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Seagate Enterprise Performance 10K HDD v8 Product Manual, Rev. A

  38

  

8.5.1

Levels of PI

There are 4 types of Protection Information.

Type 0

 - Describes a drive that is not formatted with PI information bytes. This allows for legacy support in non-PI systems.

Type 1

 - Provides support of PI protection using 10 and 16 byte commands. The RDPROTECT and WRTPROTECT bits allow for 

checking control through the CDB. Eight bytes of Protection Information are transmitted at LBA boundaries across the interface if 
RDPROTECT and WRTPROTECT bits are nonzero values. Type 1 does not allow the use of 32 byte commands.

Type 2

 - Provides checking control and additional expected fields within the 32 byte CDBs. Eight bytes of Protection Information are

 

transmitted at LBA boundaries across the interface if RDPROTECT and WRTPROTECT bits are nonzero values. Type 2 does allow the

 

use of 10 and 16 byte commands with zero values in the RDPROTECT and WRTPROTECT fields. The drive will generate 8 bytes 
(e.g.0xFFFF) 8 bytes of Protection Information to be stored on the media, but the 8 bytes will not be transferred to the host during a

 

read command.

Type 3

 - Seagate products do not support Type 3.

8.5.2

Setting and determining the current Type Level 

A drive is initialized to a type of PI by using the format command on a PI capable drive. Once a drive is formatted to a PI Type, it may

 

be queried by a Read Capacity (16) command to report the PI type which it is currently formatted to. PI Types cannot coexist on a

 

single drive. A drive can only be formatted to a single PI Type. It can be changed at anytime to a new Type but requires a low level 
format which destroys all existing data on the drive. No other vehicle for changing the PI type is provided by the T10 SBC3

 

specification.

Type 1 PI format CDB command: 04 90 00 00 00 00,   Write Buffer: 00 A0 00 00

Type 2 PI format CDB command: 04 D0 00 00 00 00,   Write Buffer: 00 A0 00 00

8.5.3

Identifying a Protection Information drive

The Standard Inquiry provides a bit to indicate if PI is support by the drive. Vital Product Descriptor (VPD) page 0x86 provides bits to

 

indicate the PI Types supported and which PI fields the drive supports checking.

8.6

Seagate RAID Rebuild 

™

Seagate RAID Rebuild is an industry standard feature to enable faster recovery from a failed drive in a RAID configuration. It improves 
RAID rebuild performance by extracting easily readable data from a failing drive. It quickly identifies blocks that would take longer to

 

recover from the failed drive than to rebuild from the remaining drives in the RAID group.

This feature allows host control of error recovery, maximizes up time, and minimizes likelihood of 2nd drive failure in a RAID

 

configuration.

Note

For further details with respect to PI, please refer to SCSI Block 
Commands - 3 (SBC-3) Draft Standard documentation.

Содержание ST300MM0048

Страница 1: ...100799987 Rev A July 2016 Standard Models ST600MM0208 ST300MM0048 Self Encrypting Drive Models ST600MM0218 ST300MM0058 Enterprise Performance 10K HDD v8 SAS Product Manual...

Страница 2: ...hen referring to drive capacity one gigabyte or GB equals one billion bytes and one terabyte or TB equals one trillion bytes Your computer s operating system may use a different standard of measuremen...

Страница 3: ...ptions 12 4 0 Performance characteristics 13 4 1 Internal drive characteristics 13 4 2 Performance characteristics 13 4 2 1 Format command execution time minutes 13 4 2 2 General performance character...

Страница 4: ...romagnetic susceptibility 31 6 6 Mechanical specifications 32 7 0 About self encrypting drives 33 7 1 Data encryption 33 7 2 Controlled access 33 7 2 1 Admin SP 33 7 2 2 Locking SP 33 7 2 3 Default pa...

Страница 5: ...rt 41 10 3 SCSI commands supported 42 10 3 1 Inquiry data 46 10 3 2 Mode Sense data 47 10 4 Miscellaneous operating features and conditions 50 10 4 1 SAS physical interface 50 10 4 2 Physical characte...

Страница 6: ...put output operations per second 28 Figure 4 300GB at 12Gb DC current and power vs input output operations per second 28 Figure 5 Recommended mounting 30 Figure 6 Mounting configuration dimensions 32...

Страница 7: ...s For information regarding Warranty Support visit http www seagate com support warranty and replacements For information regarding data recovery services visit http www seagate com services software...

Страница 8: ...on specifications or requirements If integrators are designing a system which will use one of the models listed or future generation products and need further assistance please contact the Field Appli...

Страница 9: ...however it is the user s responsibility to assure that the drive meets the appropriate EMI requirements in their system Shielded I O cables may be required if the enclosure does not provide adequate...

Страница 10: ...procedures that ensure that restricted substances are not utilized in our manufacturing operations laboratory analytical validation testing and an internal auditing process to ensure that all standar...

Страница 11: ...76 xxx SCSI Architecture Model 3 SAM 4 Standard T10 1683 D ISO IEC 14776 xxx SCSI Primary Commands 3 SPC 3 Standard T10 1416 D ISO IEC 14776 xxx SCSI Block Commands 3 SBC 2 Standard T10 1417 D ANSI Sm...

Страница 12: ...a low inertia balanced patented straight arm design that provides excellent performance with minimal power dissipation in any orientation 3 1 Standard features Seagate Enterprise Performance 10K HDD d...

Страница 13: ...drive capacity Using the Mode Select command the drive can change its capacity to something less than maximum See the Mode Select 6 parameter list table in the SAS Interface Manual part number 1002930...

Страница 14: ...4 2 1 Format command execution time minutes Execution time measured from receipt of the last byte of the Command Descriptor Block CDB to the request for a Status Byte Transfer to the Initiator excludi...

Страница 15: ...enabled and disabled independently using the Mode Select command however in actual operation the prefetch feature overlaps cache operation somewhat as described in sections 4 5 1 and 4 5 2 All defaul...

Страница 16: ...um and Good status has already been returned a deferred error will be generated The Synchronize Cache command may be used to force the drive to write all cached write data to the medium Upon completio...

Страница 17: ...ions but not caused by the read If an unrecoverable data error is detected a MEDIUM ERROR 03h in the Sense Key will be reported Multiple unrecoverable data errors resulting from the same cause are tre...

Страница 18: ...e When a disk is powered on by switching the power or hot plugged the drive runs a self test before attempting to communicate on its interfaces When the self test completes successfully the drive init...

Страница 19: ...essing delay is summarized below Reporting control Reporting is controlled by the MRIE bits in the Informational Exceptions Control mode page 1Ch Subject to the reporting method For example if the MRI...

Страница 20: ...porting Informational Exceptions field MRIE on the Informational Exceptions Control IEC mode page 1Ch 5 2 6 Drive Self Test DST Drive Self Test DST is a technology designed to recognize drive fault co...

Страница 21: ...hort test or 010b for the extended test in bytes 1 bits 5 6 and 7 5 2 6 2 3 Short and extended tests DST has two testing options 1 short 2 extended These testing options are described in the following...

Страница 22: ...ort the diagnostic To abort a DST executing in background mode use the abort code in the DST Function Code field This will cause a 01 self test aborted by the application client code to appear in the...

Страница 23: ...de page START STOP UNIT command method Use the START STOP UNIT command OPERATION CODE 1Bh This allows the host to directly transition the drive to any supported PowerChoice mode If both the Power Cond...

Страница 24: ...and accumulated Start Stops and Load Unload cycles Power Condition Transitions Log Page reports log page 0x1A subpage 0x00 Accumulated transitions to Active Idle_A Idle_B Idle_C Standby_Y Standby_Z 6...

Страница 25: ...ting current peak DC DC 3 0 73 1 00 peak AC AC 3 0 90 1 35 Delayed motor start max DC 1 4 0 31 0 06 2 30 Operating current random read Typical DC 1 6 0 37 0 35 6 01 Maximum DC 1 0 39 0 36 6 24 Maximum...

Страница 26: ...ition is defined as random 4K block reads 7 During idle the drive heads are relocated every 30 seconds to a random location within the band from three quarters to maximum track Table 3 300GB 5xx nativ...

Страница 27: ...start are measured after a 10 minute warm up 5 No terminator power 6 3 1 Conducted noise immunity Noise is specified as a periodic and random distribution of frequencies covering a defined frequency...

Страница 28: ...Seagate Enterprise Performance 10K HDD v8 Product Manual Rev A 27 Figure 2 Current profiles for 300GB models Note All times and currents are typical See Section 6 3 for maximum current requirements...

Страница 29: ...ical axis To calculate BTUs per hour multiply watts by 3 4123 Figure 3 600GB at 12Gb DC current and power vs input output operations per second 300GB models in 12Gb operation To obtain operating power...

Страница 30: ...o condensation on the drive occurs Maximum wet bulb temperature is 84 2 F 29 C a Operating 5 to 95 non condensing relative humidity with a maximum gradient of 20 per hour b Non operating 5 to 95 non c...

Страница 31: ...ve Shock may be applied in the X Y or Z axis Shock is not to be repeated more than once every 2 seconds b Non operating The limits of non operating shock shall apply to all conditions of handling and...

Страница 32: ...ery potential application environment Users should use caution exposing any electronic components to uncontrolled chemical pollutants and corrosive chemicals as electronic drive component reliability...

Страница 33: ...ed mounting configuration dimensions See Section 9 3 Drive mounting Figure 6 Mounting configuration dimensions Weight 600GB models 490 pounds 222 kilograms 300GB models 481 pounds 218 kilograms Note T...

Страница 34: ...to the host system The DEK is itself encrypted when it is stored on the media and when it is in volatile temporary storage DRAM external to the encryption engine A unique data encryption key is used...

Страница 35: ...y allocate Band1 by specifying a start LBA and an LBA range The real estate for this band is taken from the Global Band An additional 30 Data Bands may be defined in a similar way Band2 through Band31...

Страница 36: ...e however the security and encryption portion of the drive controller ASIC is enabled and functional in the SED models This represents a small additional drain on the 5V supply of about 10mA and a com...

Страница 37: ...s error recovery procedures to attempt to recover the data The error recovery procedures used depend on the options previously set in the Error Recovery Parameters mode page Error recovery and defect...

Страница 38: ...rewrite fails the sector is re mapped to a spare location This is in contrast to the system having to use the Reassign Command to reassign a location that was unreadable and then generate a write com...

Страница 39: ...drive Once a drive is formatted to a PI Type it may be queried by a Read Capacity 16 command to report the PI type which it is currently formatted to PI Types cannot coexist on a single drive A drive...

Страница 40: ...ted in any orientation All drive performance characterizations however have been done with the drive in horizontal discs level and vertical drive on its side orientations which are the two preferred m...

Страница 41: ...and X is the out of plane surface distortion units in inches or millimeters The out of plane distortion X is determined by defining a plane with three of the four mounting points fixed and evaluating...

Страница 42: ...he same or different SCSI domains Each drive port has a unique SAS address The two ports have the capability of independent port clocking e g both ports can run at 12Gb s or the first port can run at...

Страница 43: ...e Code page C1h Y Device Behavior page C3h Y Device Identification page 83h Y Extended Inquiry Data page 86h Y Firmware Numbers page C0h Y Jumper Settings page C2h Y Mode Page policy page 87h N Power...

Страница 44: ...Y Information Exceptions Control page 1Ch Y Background Scan mode subpage 01h Y Notch and Partition Page 0Ch N Protocol Specific Port page 19h Y Power Condition page 1Ah Y Rigid Disk Drive Geometry pa...

Страница 45: ...tize Exit Y Security Protocol In A2h Y SED models only Security Protocol Out B5h Y SED models only Seek 6 0Bh Y Seek 10 2Bh Y Send Diagnostics 1Dh Y Rebuild Assist page 42h Y Supported Diagnostics pag...

Страница 46: ...me to complete this command for a SED drive versus a non SED drive of the same capacity 6 Write alignment counters supported 7 Mode Fh is the only activation method supported with mode Eh Write and Ve...

Страница 47: ...he product serial number Bytes 16 through 26 reflect model of drive The table above shows the hex values for Model ST600MM0208 Refer to the values below for the values of bytes 16 through 26 of a part...

Страница 48: ...tion on the media prior to shipping 3 Current values Current values are volatile values being used by the drive to control its operation A Mode Select command can be used to change the values identifi...

Страница 49: ...07 0A 00 14 FF 00 00 00 00 00 FF FF CHG 07 0A 0F FF 00 00 00 00 00 00 FF FF DEF 08 12 14 00 FF FF 00 00 FF FF FF FF 80 20 00 00 00 00 00 00 CHG 08 12 A5 00 00 00 FF FF FF FF 00 00 20 00 00 00 00 00 00...

Страница 50: ...07 0A 00 14 FF 00 00 00 00 00 FF FF CHG 07 0A 0F FF 00 00 00 00 00 00 FF FF DEF 08 12 14 00 FF FF 00 00 FF FF FF FF 80 20 00 00 00 00 00 00 CHG 08 12 A5 00 00 00 FF FF FF FF 00 00 20 00 00 00 00 00 0...

Страница 51: ...ts of Seagate s SAS drives are provided in the SAS Interface Manual Figure 9 Physical interface Table 11 Miscellaneous features Supported Feature or condition N Automatic contingent allegiance N Async...

Страница 52: ...Seagate Enterprise Performance 10K HDD v8 Product Manual Rev A 51 Figure 10 SAS device plug dimensions...

Страница 53: ...Seagate Enterprise Performance 10K HDD v8 Product Manual Rev A 52 Figure 11 SAS device plug dimensions detail...

Страница 54: ...SAS pin descriptions Short pin to support hot plugging Power Disable T10 Industry Standard for remote management of the end device Allows power cycling power saving to be controlled by the host via i...

Страница 55: ...return current must be distributed as evenly as possible among the pins Current to the drive through the long power pins may be limited by the system to reduce inrush current to the drive during hot...

Страница 56: ...amplitude and emphasis values to the channel The receiver still employs Decision Feedback Equalizer DFE and Feed Forward Equalizer FFE circuitry to accomplish this training 10 7 Additional information...

Страница 57: ...nited States 408 658 1000 ASIA PACIFIC Seagate Singapore International Headquarters Pte Ltd 7000 Ang Mo Kio Avenue 5 Singapore 569877 65 6485 3888 EUROPE MIDDLE EAST AND AFRICA Seagate Technology SAS...

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