Seagate ST800FM0022 Pulsar.2 SAS Product Manual - Page 42

P

ULSAR

.2 SAS P

RODUCT

M

ANUAL

, R

EV

. C

36

8.5

D

ATA BANDS

When shipped from the factory, the drive is configured with a single data band called Band 0 (also known as the Global Data Band) which

comprises LBA 0 through LBA max. The host may 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 14 Data Bands may be defined in a similar way (Band2 through Band15) but before

these bands can be allocated LBA space, they must first be individually enabled using the EraseMaster password.

Data bands cannot overlap but they can be sequential with one band ending at LBA (x) and the next beginning at LBA (x+1).

Each data band has its own drive-generated encryption key and its own user-supplied password. The host may change the Encryption Key

(see Section 8.6) or the password when required. The bands shall be aligned to 4KB LBA boundaries.

8.6

C

RYPTOGRAPHIC ERASE

A significant feature of SEDs is the ability to perform a cryptographic erase. This involves the host telling the drive to change the data

encryption key for a particular band. Once changed, the data is no longer recoverable since it was written with one key and will be read

using a different key. Since the drive overwrites the old key with the new one, and keeps no history of key changes, the user data can

never be recovered. This is tantamount to an instantaneous data erase and is very useful if the drive is to be scrapped or redispositioned.

8.7

A

UTHENTICATED FIRMWARE DOWNLOAD

In addition to providing a locking mechanism to prevent unwanted firmware download attempts, the drive also only accepts download files

which have been cryptographically signed by the appropriate Seagate Design Center.

Three conditions must be met before the drive will allow the download operation:

1.

The download must be an SED file. A standard (base) drive (non-SED) file will be rejected.

2.

The download file must be signed and authenticated.

3.

As with a non-SED drive, the download file must pass the acceptance criteria for the drive. For example it must be applicable to the

correct drive model, and have compatible revision and customer status.

8.8

P

OWER REQUIREMENTS

The standard drive models and the SED drive models have identical hardware, 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 30mA and

a commensurate increase of about 150mW in power consumption. There is no additional drain on the 12V supply. See the tables in

Section 6.3 for power requirements on the standard (non-SED) drive models.

8.9

S

UPPORTED COMMANDS

The SED models support the following two commands in addition to the commands supported by the standard (non-SED) models as listed

in Table 16:

•

SECURITY PROTOCOL OUT (B5h)

•

SECURITY PROTOCOL IN (A2h)

8.10

S

ANITIZE

- C

RYPTOGRAPHIC

E

RASE

This command cryptographically erases all user data on the drive by destroying the current data encryption key and replacing it with a new

data encryption key randomly generated by the drive.

Sanitize CRYPTOGRAPHIC ERASE is a SCSI CDB Op code 48h and selecting the

service action code 3 (CRYPTOGRAPHIC ERASE).

8.11

R

EVERT

SP

SED models will support the RevertSP feature which erases all data in all bands on the device and returns the contents of all SPs (Security

Providers) on the device to their original factory state. In order to execute the RevertSP method the unique PSID (Physical Secure ID)

printed on the drive label must be provided.

PSID is not electronically accessible and can only be manually read from the drive label or

scanned in via the 2D barcode.

8.12

S

ANITIZE

F

EATURE

S

ET ON

SED D

RIVES

The drive shall support the Sanitize Feature Set as defined in ANSI/INCITS ACS-2 with the exceptions and/or modifications described in

this section.

The drive shall not support the OVERWRITE EXT and BLOCK ERASE EXT sub-commands.

Support of the SANITIZE FREEZE LOCK EXT command shall be determined on a customer-specific basis. OEM drives shall support the

command.

Section	Page
Pulsar®.2 SAS	1
Seagate Technology Support Services	7
1.0 Scope	8
2.0 Applicable standards and reference documentation	9
2.1 Standards	9
2.1.1 Electromagnetic compatibility	9
2.1.2 Electromagnetic compliance	10
2.1.3 European Union Restriction of Hazardous Substances (RoHS)	10
2.1.4 China Restriction of Hazardous Substances (RoHS) Directive	11
2.2 Reference documents	11
3.0 General description	12
3.1 Standard features	12
3.2 Media description	13
3.3 Performance	13
3.4 Reliability	13
3.5 Formatted capacities	13
3.6 Programmable drive capacity	14
3.7 Factory-installed options	14
3.8 Thin Provisioning	14
3.8.1 Logical Block Provisioning	14
3.8.2 Thin Provisioning capabilities	14
3.8.3 UNMAP	15
3.8.4 FORMAT UNIT command	15
3.8.5 Protection Information (PI) and Security (SED)	15
4.0 Performance characteristics	16
4.1 Internal drive characteristics	16
4.2 Performance characteristics	16
4.2.1 Access time	16
4.2.2 FORMAT UNIT command execution time for 512-byte LBA’s (minutes)	16
4.2.3 Performance	17
4.3 Start/stop time	18
4.4 Cache control	18
4.4.1 Caching write data	18
5.0 Reliability specifications	19
5.1 Error rates	19
5.1.1 Unrecoverable Errors	19
5.1.2 Interface errors	19
5.2 Endurance Management	20
5.2.1 Wear Leveling	20
5.2.2 Garbage Collection	20
5.2.3 Write Amplification	20
5.2.4 UNMAP	20
5.2.5 Data Retention	20
5.2.6 Lifetime Endurance Management (Available on select models)	20
5.2.7 SSD Percentage Used Endurance Indicator	20
5.3 Reliability and service	21
5.3.1 Annualized Failure Rate (AFR) and Mean Time Between Failure (MTBF)	21
5.3.2 Preventive maintenance	21
5.3.3 Hot plugging the drive	21
5.3.4 S.M.A.R.T.	21
5.3.5 Thermal monitor	22
5.3.6 Drive Self Test (DST)	23
5.3.7 Product warranty	24
6.0 Physical/electrical specifications	25
6.1 Power specifications	25
6.1.1 Power consumption	25
6.2 AC power requirements	25
6.3 DC power requirements	26
6.3.1 Conducted noise immunity	30
6.3.2 Power sequencing	30
6.3.3 Current profiles	30
6.4 Power dissipation	33
6.5 Environmental limits	34
6.5.1 Temperature	35
6.5.2 Relative humidity	35
6.5.3 Effective altitude (sea level)	35
6.5.4 Shock and vibration	36
6.5.5 Air cleanliness	37
6.5.6 Corrosive environment	37
6.5.7 Electromagnetic susceptibility	37
6.6 Mechanical specifications	38
7.0 About FIPS	40
8.0 About self-encrypting drives	41
8.1 Data encryption	41
8.2 Controlled access	41
8.2.1 Admin SP	41
8.2.2 Locking SP	41
8.2.3 Default password	41
8.3 Random number generator (RNG)	41
8.4 Drive locking	41
8.5 Data bands	42
8.6 Cryptographic erase	42
8.7 Authenticated firmware download	42
8.8 Power requirements	42
8.9 Supported commands	42
8.10 Sanitize - Cryptographic Erase	42
8.11 RevertSP	42
8.12 Sanitize Feature Set on SED Drives	42
9.0 Defect and error management	43
9.1 Drive internal defects/errors	43
9.2 Drive error recovery procedures	44
9.3 SAS system errors	44
9.4 Background Media Scan	44
9.5 Auto-Reallocation	44
9.6 Protection Information (PI)	45
9.6.1 Levels of PI	45
9.6.2 Setting and determining the current Type Level	45
9.6.3 Identifying a Protection Information drive	45
10.0 Installation	46
10.1 Drive orientation	46
10.2 Cooling	46
10.3 Drive mounting	47
10.4 Grounding	47
11.0 Interface requirements	48
11.1 SAS features	48
11.1.1 Task management functions	48
11.1.2 Task management responses	48
11.2 Dual port support	48
11.3 SCSI commands supported	49
11.3.1 INQUIRY data	53
11.3.2 MODE SENSE data	54
11.4 Miscellaneous operating features and conditions	59
11.4.1 SAS physical interface	59
11.4.2 Physical characteristics	62
11.4.3 Connector requirements	62
11.4.4 Electrical description	62
11.4.5 Pin descriptions	62
11.4.6 SAS transmitters and receivers	63
11.4.7 Power	63
11.5 Signal characteristics	63
11.5.1 Ready LED Out	63
11.5.2 Differential signals	64
11.6 SAS-2 Specification compliance	64

Seagate ST800FM0022 Pulsar.2 SAS Product Manual - Page 42

Ata Bands, Ryptographic Erase, Uthenticated Firmware Download, Ower Requirements, Upported Commands

Page 42 highlights