Cheetah 15K.5 SAS Product Manual
Page 14
...up to dynamically adjust segments for enhanced system performance. • 300 Mbytes/sec maximum instantaneous data transfers. • 15k RPM spindle. improved seek performance 8 Cheetah 15K.5 SAS Product Manual, Rev. Average latency = 2.0 msec • Background processing of 320 bits • No ...correction length of queue • Supports start and stop commands (spindle stops spinning) • Adaptive seek velocity; 3.1 Standard features Cheetah drives have the following standard features: • 1.5 / 3 Gbit Serial Attached SCSI (SAS) interface • Integrated dual port...
...up to dynamically adjust segments for enhanced system performance. • 300 Mbytes/sec maximum instantaneous data transfers. • 15k RPM spindle. improved seek performance 8 Cheetah 15K.5 SAS Product Manual, Rev. Average latency = 2.0 msec • Background processing of 320 bits • No ...correction length of queue • Supports start and stop commands (spindle stops spinning) • Adaptive seek velocity; 3.1 Standard features Cheetah drives have the following standard features: • 1.5 / 3 Gbit Serial Attached SCSI (SAS) interface • Integrated dual port...
Cheetah 15K.5 SAS Product Manual
Page 17
... operating environment and formatting. **Rounded off value. 4.2 Seek time See Section 9.4.1, "SAS physical interface" on a representative sample of Cheetah drives. 4.1 Internal drive characteristics Drive capacity Read/write data heads Tracks per surface (total) Tracks per inch Peak bits per inch ... (user accessible) TPI KBPI Gbits/inch2 Mbits/sec (variable with zone) RPM msec *One Gbyte equals one billion bytes when referring to data = access time + latency time. E 11 Cheetah 15K.5 SAS Product Manual, Rev. Access to hard drive capacity. 4.0 Performance characteristics...
... operating environment and formatting. **Rounded off value. 4.2 Seek time See Section 9.4.1, "SAS physical interface" on a representative sample of Cheetah drives. 4.1 Internal drive characteristics Drive capacity Read/write data heads Tracks per surface (total) Tracks per inch Peak bits per inch ... (user accessible) TPI KBPI Gbits/inch2 Mbits/sec (variable with zone) RPM msec *One Gbyte equals one billion bytes when referring to data = access time + latency time. E 11 Cheetah 15K.5 SAS Product Manual, Rev. Access to hard drive capacity. 4.0 Performance characteristics...
Cheetah 15K.5 SAS Product Manual
Page 31
...simultaneously, the peak starting current must be available to each supply voltage is not less than spindle start but before reaching 15,000 RPM. Where power is provided to multiple drives from DC to 10 MHz. Where multiple units are relocated every 60 seconds to a ...random distribution of the maximum operating current shown. 2. Note: All times and currents are shown below are measured after a 10-minute warm up. 5. Cheetah 15K.5 SAS Product Manual, Rev. The ±5% must be noted. E 25 The +5V and +12V supplies should be maintained after the drive signifies that...
...simultaneously, the peak starting current must be available to each supply voltage is not less than spindle start but before reaching 15,000 RPM. Where power is provided to multiple drives from DC to 10 MHz. Where multiple units are relocated every 60 seconds to a ...random distribution of the maximum operating current shown. 2. Note: All times and currents are shown below are measured after a 10-minute warm up. 5. Cheetah 15K.5 SAS Product Manual, Rev. The ±5% must be noted. E 25 The +5V and +12V supplies should be maintained after the drive signifies that...
Cheetah 15K.5 FC Product Manual
Page 17
... Decimal 143,374,744 140,395,092 137,577,184 136,331,467 Hex 88BB998 85E4254 83342E0 82040CB 2. Seagate designs specify capacity points at a given sector size, but the user must determine if the extra capacity potential... the drive shall not Cheetah 15K.5 FC Product Manual, Rev. improved seek performance 3.4 Reliability • Annualized Failure Rate (AFR) of blocks field indicates that Seagate guarantees current and future products will vary between 10K and 15K families and from generation... = 2.0 msec • Command queuing of up to 512 bytes per port • 15k RPM spindle;
... Decimal 143,374,744 140,395,092 137,577,184 136,331,467 Hex 88BB998 85E4254 83342E0 82040CB 2. Seagate designs specify capacity points at a given sector size, but the user must determine if the extra capacity potential... the drive shall not Cheetah 15K.5 FC Product Manual, Rev. improved seek performance 3.4 Reliability • Annualized Failure Rate (AFR) of blocks field indicates that Seagate guarantees current and future products will vary between 10K and 15K families and from generation... = 2.0 msec • Command queuing of up to 512 bytes per port • 15k RPM spindle;
Cheetah 15K.5 FC Product Manual
Page 19
... vary depending on operating environment and formatting. 4.2 Seek performance characteristics See Section 9.5, "FC-AL physical interface" on a representative sample of Cheetah 15K.5 FC drives. 4.1 Internal drive characteristics Drive capacity* Read/write data heads Bytes per track Tracks per inch Peak bits per inch Areal...125,000 890k 890k 110 110 960 to 1607 960 to 1607 15k 15k 2.0 2.0 Gbytes (formatted, rounded off value) Bytes (average, rounded off values) TPI BPI Gbits/inch2 Mbits/sec (variable with zone) rpm msec *One Gbyte equals one billion bytes when referring to data...
... vary depending on operating environment and formatting. 4.2 Seek performance characteristics See Section 9.5, "FC-AL physical interface" on a representative sample of Cheetah 15K.5 FC drives. 4.1 Internal drive characteristics Drive capacity* Read/write data heads Bytes per track Tracks per inch Peak bits per inch Areal...125,000 890k 890k 110 110 960 to 1607 960 to 1607 15k 15k 2.0 2.0 Gbytes (formatted, rounded off value) Bytes (average, rounded off values) TPI BPI Gbits/inch2 Mbits/sec (variable with zone) rpm msec *One Gbyte equals one billion bytes when referring to data...
Cheetah 15K.5 FC Product Manual
Page 32
... after the drive signifies that its power-up sequence has been completed and that the drive is able to ±5% before reaching 15000 RPM. Power supply at 309 s I/Os per second for ST373455FC model 1 Gbit Notes (Amps) Voltage +5V Regulation [5] ±5% Avg... 2.70 1.60 (Amps) +12V [2] ±5% [2] 0.53 2.08 3.65 0.03 0.87 0.93 2.62 Table 4: DC power requirements for ST3300655FC and 24 Cheetah 15K.5 FC Product Manual, Rev. Specified voltage tolerance includes ripple, noise, and transient response. [6] Operating condition is allowed during initial spindle start (max) DC 3σ...
... after the drive signifies that its power-up sequence has been completed and that the drive is able to ±5% before reaching 15000 RPM. Power supply at 309 s I/Os per second for ST373455FC model 1 Gbit Notes (Amps) Voltage +5V Regulation [5] ±5% Avg... 2.70 1.60 (Amps) +12V [2] ±5% [2] 0.53 2.08 3.65 0.03 0.87 0.93 2.62 Table 4: DC power requirements for ST3300655FC and 24 Cheetah 15K.5 FC Product Manual, Rev. Specified voltage tolerance includes ripple, noise, and transient response. [6] Operating condition is allowed during initial spindle start (max) DC 3σ...
Cheetah 15K.7 FC Product Manual
Page 14
...this product are formatted to generation. We recommend customers use this capacity in their assurance of backward and forward compatibility takes precedence. 8 Cheetah 15K.7 FC Product Manual, Rev. C The current guaranteed operating points for this manner gives the absolute maximum capacity potential, but the ...585,937,500 573,653,848 566,007,800 557,874,778 Hex 22ECB25C 22314358 21BC97F8 21407E5A Seagate drives also may range from generation to 512 bytes per port • 15k RPM spindle; average latency = 2.0 msec • Command queuing of up to 1.3 percent above the...
...this product are formatted to generation. We recommend customers use this capacity in their assurance of backward and forward compatibility takes precedence. 8 Cheetah 15K.7 FC Product Manual, Rev. C The current guaranteed operating points for this manner gives the absolute maximum capacity potential, but the ...585,937,500 573,653,848 566,007,800 557,874,778 Hex 22ECB25C 22314358 21BC97F8 21407E5A Seagate drives also may range from generation to 512 bytes per port • 15k RPM spindle; average latency = 2.0 msec • Command queuing of up to 1.3 percent above the...
Cheetah 15K.7 FC Product Manual
Page 16
...depending on operating environment and formatting. 5.2 Seek performance characteristics See Section 12.5, "FC-AL physical interface" on a representative sample of Cheetah 15K.7 FC drives. 5.1 Internal drive characteristics Drive capacity Read/write data heads Tracks per inch Peak bits per inch Areal Density Internal data...,000 1,361 225 1.49 - 2.37 15k 2.0 Gbytes (formatted, rounded off value)* TPI KBPI Gbits/inch2 Gbits/sec (max) RPM msec *One Gbyte equals one billion bytes when referring to data = access time + latency time. 10 Cheetah 15K.7 FC Product Manual, Rev. Access to hard...
...depending on operating environment and formatting. 5.2 Seek performance characteristics See Section 12.5, "FC-AL physical interface" on a representative sample of Cheetah 15K.7 FC drives. 5.1 Internal drive characteristics Drive capacity Read/write data heads Tracks per inch Peak bits per inch Areal Density Internal data...,000 1,361 225 1.49 - 2.37 15k 2.0 Gbytes (formatted, rounded off value)* TPI KBPI Gbits/inch2 Gbits/sec (max) RPM msec *One Gbyte equals one billion bytes when referring to data = access time + latency time. 10 Cheetah 15K.7 FC Product Manual, Rev. Access to hard...
Cheetah 15K.7 FC Product Manual
Page 29
... terminator power. N (number of the maximum operating current shown. 2. The +5V and +12V supplies should be available to maximum track. General DC power requirement notes. 1. Cheetah 15K.7 FC Product Manual, Rev. Parameters, other than 1.2% of drives tested) = 6, 35 Degrees C ambient. [2] For +12 V, a -10% tolerance is allowed during initial spindle start ... separate ground returns. 3. Where multiple units are measured after the drive signifies that the drive is able to ±5% before reaching 15000 RPM. Where power is defined as random 8 block reads at nominal voltage.
... terminator power. N (number of the maximum operating current shown. 2. The +5V and +12V supplies should be available to maximum track. General DC power requirement notes. 1. Cheetah 15K.7 FC Product Manual, Rev. Parameters, other than 1.2% of drives tested) = 6, 35 Degrees C ambient. [2] For +12 V, a -10% tolerance is allowed during initial spindle start ... separate ground returns. 3. Where multiple units are measured after the drive signifies that the drive is able to ±5% before reaching 15000 RPM. Where power is defined as random 8 block reads at nominal voltage.
Cheetah 15K.7 SAS Product Manual
Page 13
... and environmental protection. 4.3 Performance • Programable multi-segmented cache buffer • 600 Mbytes/sec maximum instantaneous data transfers • 15k RPM spindle. Average latency = 2.0 msec • Background processing of 320 bits • No preventive maintenance or adjustments required •...Dynamic spindle brake • 16 Mbyte data buffer • Drive Self Test • Background Media Scan • Power Save Cheetah 15K.7 SAS SED models have the following additional features: • Automatic data encryption/decryption on all writes and reads to 32 ...
... and environmental protection. 4.3 Performance • Programable multi-segmented cache buffer • 600 Mbytes/sec maximum instantaneous data transfers • 15k RPM spindle. Average latency = 2.0 msec • Background processing of 320 bits • No preventive maintenance or adjustments required •...Dynamic spindle brake • 16 Mbyte data buffer • Drive Self Test • Background Media Scan • Power Save Cheetah 15K.7 SAS SED models have the following additional features: • Automatic data encryption/decryption on all writes and reads to 32 ...
Cheetah 15K.7 SAS Product Manual
Page 15
...on operating environment and formatting. 5.2 Seek time See Section 12.4.1, "SAS physical interface" on a representative sample of Cheetah 15K.7 drives. 5.1 Internal drive characteristics Drive capacity ST3600057SS ST3600957SS ST3600857SS 600 ST3450857SS ST3300657SS ST3450757SS ST3300557SS ST3450657SS ST3300457SS 450 300 Gbytes.../inch2 Internal data rate 1.49 - 2.37 1.49 - 2.37 1.49 - 2.37 Gbits/sec (max) Disk rotation speed 15k 15k 15k RPM Avg rotational latency 2.0 2.0 2.0 msec *One Gbyte equals one billion bytes when referring to data = access time + latency time...
...on operating environment and formatting. 5.2 Seek time See Section 12.4.1, "SAS physical interface" on a representative sample of Cheetah 15K.7 drives. 5.1 Internal drive characteristics Drive capacity ST3600057SS ST3600957SS ST3600857SS 600 ST3450857SS ST3300657SS ST3450757SS ST3300557SS ST3450657SS ST3300457SS 450 300 Gbytes.../inch2 Internal data rate 1.49 - 2.37 1.49 - 2.37 1.49 - 2.37 Gbits/sec (max) Disk rotation speed 15k 15k 15k RPM Avg rotational latency 2.0 2.0 2.0 msec *One Gbyte equals one billion bytes when referring to data = access time + latency time...
Cheetah 15K.7 SAS Product Manual
Page 29
... after OOB and Speed Negotiation completes but before reaching 15,000 RPM. N (number of drives tested) = 6, 35 Degrees C ambient. [2] For +12 V, a -10% tolerance is able to ±5% before the drive has received the Notify Spinup primitive. [5] See paragraph 7.2.1, "Conducted noise immunity." Cheetah 15K.7 SAS Product Manual, Rev. Specified voltage tolerance includes ripple, noise...
... after OOB and Speed Negotiation completes but before reaching 15,000 RPM. N (number of drives tested) = 6, 35 Degrees C ambient. [2] For +12 V, a -10% tolerance is able to ±5% before the drive has received the Notify Spinup primitive. [5] See paragraph 7.2.1, "Conducted noise immunity." Cheetah 15K.7 SAS Product Manual, Rev. Specified voltage tolerance includes ripple, noise...
Cheetah 15K.6 FC Product Manual
Page 15
... and environmental protection. 3.3 Performance • Programmable multi-segmentable cache buffer • 400 Mbytes/sec maximum instantaneous data transfers per block. Cheetah 15K.6 FC Product Manual, Rev. Refer to 128 commands • Background processing of the supported sizes listed in the block descriptor number of... project planning, as it is rounded down to 512 bytes per port • 15k RPM spindle; See the Mode Select Parameter List table in the number of blocks field indicates that Seagate guarantees current and future products will meet. A value of zero in the SCSI...
... and environmental protection. 3.3 Performance • Programmable multi-segmentable cache buffer • 400 Mbytes/sec maximum instantaneous data transfers per block. Cheetah 15K.6 FC Product Manual, Rev. Refer to 128 commands • Background processing of the supported sizes listed in the block descriptor number of... project planning, as it is rounded down to 512 bytes per port • 15k RPM spindle; See the Mode Select Parameter List table in the number of blocks field indicates that Seagate guarantees current and future products will meet. A value of zero in the SCSI...
Cheetah 15K.6 FC Product Manual
Page 17
... Not including controller overhead1,2(msec) Read Write 3.4 3.9 0.20 0.44 6.6 7.4 1. Typical access times are measured under nominal conditions of Cheetah 15K.6 FC drives. 4.1 Internal drive characteristics Drive capacity* Read/write data heads Tracks per inch Peak bits per inch Areal density Internal data...8 150,000 1,100k 165 1.95 15k 2.0 ST3300656FC ST3300056FC 300 6 150,000 1,100k 165 1.95 15k 2.0 ST3146356FC ST3146756FC 146 3 150,000 1,100k 165 1.95 15k 2.0 Gbytes (formatted, rounded off value) TPI BPI Gbits/inch2 Gbits/sec (max) rpm msec *One Gbyte equals one billion bytes...
... Not including controller overhead1,2(msec) Read Write 3.4 3.9 0.20 0.44 6.6 7.4 1. Typical access times are measured under nominal conditions of Cheetah 15K.6 FC drives. 4.1 Internal drive characteristics Drive capacity* Read/write data heads Tracks per inch Peak bits per inch Areal density Internal data...8 150,000 1,100k 165 1.95 15k 2.0 ST3300656FC ST3300056FC 300 6 150,000 1,100k 165 1.95 15k 2.0 ST3146356FC ST3146756FC 146 3 150,000 1,100k 165 1.95 15k 2.0 Gbytes (formatted, rounded off value) TPI BPI Gbits/inch2 Gbits/sec (max) rpm msec *One Gbyte equals one billion bytes...
Cheetah 15K.6 FC Product Manual
Page 32
... by the host initiator. [3] See +12V current profile in Figure 1. [4] This condition occurs when the Motor Start option is able to ±5% before reaching 15000 RPM. Power supply at nominal voltage. Instantaneous +12V current peaks will exceed these values. Table 6: ST3146356FC DC power requirements Voltage Regulation Avg idle current DCX Maximum... drive signifies that its power-up sequence has been completed and that the drive is enabled and the drive has not yet received a Start 26 Cheetah 15K.6 FC Product Manual, Rev.
... by the host initiator. [3] See +12V current profile in Figure 1. [4] This condition occurs when the Motor Start option is able to ±5% before reaching 15000 RPM. Power supply at nominal voltage. Instantaneous +12V current peaks will exceed these values. Table 6: ST3146356FC DC power requirements Voltage Regulation Avg idle current DCX Maximum... drive signifies that its power-up sequence has been completed and that the drive is enabled and the drive has not yet received a Start 26 Cheetah 15K.6 FC Product Manual, Rev.
Cheetah 15K.6 SAS Product Manual
Page 12
... when power is no significant performance difference between FDE and non-FDE models. 8 Cheetah 15K.6 SAS Product Manual, Rev. There is applied to dynamically adjust segments for SAS ... • Firmware downloadable using the SAS interface • 128 - 3.1 Standard features Cheetah 15K.6 drives have the following additional features: • Automatic data encryption/decryption on all...16 Mbyte data buffer • Drive Self Test • Background Media Scan • Power Save Cheetah 15K.6 SAS FDE models have the following standard features: • 1.5 / 3 Gbit Serial Attached ...
... when power is no significant performance difference between FDE and non-FDE models. 8 Cheetah 15K.6 SAS Product Manual, Rev. There is applied to dynamically adjust segments for SAS ... • Firmware downloadable using the SAS interface • 128 - 3.1 Standard features Cheetah 15K.6 drives have the following additional features: • Automatic data encryption/decryption on all...16 Mbyte data buffer • Drive Self Test • Background Media Scan • Power Save Cheetah 15K.6 SAS FDE models have the following standard features: • 1.5 / 3 Gbit Serial Attached ...
Cheetah 15K.6 SAS Product Manual
Page 15
...vary depending on operating environment and formatting. 4.2 Seek time See Section 9.4.1, "SAS physical interface" on a representative sample of Cheetah 15K.6 drives. 4.1 Internal drive characteristics Drive capacity ST3450856SS ST3300656SS ST3146356SS ST3450056SS ST3300056SS ST3146756SS 450 300 146 Gbytes (formatted, rounded off ...100 165 1,100 165 KBPI Gbits/inch2 Internal data rate 1.95 1.95 1.95 Gbits/sec (max) disk rotation speed 15k 15k 15k RPM Avg rotational latency 2.0 2.0 2.0 msec *One Gbyte equals one billion bytes when referring to data = access time +...
...vary depending on operating environment and formatting. 4.2 Seek time See Section 9.4.1, "SAS physical interface" on a representative sample of Cheetah 15K.6 drives. 4.1 Internal drive characteristics Drive capacity ST3450856SS ST3300656SS ST3146356SS ST3450056SS ST3300056SS ST3146756SS 450 300 146 Gbytes (formatted, rounded off ...100 165 1,100 165 KBPI Gbits/inch2 Internal data rate 1.95 1.95 1.95 Gbits/sec (max) disk rotation speed 15k 15k 15k RPM Avg rotational latency 2.0 2.0 2.0 msec *One Gbyte equals one billion bytes when referring to data = access time +...
Cheetah 15K.6 SAS Product Manual
Page 30
...35 Degrees C ambient. [2] For +12 V, a -10% tolerance is defined as random 8 block reads at nominal voltage. No terminator power. 26 Cheetah 15K.6 SAS Product Manual, Rev. Instantaneous +12V current peaks will exceed these values. Specified voltage tolerance includes ripple, noise, and transient response. [6] Operating ...condition is allowed during initial spindle start but before reaching 15,000 RPM. Power supply at 330 I/Os per second for 450GB models, and 347 I/Os per second for 300GB and 1465GB models....
...35 Degrees C ambient. [2] For +12 V, a -10% tolerance is defined as random 8 block reads at nominal voltage. No terminator power. 26 Cheetah 15K.6 SAS Product Manual, Rev. Instantaneous +12V current peaks will exceed these values. Specified voltage tolerance includes ripple, noise, and transient response. [6] Operating ...condition is allowed during initial spindle start but before reaching 15,000 RPM. Power supply at 330 I/Os per second for 450GB models, and 347 I/Os per second for 300GB and 1465GB models....
Cheetah 15K.5 SCSI Product Manual
Page 14
...,467 Hex 88BB998 867E068 85E4254 8500BB2 83342E0 82040CBh 2. Seagate designs specify capacity points at format time. Using the drives in one of backward and forward compatibility takes precedence. 8 Cheetah 15K.5 SCSI Product Manual, Rev. J 4.3 Performance ...8226; Supports industry standard Ultra320 SCSI interface • Programmable multi-segmentable cache buffer (see Section 5.5) • 15k RPM spindle. Average latency = 2.0 msec •...
...,467 Hex 88BB998 867E068 85E4254 8500BB2 83342E0 82040CBh 2. Seagate designs specify capacity points at format time. Using the drives in one of backward and forward compatibility takes precedence. 8 Cheetah 15K.5 SCSI Product Manual, Rev. J 4.3 Performance ...8226; Supports industry standard Ultra320 SCSI interface • Programmable multi-segmentable cache buffer (see Section 5.5) • 15k RPM spindle. Average latency = 2.0 msec •...
Cheetah 15K.5 SCSI Product Manual
Page 16
...performance characteristics (visible to user) The values given in Section 5.2.1 apply to the Parallel SCSI Interface Manual for additional timing details. 10 Cheetah 15K.5 SCSI Product Manual, Rev. 5.0 Performance characteristics 5.1 Internal drive characteristics (transparent to user) Drive capacity Read/write heads Tracks/surface ... 125,000 890k 110 960 to 1607 15k 2.0 ST373455LW ST373455LC 73.4 2 74,340 125,000 890k 110 960 to 1607 15k 2.0 GBytes (formatted)*,** Tracks (user accessible) TPI BPI Gbits/inch2 Mbits/sec (variable with zone) rpm msec * One Gbyte equals one billion ...
...performance characteristics (visible to user) The values given in Section 5.2.1 apply to the Parallel SCSI Interface Manual for additional timing details. 10 Cheetah 15K.5 SCSI Product Manual, Rev. 5.0 Performance characteristics 5.1 Internal drive characteristics (transparent to user) Drive capacity Read/write heads Tracks/surface ... 125,000 890k 110 960 to 1607 15k 2.0 ST373455LW ST373455LC 73.4 2 74,340 125,000 890k 110 960 to 1607 15k 2.0 GBytes (formatted)*,** Tracks (user accessible) TPI BPI Gbits/inch2 Mbits/sec (variable with zone) rpm msec * One Gbyte equals one billion ...