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ST600MM0088
Seagate Enterprise Performance 10K v8 600Gb, 10000rpm, SAS 2.5" [Savvio 10K.8]
ЦЕНА: 13'500 грн.[б/н]
САЙТ ПРОИЗВОДИТЕЛЯ:
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Internal drive characteristics
Performance characteristics
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 (excluding connect/disconnect). When changing sector sizes, the format times shown above may need to be increased by 30 minutes.
Seagate Enterprise Performance 10K HDD v8 w/TurboBoost Product Manual, Rev. D 17 Start/stop time
The drive accepts the commands listed in the SAS Interface Manual less than 3 seconds after DC power has been applied. If the drive receives a NOTIFY (ENABLE SPINUP) primitive through either port and has not received a START STOP UNIT command with the START bit equal to 0, the drive becomes ready for normal operations within 20 seconds (excluding the error recovery procedure). If the drive receives a START STOP UNIT command with the START bit equal to 0 before receiving a NOTIFY (ENABLE SPINUP) primitive, the drive waits for a START STOP UNIT command with the START bit equal to 1. After receiving a START STOP UNIT command with the START bit equal to 1, the drive waits for a NOTIFY (ENABLE SPINUP) primitive. After receiving a NOTIFY (ENABLE SPINUP) primitive through either port, the drive becomes ready for normal operations within 20 seconds (excluding the error recovery procedure). If the drive receives a START STOP UNIT command with the START bit and IMMED bit equal to 1 and does not receive a NOTIFY (ENABLE SPINUP) primitive within 5 seconds, the drive fails the START STOP UNIT command. The START STOP UNIT command may be used to command the drive to stop the spindle. Stop time is 20 seconds (maximum) from removal of DC power. SCSI stop time is 20 seconds. There is no power control switch on the drive. However, power can be cycled on the drive by utilizing SAS Power Disable feature defined by T10 (i.e. drive Pin 3 high). Prefetch/multi-segmented cache control
The drive provides a prefetch (read look-ahead) and multi-segmented cache control algorithms that in many cases can enhance system performance. Cache refers to the drive buffer storage space when it is used in cache operations. To select this feature, the host sends the Mode Select command with the proper values in the applicable bytes in page 08h. Prefetch and cache operations are independent features from the standpoint that each is 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 default cache and prefetch mode parameter values (Mode Page 08h) for standard OEM versions of this drive family are given in Section 11.3.2.
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 (excluding connect/disconnect). When changing sector sizes, the format times shown above may need to be increased by 30 minutes.
Seagate Enterprise Performance 10K HDD v8 w/TurboBoost Product Manual, Rev. D 17 Start/stop time
The drive accepts the commands listed in the SAS Interface Manual less than 3 seconds after DC power has been applied. If the drive receives a NOTIFY (ENABLE SPINUP) primitive through either port and has not received a START STOP UNIT command with the START bit equal to 0, the drive becomes ready for normal operations within 20 seconds (excluding the error recovery procedure). If the drive receives a START STOP UNIT command with the START bit equal to 0 before receiving a NOTIFY (ENABLE SPINUP) primitive, the drive waits for a START STOP UNIT command with the START bit equal to 1. After receiving a START STOP UNIT command with the START bit equal to 1, the drive waits for a NOTIFY (ENABLE SPINUP) primitive. After receiving a NOTIFY (ENABLE SPINUP) primitive through either port, the drive becomes ready for normal operations within 20 seconds (excluding the error recovery procedure). If the drive receives a START STOP UNIT command with the START bit and IMMED bit equal to 1 and does not receive a NOTIFY (ENABLE SPINUP) primitive within 5 seconds, the drive fails the START STOP UNIT command. The START STOP UNIT command may be used to command the drive to stop the spindle. Stop time is 20 seconds (maximum) from removal of DC power. SCSI stop time is 20 seconds. There is no power control switch on the drive. However, power can be cycled on the drive by utilizing SAS Power Disable feature defined by T10 (i.e. drive Pin 3 high). Prefetch/multi-segmented cache control
The drive provides a prefetch (read look-ahead) and multi-segmented cache control algorithms that in many cases can enhance system performance. Cache refers to the drive buffer storage space when it is used in cache operations. To select this feature, the host sends the Mode Select command with the proper values in the applicable bytes in page 08h. Prefetch and cache operations are independent features from the standpoint that each is 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 default cache and prefetch mode parameter values (Mode Page 08h) for standard OEM versions of this drive family are given in Section 11.3.2.
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