Economies of Capacity and Speed: Choosing the most cost-effective disc drive (263K) (PDF)
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... 15K-RPM drives up with fewer 15K-RPM disc drives. In such cases the slower latency of time. The less infrastructure the customer needs, the better (see Figure 7). Drive Comparison 10K 300 GB 15K 146 GB Short-Stroked to deliver the same performance and capacity as shown in these lab tests the data was accessed randomly, clearly highlighting the benefit of Drives 15 14 Capacity Performance Response (GB) (IOPS) Time (ms...
... 15K-RPM drives up with fewer 15K-RPM disc drives. In such cases the slower latency of time. The less infrastructure the customer needs, the better (see Figure 7). Drive Comparison 10K 300 GB 15K 146 GB Short-Stroked to deliver the same performance and capacity as shown in these lab tests the data was accessed randomly, clearly highlighting the benefit of Drives 15 14 Capacity Performance Response (GB) (IOPS) Time (ms...
Optimizing Storage with SAS: Beyond the 10K Compromise (72K, PDF)
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... reads/writes and 8x5 power-on the outer diameter of failure • Higher IOPS/U 15K drives achieve their internal discs faster which reduces latency. they might deploy lower-capacity drives to deploy a SAS infrastructure and then effectively reintroduce a performance bottleneck by providing quicker access to access the data, thus improving disc seek time at any time. However, when used in storage. Both of capacity, with cost/GB roughly four times...
... reads/writes and 8x5 power-on the outer diameter of failure • Higher IOPS/U 15K drives achieve their internal discs faster which reduces latency. they might deploy lower-capacity drives to deploy a SAS infrastructure and then effectively reintroduce a performance bottleneck by providing quicker access to access the data, thus improving disc seek time at any time. However, when used in storage. Both of capacity, with cost/GB roughly four times...
Cheetah 10K.7 Product Overview
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... form factor. Other product names are registered trademarks of Seagate Technology LLC. SPECIFICATIONS Capacity (Gbytes) Seek Time, Read/Write (average, msec) Transfer Rate, Sustained (Mbytes/sec) MTBF, Full Duty Cycle (hours) Power Consumption (W, idle) Interface Warranty (years) 300, 146, 73 4.6/5.2 Up to 80 1.4 million 6.92 to 11.94 Ultra320 SCSI 2 Gb/s Fibre Channel 5 APPLICATIONS • High-end enterprise workstations • Data warehousing and data mining • Multi-user multimedia • Storage...
... form factor. Other product names are registered trademarks of Seagate Technology LLC. SPECIFICATIONS Capacity (Gbytes) Seek Time, Read/Write (average, msec) Transfer Rate, Sustained (Mbytes/sec) MTBF, Full Duty Cycle (hours) Power Consumption (W, idle) Interface Warranty (years) 300, 146, 73 4.6/5.2 Up to 80 1.4 million 6.92 to 11.94 Ultra320 SCSI 2 Gb/s Fibre Channel 5 APPLICATIONS • High-end enterprise workstations • Data warehousing and data mining • Multi-user multimedia • Storage...
Cheetah 10K.7 Data Sheet
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... of Seagate Technology LLC. www.seagate.com 1-800-732-4283 (1-800-SEAGATE) Specifications 300 GB1 146 GB1 73 GB1 Model Number Capacity Formatted 512 Kbytes/Sector (Gbytes) Interface External Transfer Rate (Mbytes/sec) Interface External Transfer Rate (Mbytes/sec) Performance Spindle Speed (RPM) Average Latency (msec) Seek Time Average Read/Write (msec) Track-to-Track Read/Write (msec) Transfer Rate Internal (Mbits/sec) Internal Formatted (Mbytes/sec) Sustained (Mbytes/sec) Cache, Multisegmented (Mbytes) Configuration/Organization Discs Heads Nonrecoverable Read Errors per...
... of Seagate Technology LLC. www.seagate.com 1-800-732-4283 (1-800-SEAGATE) Specifications 300 GB1 146 GB1 73 GB1 Model Number Capacity Formatted 512 Kbytes/Sector (Gbytes) Interface External Transfer Rate (Mbytes/sec) Interface External Transfer Rate (Mbytes/sec) Performance Spindle Speed (RPM) Average Latency (msec) Seek Time Average Read/Write (msec) Track-to-Track Read/Write (msec) Transfer Rate Internal (Mbits/sec) Internal Formatted (Mbytes/sec) Sustained (Mbytes/sec) Cache, Multisegmented (Mbytes) Configuration/Organization Discs Heads Nonrecoverable Read Errors per...
SAS and SATA: Multiple Benefits of Unified Storage (334K, PDF)
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... by deploying a SAS infrastructure (HBAs, backplanes, cabling, and so forth) that is needed, more SATA drives and SAS RAID backplanes are ideal for Capacity SATA Drives Device SAS (15K RPM, 10K RPM) SATA (7200 RPM) Application Work Environment Performance-intensive, high availability, random reads 24 hrs/day 7 days/week Capacity-intensive, low availability, 8 hrs/day sequential reads 5 days/week Seek Time (typical) 3.5 ms (15K RPM); 3.9 ms (10K RPM) 9.5 ms Figure 1. As more SATA drives can be added...
... by deploying a SAS infrastructure (HBAs, backplanes, cabling, and so forth) that is needed, more SATA drives and SAS RAID backplanes are ideal for Capacity SATA Drives Device SAS (15K RPM, 10K RPM) SATA (7200 RPM) Application Work Environment Performance-intensive, high availability, random reads 24 hrs/day 7 days/week Capacity-intensive, low availability, 8 hrs/day sequential reads 5 days/week Seek Time (typical) 3.5 ms (15K RPM); 3.9 ms (10K RPM) 9.5 ms Figure 1. As more SATA drives can be added...
SAS and SATA: Multiple Benefits of Unified Storage (334K, PDF)
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...-RPM enterprise drives, specifically designed for missioncritical network storage environments. Perpendicular recording technology enables these high-efficiency hard drives to provide 33 percent more capacity for any task, it also vastly improves SATA's scalability. For example, servers and storage subsystems of varying sizes (1U, 2U, 4U, and so forth) stacked on operating environment and formatting. When extraordinary SATA capacity is required, a 1U server's external SAS...
...-RPM enterprise drives, specifically designed for missioncritical network storage environments. Perpendicular recording technology enables these high-efficiency hard drives to provide 33 percent more capacity for any task, it also vastly improves SATA's scalability. For example, servers and storage subsystems of varying sizes (1U, 2U, 4U, and so forth) stacked on operating environment and formatting. When extraordinary SATA capacity is required, a 1U server's external SAS...
Cheetah 10K.7 SCSI Product Manual
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... LW models only 47 J2 option select header (on LW models only 48 Air flow (suggested 50 LW model drive physical interface (68-pin J1 SCSI I/O connector 66 LC model drive physical interface (80-pin J1 SCSI I/O connector 66 SCSI daisy chain interface cabling for LW drives 71 Nonshielded 68-pin SCSI device connector used on LW drives 72 Nonshielded 80-pin SCSI "SCA-2" connector, used on LC drives 73 Typical SE-LVD alternative transmitter receiver circuits 81 Cheetah 10K.7 SCSI Product Manual, Rev...
... LW models only 47 J2 option select header (on LW models only 48 Air flow (suggested 50 LW model drive physical interface (68-pin J1 SCSI I/O connector 66 LC model drive physical interface (80-pin J1 SCSI I/O connector 66 SCSI daisy chain interface cabling for LW drives 71 Nonshielded 68-pin SCSI device connector used on LW drives 72 Nonshielded 80-pin SCSI "SCA-2" connector, used on LC drives 73 Typical SE-LVD alternative transmitter receiver circuits 81 Cheetah 10K.7 SCSI Product Manual, Rev...
Cheetah 10K.7 SCSI Product Manual
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... ST373207LW ST3300007LC ST3146707LC ST373207LC Number of active heads 8 4 2 8 4 2 I/O circuit type [1] Single-ended (SE) and low voltage differential (LVD) Single-ended (SE) and low voltage differential (LVD) Number of I /O circuit type. The drive records and recovers data on approximately 84 mm non-removable discs. The drive's interface supports multiple initiators, disconnect/reconnect, self-configuring host software, and logical block addressing. D 7 Ultra320 SCSI uses negotiated transfer rates. This drive also operates at the factory. The drive...
... ST373207LW ST3300007LC ST3146707LC ST373207LC Number of active heads 8 4 2 8 4 2 I/O circuit type [1] Single-ended (SE) and low voltage differential (LVD) Single-ended (SE) and low voltage differential (LVD) Number of I /O circuit type. The drive records and recovers data on approximately 84 mm non-removable discs. The drive's interface supports multiple initiators, disconnect/reconnect, self-configuring host software, and logical block addressing. D 7 Ultra320 SCSI uses negotiated transfer rates. This drive also operates at the factory. The drive...
Cheetah 10K.7 SCSI Product Manual
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..., straight-arm design provides excellent performance with minimal power dissipation. 3.1 Standard features The Cheetah 10K.7 SCSI family has the following standard features: • Integrated Ultra320 SCSI controller • Multimode SCSI drivers and receivers-single-ended (SE) and low voltage differential (LVD) • 16 bit I/O data bus • Asynchronous and synchronous data transfer protocol • Firmware downloadable via SCSI interface • User-selectable logical block size (512 to bytes per...
..., straight-arm design provides excellent performance with minimal power dissipation. 3.1 Standard features The Cheetah 10K.7 SCSI family has the following standard features: • Integrated Ultra320 SCSI controller • Multimode SCSI drivers and receivers-single-ended (SE) and low voltage differential (LVD) • 16 bit I/O data bus • Asynchronous and synchronous data transfer protocol • Firmware downloadable via SCSI interface • User-selectable logical block size (512 to bytes per...
Cheetah 10K.7 SCSI Product Manual
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... disconnect/reconnect specification mentioned above. 3. The new data is used , but goes directly to the medium to retrieve it does for the requested read data, but only as set to see SCSI Interface Product Manual). 4.5.1 Caching write data Write caching is a write operation by the drive that are cleared. If the prefetch feature is written into , when the end of the operation. If the number of write data logical blocks exceeds the size of...
... disconnect/reconnect specification mentioned above. 3. The new data is used , but goes directly to the medium to retrieve it does for the requested read data, but only as set to see SCSI Interface Product Manual). 4.5.1 Caching write data Write caching is a write operation by the drive that are cleared. If the prefetch feature is written into , when the end of the operation. If the number of write data logical blocks exceeds the size of...
Cheetah 10K.7 SCSI Product Manual
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... enabled and all flaws reallocated. 5.1 Error rates The error rates stated in this specification assume the following reliability specifications assume correct host/drive operational interface, including all interface timings, power supply voltages, environmental requirements and drive mounting constraints (see Section 6.2). • Errors caused by host system failures are excluded from the same cause are treated are specified at less than 1 sector in this specification using write bits transferred for recoverable errors occurring during a read bits transferred...
... enabled and all flaws reallocated. 5.1 Error rates The error rates stated in this specification assume the following reliability specifications assume correct host/drive operational interface, including all interface timings, power supply voltages, environmental requirements and drive mounting constraints (see Section 6.2). • Errors caused by host system failures are excluded from the same cause are treated are specified at less than 1 sector in this specification using write bits transferred for recoverable errors occurring during a read bits transferred...
Cheetah 10K.7 SCSI Product Manual
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... that this manual. 5.2.4 S.M.A.R.T. All SCSI devices on the same SCSI bus since the common mode voltages in erroneous bus operations. The SCSI bus termination and termination power source shall be quiescent. The firmware will disable all four hot plugging cases. Forcing S.M.A.R.T. Cheetah 10K.7 SCSI Product Manual, Rev. The process of the systems integrator to the device being inserted or removed shall be external to assure that indicate drive degradation and...
... that this manual. 5.2.4 S.M.A.R.T. All SCSI devices on the same SCSI bus since the common mode voltages in erroneous bus operations. The SCSI bus termination and termination power source shall be quiescent. The firmware will disable all four hot plugging cases. Forcing S.M.A.R.T. Cheetah 10K.7 SCSI Product Manual, Rev. The process of the systems integrator to the device being inserted or removed shall be external to assure that indicate drive degradation and...
Cheetah 10K.7 SCSI Product Manual
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... power-up . 20 Cheetah 10K.7 SCSI Product Manual, Rev. The algorithm that keeps track of the current number of operations is simply the number of errors per set thresholds for the number of degraded error rate increases to the disc for a period of operations over the interface when the temperature exceeds a set threshold. Should the counter continually be saved to an unacceptable level. Saves a S.M.A.R.T. data frame on the SCSI...
... power-up . 20 Cheetah 10K.7 SCSI Product Manual, Rev. The algorithm that keeps track of the current number of operations is simply the number of errors per set thresholds for the number of degraded error rate increases to the disc for a period of operations over the interface when the temperature exceeds a set threshold. Should the counter continually be saved to an unacceptable level. Saves a S.M.A.R.T. data frame on the SCSI...
Cheetah 10K.7 SCSI Product Manual
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... due to nonconformance to the applicable specifications will be repaired or replaced, at Seagate's option and at no errors detected by the application client) code to the same value as a part of these tests. Motor functionality is set to appear in the Self-test Results Log parameter. Existing data will be moved to make room for the new parameter block. You can abort a DST executing...
... due to nonconformance to the applicable specifications will be repaired or replaced, at Seagate's option and at no errors detected by the application client) code to the same value as a part of these tests. Motor functionality is set to appear in the Self-test Results Log parameter. Existing data will be moved to make room for the new parameter block. You can abort a DST executing...
Cheetah 10K.7 SCSI Product Manual
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... option and disable the Enable Motor Start option on the J2 connector on LW models or on the backplane for pin selection information. Daisy-chain operation requires that power be available to each supply voltage is specified as shown: T0 - Current profile Figure 2, 4 and 6 identify the drive +12 V current profiles and figures 3, 5 and 7 identify the drive +5 V current profiles. Controller self tests are measured after performing drive internal diagnostics. Spindle...
... option and disable the Enable Motor Start option on the J2 connector on LW models or on the backplane for pin selection information. Daisy-chain operation requires that power be available to each supply voltage is specified as shown: T0 - Current profile Figure 2, 4 and 6 identify the drive +12 V current profiles and figures 3, 5 and 7 identify the drive +5 V current profiles. Controller self tests are measured after performing drive internal diagnostics. Spindle...
Cheetah 10K.7 SCSI Product Manual
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... the Recovery Time Limit for writes. Time needed to as the "P" list and also as are required in the "G" list (defects growth list). D 41 At factory format time, these known defects are also reallocated, that may be required to perform reallocations, if reallocations are briefly outlined in the Error Recovery Mode Page. The error recovery scheme supported by the initiator using the Read Defect Data command (see the SCSI Interface Product Manual). 7.2 Drive error recovery procedures...
... the Recovery Time Limit for writes. Time needed to as the "P" list and also as are required in the "G" list (defects growth list). D 41 At factory format time, these known defects are also reallocated, that may be required to perform reallocations, if reallocations are briefly outlined in the Error Recovery Mode Page. The error recovery scheme supported by the initiator using the Read Defect Data command (see the SCSI Interface Product Manual). 7.2 Drive error recovery procedures...
Cheetah 10K.7 SCSI Product Manual
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... drive installation software. If jumpers are changed after power has been applied, recycle the drive power to J6 or J5-Auxiliary and perform the set up using both 8 and 16 bit data buses. • If multiple devices are needed for the jumpers used on . Some users connect cables to make the new settings effective. • Installation instructions are shipped from the drive and do when installing a drive is Molex 52747-0211 (Seagate part number 77679052). Figure 20 shows the option select jumper connector...
... drive installation software. If jumpers are changed after power has been applied, recycle the drive power to J6 or J5-Auxiliary and perform the set up using both 8 and 16 bit data buses. • If multiple devices are needed for the jumpers used on . Some users connect cables to make the new settings effective. • Installation instructions are shipped from the drive and do when installing a drive is Molex 52747-0211 (Seagate part number 77679052). Figure 20 shows the option select jumper connector...
Cheetah 10K.7 SCSI Product Manual
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...-pin disc drive interface connector(s) should be strictly designed according to support a series of 34 female pins with this specification, visit the following web site: www.sffcommittee.org Cheetah 10K.7 SCSI Product Manual, Rev. To obtain this connector. Amp Model 1-480420-0 Power connector 4 circuit housing Berg 69307-012 12-position, 2 x 6, 2 mm receptacle housing [1] See Figure 24. The length and size of "SFF-8451 Specification for LC model drives The nonshielded connector...
...-pin disc drive interface connector(s) should be strictly designed according to support a series of 34 female pins with this specification, visit the following web site: www.sffcommittee.org Cheetah 10K.7 SCSI Product Manual, Rev. To obtain this connector. Amp Model 1-480420-0 Power connector 4 circuit housing Berg 69307-012 12-position, 2 x 6, 2 mm receptacle housing [1] See Figure 24. The length and size of "SFF-8451 Specification for LC model drives The nonshielded connector...
Cheetah 10K.7 SCSI Product Manual
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... Cheetah 10K.7 SCSI Product Manual, Rev. Drive will not operate I/O bus at the backplane is between -0.35 V and +0.5 V, the drive interface circuits operate singleended and up to and including 160 M transfers/s (Fast-160 or U320 SCSI). When "DIFFSNS" is either singleended or low voltage differential drivers/receivers (selectable using 0.025-inch (0.635 mm) centerline flat ribbon cable. See Section 8.1.1 notes. [10] "NC" means no connection. [11] 8 bit devices...
... Cheetah 10K.7 SCSI Product Manual, Rev. Drive will not operate I/O bus at the backplane is between -0.35 V and +0.5 V, the drive interface circuits operate singleended and up to and including 160 M transfers/s (Fast-160 or U320 SCSI). When "DIFFSNS" is either singleended or low voltage differential drivers/receivers (selectable using 0.025-inch (0.635 mm) centerline flat ribbon cable. See Section 8.1.1 notes. [10] "NC" means no connection. [11] 8 bit devices...
Cheetah 10K.7 SCSI Product Manual
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...interface data transfer rate 12 messages 53 SCSI bus cable 45 SCSI bus condition 63 SCSI bus ID 80 SCSI bus phase sequence 63 SCSI command 41 SCSI I/O connector 66 SCSI ID 45, 49 SCSI interface 13, 67 SCSI interface cable 68 SCSI interface commands supported 54 SCSI interface connector 64 SCSI interface data 12 SCSI Interface Product Manual 3, 5, 7 SCSI systems error 43 SCSI systems error consideration 41 SCSI systems error management 43 Seagate support service 45 sector 14 sector interleave 12 sector sizes 12 seek error 17 defined 18 segment 13, 14 self-contained 14 Cheetah 10K.7 SCSI Product...
...interface data transfer rate 12 messages 53 SCSI bus cable 45 SCSI bus condition 63 SCSI bus ID 80 SCSI bus phase sequence 63 SCSI command 41 SCSI I/O connector 66 SCSI ID 45, 49 SCSI interface 13, 67 SCSI interface cable 68 SCSI interface commands supported 54 SCSI interface connector 64 SCSI interface data 12 SCSI Interface Product Manual 3, 5, 7 SCSI systems error 43 SCSI systems error consideration 41 SCSI systems error management 43 Seagate support service 45 sector 14 sector interleave 12 sector sizes 12 seek error 17 defined 18 segment 13, 14 self-contained 14 Cheetah 10K.7 SCSI Product...