Seagate ST200FX0002 사용자 설명서

10

Pulsar XT.2 SAS Product Manual, Rev. B

When a region of LBA's are erased via cryptographic erase, as part of the erase, the drive shall unmap those 
LBAs.

If the host attempts to access an unmapped or trimmed LBA, the drive shall return scrambled data. For a given 
LBA, the data shall be identical from access to access, until that LBA is either updated with actual data from 
the host or that LBA is cryptographically erased. The drive shall report a value of '0' in the LBPRZ field returned 
in the READ CAPACITY (16) parameter data.

If the host attempts to access an unmapped LBA on a drive that has been formatted with Protection Informa-
tion (PI), the drive shall return scrambled PI data for that LBA. Depending on the value of the RDPROTECT 
field in the data-access command CDB, this may result in the drive returning a standard PI error to the host.

If the host reduces the addressable capacity of the drive via a MODE SELECT command, the drive shall 
unmap or trim any LBA within the inaccessible region of the device.

Additionally, an UNMAP command is not permitted on a locked band.

0

1

0

1

1

1

1

1

1

1

0

0

N/A

Yes

No

N/A

Yes

No

 

0x00

0x00

0x00

Random

None

Random

 

None

0xFF

0xFF

None

None

Scrambled

 

PI data

N/A

No

No

N/A

Yes

No

No

No

No

No

Yes

No