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Viking PSFEM1xxxGQxxx manual Off-line Mode, SATA Commands, Native Command Queuing NCQ

Models: PSFEM1xxxGQxxx

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5.1.2.2Off-line Mode

A:Number of free blocks when SSD changes to Write protect mode. (Plane)

B:Maximum Acceptable Number of Bad Blocks (Plane)

C:Number of Maximum Bad Blocks (Plane)

D:Number of free blocks when SSD changes to Write protect mode. (All Plane)

E:Acceptable Number of Bad Blocks (All Plane)

5.1.2.2Off-line Mode

SSD’s support the optional 28-bit S.M.A.R.T. EXECUTION OFF-LINE IMMEDIATE (B0h/D4h) command per the ATA-8 specification. This command causes the SSD to initiate the collection of S.M.A.R.T. data in an off-line mode and then preserves this data across power and reset events. Supported subcommands include those shown in the table below. Reference the ATA-8 specification for subcommand detail.

Table 5-7: Supported S.M.A.R.T. EXECUTE OFF-LINE IMMEDIATE

Subcommands

Value	Description
00h	Execute S.M.A.R.T. off-line routine immediately in off-line mode

01h	Execute S.M.A.R.T. Short self-test routine immediately in off-line mode

02h	Execute S.M.A.R.T. Extended self-test routine immediately in off-line mode

04h	Execute S.M.A.R.T. Selective self-test routine immediately in off-line mode
7Fh	Abort off-line mode self-test routine
81h	Execute S.M.A.R.T. Short self-test routine immediately in captive mode

82h	Execute S.M.A.R.T. Extended self-test routine immediately in captive mode

84h	Execute S.M.A.R.T. Selective self-test routine immediately in captive mode

5.2 SATA Commands

The SATA 2.6 specification is a super set of the ATA/ATAPI-7 specification with regard to supported commands. SSD’s support the following features that are unique to the SATA specification.

5.2.1 Native Command Queuing (NCQ)

SSD’s support the Native Command Queuing (NCQ) command set, which consists of

•READ FPDMA QUEUED

•WRITE FPDMA QUEUED

Note: With a maximum queue depth less than or equal to 32.

Manual

PSFEM1xxxGQxxx

Revision B www.vikingtechnology.com

9/11/2014

Viking Technology

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Viking PSFEM1xxxGQxxx manual Off-line Mode, SATA Commands, Native Command Queuing NCQ

Contents

Manual PSFEM1xxxGQxxx SATA 3Gb/s Industrial Slim SATA Manual9/11/2014 Viking Technology Page 1 of Description Revision HistoryDate RevisionLegal Information Legal InformationTemperature Ordering Information Slim SATA SSD Solid-State DriveInterface Slim SATA Top View Product PicturesIndustrial SSD - Viking’s Industrial SSD contains sophisticated provisions to protect firmware and data from corruption due to unexpected power loss. However, a Industrial SSD by industry definition does not contain on-board capacitance. Should power fail unexpectedly, “in-flight” write data may be lost. Industrial SSD’s are best used in designs that manage power fail events at the system level 5 COMMAND SETS Table of Contents2 PRODUCT SPECIFICATIONS PIN AND SIGNAL DESCRIPTIONSSATA Commands REFERENCESGLOSSARY ATA CommandsTable of Figures Table of Tables1 Introduction 1.1 FeaturesFigure 1-1 High-Level Block Diagram for VRFEM1xxxGQxxx 1.2 Block Diagram1.3 SATA Interface 2.2 Timing 2 Product SpecificationsTable 2-3 Timing Specifications 2.1 Performance2.3.2 Supply Voltage 2.3 Electrical Characteristics2.2.1 STANDBY IMMEDIATE Command 2.3.1 Absolute Maximum RatingsTable 2-8 Temperature and Altitude Related Specifications 2.3.3 Power Consumption2.4.1 Temperature and Altitude Table 2-7 Typical Power Consumption2.5 Reliability Table 2-10 Reliability Specifications2.6 Data Security 3 Mechanical Information Figure 3-1 DimensionsFigure 4-1 Layout of Signal and Power Segment Pins 4 Pin and Signal Descriptions3.1 Slim SATA SSD Weight Signal and Power Description TablesTable 5-1 Supported ATA Commands 5 Command Sets5.1 ATA Commands Table 4-2 Serial ATA Power Pin DefinitionsRead Sectors Ext Set Max Address Ext Write DMA Ext Write Multiple Ext 5.1.1 48-Bit Address Command SetSSD supports the 48-Bit Address command set consisting of Flush Cache Ext Read DMA Ext Read native Max Address Ext5.1.5 Host Protected Area Command Set 5.1.2 ATA General Feature Command Set5.1.3 Device Configuration Overlay Command Set 5.1.4 General Purpose Log Command Set5.1.7 Security Mode Feature Set 5.1.6 Power Management Command SetTable 5-2 List of Device Identification 5.1.8 Identify Device DataDescription Default ValueWord V VariableDescription Default ValueWord V VariableTable 5-3 Capacity specific Device Identification 5.1.1 S.M.A.R.T. Support5.1.2 S.M.A.R.T. Command Set 5.1.2.1 Extended SMART Attributes Table 5-4 S.M.A.R.T. Command SetTable 5-5 Extended SMART Attribute Table SMART Attribute Table 5-6 Extended SMART Attribute Actual DataDescription Fla7 = 100*Max Erase Count- F1a4/Flash PE Cycle MLC 3000, SLC FormulaFla4 = Total Erase Count / disk Total Blocks average Erase Count Fla6 = 100 * D- Total Bad Block Count / D-E Max = 100, Min =5.1.2.2 Off-line Mode 5.2 SATA Commands5.2.1 Native Command Queuing NCQ Table 5-7 Supported S.M.A.R.T. EXECUTE OFF-LINE IMMEDIATE SubcommandsSerial ATA Specification, Revision 6 References7 Glossary