Set Buffer Pattern, P[PatternSelOrPatternLow],[PatternHi],[PatternBits],[Opts],[BlkNum],[NumBlks]
Level F 'R': Rev 0002.0000, Overlay, Displays BER Count, R[Head],[SingleHeadZone]
Level F 'U': Rev 0011.0000, Overlay, Spin Up Drive, U[HoldState],[Hd],[Cyl]
Level F 'V': Rev 0011.0000, Overlay, Buffer Compare, V[SrcBlk],[RefBlk],[NumBlks],[ContOnErr]
Level F 'Y': Rev 0012.0001, Overlay, Set Retries - DERP, Y[Mode],[MaxRdRetries],[MaxWrtRetries],,[Options]
Level F 'Z': Rev 0011.0000, Overlay, Spin Down Drive, Z
Level F 'c': Rev 0001.0000, Overlay, SctPassthrough, F[SCT Mode],[Action],[Function],[KeyByte0_3],[KeyByte4_7],...,[KeyByte28_31]
Level F 'd': Rev 0002.0001, Overlay, Dither, d[ClearDitherCountInfo]
Level F 'g': Rev 0001.0000, Overlay, ConfigureGPIOTestPins, g[SubCmd]
Level F 'p': Rev 0002.0000, Overlay, GetSetPartitionAttributes, p[dsk sz],[sparing],[restore parms],[host blks per dsk],[PI type]
Level F 'r': Rev 0011.0001, Overlay, Read System CHS, r[LogSec],[NumSecs],[Opts]
Level F 's': Rev 0011.0000, Overlay, Seek to Physical Cylinder and Head, s[Cyl],[Hd],[ValidKey],[Offset],[OffsetUnitsOpt],[SkType],[Options]
Level F 't': Rev 0011.0000, Overlay, Write Peripheral Register - channel or preamp, t[OpType],[RegAddr],[RegValue],[RegMask],[RegPagAddr]
Level F 'y': Rev 0011.0000, Overlay, Set DERP Retry State, y[Type],[PathState],[RetryStateCnt],[LoopCnt1],[LoopCnt2]
Level F 'z': Rev 0011.0000, Overlay, SataDebug, z[SubCmd],[Parm1],[Parm2],[Parm3]
Level G 'B': Rev 0011.0000, Overlay, Fill Correction Buffer, B[StartAddr],[EndAddr],[Pattern],[Opts]
Level G 'C': Rev 0011.0000, Overlay, Copy Correction Buffer, C[SrcAddr],[DestAddr],[NumSyms]
Level G 'D': Rev 0011.0000, Overlay, Display Correction Buffer, D[StartAddr],[EndAddr],[CompareData]
Level G 'E': Rev 0001.0000, Overlay, ToggleEdacEnable, E
Level G 'F': Rev 0011.0000, Overlay, Fill Super Parity RAM, F[StartAddr],[EndAddr],[Pattern]
Level H 'J': Rev 0001.0000, Flash, Enable S/W Emulation
Level H 'B': Rev 0011.0000, Overlay, Buffer Display, B[DisplayBlk],[RefBlk],[NumBlks],[Opts],[SymBits]
Level H 'I': Rev 0001.0000, Overlay, Serial Identify, I[Strt],[Cnt]
Level H 'P': Rev 0011.0000, Overlay, Set Buffer Pattern, P[PatternSelOrPatternLow],[PatternHi],[PatternBits],[Opts],[BlkNum],[NumBlks]
Level H 'S': Rev 0011.0000, Overlay, Seek to Logical Cylinder and Head, S[Cyl],[Hd],[Offset],[OffsetUnitsOpt],[SkType],[Options]
Level H 'f': Rev 0004.0000, Overlay, DisplayModifyFafhParms, f[Options],[ParmValue],[Ix0],[Ix1],[Ix2],[Ix3],[Ix4],[Ix5],[Ix6],[Ix7],[InitParmFileEnable]
Level H 'l': Rev 0002.0001, Overlay, DisplayFafhHistoryLog, l[Options],[Interval],[Frame],[Head],[Diameter],[ClearLogEnable]
Level H 'q': Rev 0002.0000, Overlay, DisplayFafhConfig, q
Level H 't': Rev 0001.0001, Overlay, TriggerFafh, t[Count]
Level L 'C': Rev 0011.0000, Overlay, Copy Log File, C[SrcLog],[DestLog],[AppendOpt]
Level L 'D': Rev 0013.0000, Overlay, Display Log File, D[Log],[ErrCode]
Level L 'E': Rev 0011.0001, Overlay, Enable / Disable Logging, E[ErrLoggingOpt],[AsciiLoggingOpt],[RwStatsLoggingOpt]
Level L 'I': Rev 0011.0000, Overlay, Display Log FileInfo, I[Log]
Level L 'R': Rev 0001.0000, Overlay, Read SMART Log, R[LogAddr],[LengthInBytes],[Offset],[Options]
Level L 'W': Rev 0001.0000, Overlay, Write SMART Log, M[LogAddr],[LengthInBytes],[Offset],[Options],[StringValueForOptns]
Level L 'c': Rev 0011.0000, Overlay, Create Log File, c[Log],[LogType],[BufferOrDiskOpt],[NumBytes]
Level L 'd': Rev 0011.0000, Overlay, Delete Log File, d[Log]
Level L 'i': Rev 0011.0000, Overlay, Initialize Log File, i[Log]
Level M 's': Rev 0002.0000, Overlay, Serial Port Test Results, s[Sub-command],[SptIndex],[ValidKey]
Level M 'l': Rev 0001.0000, Overlay, Loopback, l
Level T 'B': Rev 0011.0000, Flash, Set Baud Rate, B[BaudRate],[MsecDelay]
Level T 'V': Rev 0029.0001, Flash, Display Defect Lists, V[ListMask],[Hd],[StartCyl],[NumCyls],[Summary],[FlagsMask]
V1 - User Area Slip List : Rev 1.0
V2 - System Area Slip List : Rev 1.0
V4 - Reassigned Sectors List aka "Alt List" : Rev 2.0
V8 - Servo Flaws List : Rev 1.0
V10 - Primary Defect List aka "PLIST" : Rev 1.0
V20 - Primary Servo Flaws List : Rev 1.0
V40 - Nonresident G List : Rev 1.0
V80 - Resident G List : Rev 1.0
V100 - Primary DST List : Rev 1.0
V200 - Data Scrub List aka "Mickey Cert List" : Re
Level T 'm': Rev 0019.0339, Flash, Format Partition, m[Partition],[FormatOpts],[DefectListOpts],[MaxWrRetryCnt],[MaxRdRetryCnt],[MaxEccTLevel],[MaxCertifyTrkRewrites],[ValidKey],[DataPattern]
Level T 'E': Rev 0015.0000, Overlay, Display / Edit Log, E[LogNum],[ErrCodeOrSpecialFuncKey],[SpecialFunc]
Level T 'F': Rev 0011.0000, Overlay, Display / Modify Congen, F[ValueRef],[Data],[ResetEnable]
Level T 'J': Rev 0012.0000, Overlay, Display / Modify CAP, J[ParmValue],[ParmId],[ParmArrayBytes],[ParmByteArrayOffset]
Level T 'O': Rev 0001.0000, Overlay, Select Data Output Mode, O[Mode],[VerboseOpts]
Level T 'P': Rev 0011.0000, Overlay, Download Generic File, P[FileBytes]
Level T 'R': Rev 0012.0000, Overlay, Read Non-Volatile Adaptive Parameters, R[Opts]
Level T 'S': Rev 0001.0000, Overlay, Reset drive customer settings, SHIP,[ParmValue]
Level T 'W': Rev 0011.0000, Overlay, Save Adaptives To Flash, W[Seg],,22
Level T 'i': Rev 0011.0004, Overlay, Initialize Defect List, i[DefectListSelect],[SaveListOpt],[ValidKey]
Level T 'r': Rev 0001.0000, Overlay, Read File, r[FileId],[VolumeNum],[CopyNum],[ByteOffset],[Length],[OutputFmt]
Level T 'q': Rev 0002.0000, Overlay, List Physical Head Table, q
Level T 'w': Rev 0001.0000, Overlay, Write File, w[FileId],[VolumeNum],[CopyNum],[ByteOffset]
Level T 'y': Rev 0004.0000, Overlay, List SIM files, y[Volume], [FileDescriptor], [Option]
Level T '[': Rev 0011.0000, Overlay, ASCII Log Control, [[LogFunction],[Log]