Optimizing Storage with SAS: Beyond the 10K Compromise (72K, PDF)
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... random reads/writes and 24x7, always-on operation. they might deploy lower-capacity drives to withstand the rigors of these performance and reliability advantages are purpose-built to meet a given capacity requirement, and this also drives up with 10K SAS drives, employing unorthodox techniques to access the data, thus improving disc seek time at any time. While nearline data activity is all about keeping that force drive heads...
... random reads/writes and 24x7, always-on operation. they might deploy lower-capacity drives to withstand the rigors of these performance and reliability advantages are purpose-built to meet a given capacity requirement, and this also drives up with 10K SAS drives, employing unorthodox techniques to access the data, thus improving disc seek time at any time. While nearline data activity is all about keeping that force drive heads...
VAR Delivers Competitive Advantage With Intel, Adaptec, and Seagate (454K, PDF)
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... (using 500 GB SATA drives) • RAID levels 0, 1, 1E, 5, 5EE, 6, 10, 50, 60 JBOD • 128 MB DDR fixed data cache • MD2 low-profile form factor • Optional battery backup module OS support: Microsoft Windows*, Linux* Open Source, Sun, VMWare* Features: • Broad range of capacities-from 73 GB to 450 GB • Serial Attached SCSI (SAS), Ultra320 SCSI, 4-Gb/s Fibre Channel interfaces • Sustained data rates up to 162 MB/s • Seek times as...
... (using 500 GB SATA drives) • RAID levels 0, 1, 1E, 5, 5EE, 6, 10, 50, 60 JBOD • 128 MB DDR fixed data cache • MD2 low-profile form factor • Optional battery backup module OS support: Microsoft Windows*, Linux* Open Source, Sun, VMWare* Features: • Broad range of capacities-from 73 GB to 450 GB • Serial Attached SCSI (SAS), Ultra320 SCSI, 4-Gb/s Fibre Channel interfaces • Sustained data rates up to 162 MB/s • Seek times as...
Cheetah 10K.7 Product Overview
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... © 2004 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 area networks and supercomputers • Digital A/V and...
... © 2004 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 area networks and supercomputers • Digital A/V and...
Cheetah 10K.7 Data Sheet
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..., product offerings or specifications. 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...
..., product offerings or specifications. 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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... enclosure, SAS expanders on those backplanes can easily support a multitude of SATA drives with a single SAS HBA port. As more ports available on the HBA, and with 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...
... enclosure, SAS expanders on those backplanes can easily support a multitude of SATA drives with a single SAS HBA port. As more ports available on the HBA, and with 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...
SAS and SATA: Multiple Benefits of Unified Storage (334K, PDF)
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... is increasingly concerned with SATA Benefits Connectivity for multiple device types lowers TCO, gives flexibility to SFF 2.5-inch 15K-RPM drives, with compact cabling Not surprisingly, storage managers welcomed the many firms, the optimal blend of its parallel predecessor (rock-solid reliability, mature SCSI command set) while offering dramatic improvements in both a storage device's performance and its data centers. SAS is an ideal complement...
... is increasingly concerned with SATA Benefits Connectivity for multiple device types lowers TCO, gives flexibility to SFF 2.5-inch 15K-RPM drives, with compact cabling Not surprisingly, storage managers welcomed the many firms, the optimal blend of its parallel predecessor (rock-solid reliability, mature SCSI command set) while offering dramatic improvements in both a storage device's performance and its data centers. SAS is an ideal complement...
SAS and SATA: Multiple Benefits of Unified Storage (334K, PDF)
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... this key goal. Not only does SAS infrastructure (via its SFF 15K-RPM SAS drives onto high-capacity 3.5-inch SATA drives, freeing up more capacity at idle (power consumption is rated as low as 3.5-inch 15K-RPM SAS drives, these hard drives help energy-constrained data centers maximize efficiency. Printed in -class capacity, energy savings and performance compared to a RAID- All other countries. Publication Number: TP581.1-0709US, September 2007 Coupled with a 33...
... this key goal. Not only does SAS infrastructure (via its SFF 15K-RPM SAS drives onto high-capacity 3.5-inch SATA drives, freeing up more capacity at idle (power consumption is rated as low as 3.5-inch 15K-RPM SAS drives, these hard drives help energy-constrained data centers maximize efficiency. Printed in -class capacity, energy savings and performance compared to a RAID- All other countries. Publication Number: TP581.1-0709US, September 2007 Coupled with a 33...
Cheetah 10K.7 FC Product Manual
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... FC drivers and receivers • Downloadable firmware using the FC-AL interface • Supports SCSI enclosure services via interface connector • 128-deep task set on the FC-AL backpanel or through interface com- D 3.1 Standard features Cheetah 10K.7 FC drives have the following standard features: • Integrated dual port FC-AL controller • Concurrent dual port transfers • Support for improved durability and environmental protection. 8 Cheetah 10K.7 FC Product Manual, Rev...
... FC drivers and receivers • Downloadable firmware using the FC-AL interface • Supports SCSI enclosure services via interface connector • 128-deep task set on the FC-AL backpanel or through interface com- D 3.1 Standard features Cheetah 10K.7 FC drives have the following standard features: • Integrated dual port FC-AL controller • Concurrent dual port transfers • Support for improved durability and environmental protection. 8 Cheetah 10K.7 FC Product Manual, Rev...
Cheetah 10K.7 FC Product Manual
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... default cache and prefetch mode parameter values (Mode Page 08h) for a Status Byte Transfer to the Initiator (excluding connect/disconnect). [2] Typical access times are measured under nominal conditions of temperature, voltage, and horizontal orientation as measured on the drive. 4.4 Prefetch/multi-segmented cache control The drive provides a prefetch (read and to support the rates listed and no relocated logical blocks. If the Motor Start option is enabled and disabled independently using Mode Select...
... default cache and prefetch mode parameter values (Mode Page 08h) for a Status Byte Transfer to the Initiator (excluding connect/disconnect). [2] Typical access times are measured under nominal conditions of temperature, voltage, and horizontal orientation as measured on the drive. 4.4 Prefetch/multi-segmented cache control The drive provides a prefetch (read and to support the rates listed and no relocated logical blocks. If the Motor Start option is enabled and disabled independently using Mode Select...
Cheetah 10K.7 FC Product Manual
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... control) in the Fibre Channel Interface Manual. During a prefetch, the drive crosses a cylinder boundary to be in any integer number of the segment. Default is set up for subsequent Read commands. 14 Cheetah 10K.7 FC Product Manual, Rev. The drive supports operation of any segment of each segment of user-selectable configurations. The value 0XFFFF is cached for read command is retained in accordance with the Mode Select Disconnect/Reconnect parameters, page 02h. 2. Sending a size specification using the Mode Select command...
... control) in the Fibre Channel Interface Manual. During a prefetch, the drive crosses a cylinder boundary to be in any integer number of the segment. Default is set up for subsequent Read commands. 14 Cheetah 10K.7 FC Product Manual, Rev. The drive supports operation of any segment of each segment of user-selectable configurations. The value 0XFFFF is cached for read command is retained in accordance with the Mode Select Disconnect/Reconnect parameters, page 02h. 2. Sending a size specification using the Mode Select command...
Cheetah 10K.7 FC Product Manual
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... write caching is enabled (WCE=1), then the drive may be generated. DRA bit = 0 enables prefetch. Since data that is prefetched replaces data already in Mode Page 8, Byte 13, at the beginning of the operation; When prefetch (read operations are retrieved and stored in the Fibre Channel Interface Product Manual, part number 77767496. If the host is not using software interleave, and if two sequential read look ahead" to optimize the performance...
... write caching is enabled (WCE=1), then the drive may be generated. DRA bit = 0 enables prefetch. Since data that is prefetched replaces data already in Mode Page 8, Byte 13, at the beginning of the operation; When prefetch (read operations are retrieved and stored in the Fibre Channel Interface Product Manual, part number 77767496. If the host is not using software interleave, and if two sequential read look ahead" to optimize the performance...
Cheetah 10K.7 FC Product Manual
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... specifications assume correct host and drive operational interface, including all flaws reallocated. 5.1 Error rates The error rates stated in this manual using DC power as defined in accordance with typical receive eye (see Section 9.6.4, "Differential PECL input." Cheetah 10K.7 FC Product Manual, Rev. D 17 Error rate specified with automatic retries and data correction with ECC enabled and all interface timings, power supply voltages, environmental requirements and drive mounting constraints Seek error rate Read Error Rates1 Recovered Data Unrecovered Data Miscorrected Data...
... specifications assume correct host and drive operational interface, including all flaws reallocated. 5.1 Error rates The error rates stated in this manual using DC power as defined in accordance with typical receive eye (see Section 9.6.4, "Differential PECL input." Cheetah 10K.7 FC Product Manual, Rev. D 17 Error rate specified with automatic retries and data correction with ECC enabled and all interface timings, power supply voltages, environmental requirements and drive mounting constraints Seek error rate Read Error Rates1 Recovered Data Unrecovered Data Miscorrected Data...
Cheetah 10K.7 FC Product Manual
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... in the Informational Exceptions Control mode page (1Ch). In either case, the interval and failure counters are reset and the process starts over which exceed the threatening temperature value. Signals the host if the temperature exceeds a value which errors occur and signals a predictive failure if the rate of time. A temperature sensor monitors the drive temperature and issues a warning over the interface when the temperature exceeds a set thresholds for...
... in the Informational Exceptions Control mode page (1Ch). In either case, the interval and failure counters are reset and the process starts over which exceed the threatening temperature value. Signals the host if the temperature exceeds a value which errors occur and signals a predictive failure if the rate of time. A temperature sensor monitors the drive temperature and issues a warning over the interface when the temperature exceeds a set thresholds for...
Cheetah 10K.7 FC Product Manual
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... the drive specification. A sense code is user-selectable using the Log Select command. The short test is due to Seagate for this trip point. Extended test 2. You can set this drive is reported in compliance with the SCSI standard. Cheetah 10K.7 FC Product Manual, Rev. The thermal monitor system generates a warning code of the drive at 68°C which is exceeded, S.M.A.R.T. The default value for service. If DST encounters an error during...
... the drive specification. A sense code is user-selectable using the Log Select command. The short test is due to Seagate for this trip point. Extended test 2. You can set this drive is reported in compliance with the SCSI standard. Cheetah 10K.7 FC Product Manual, Rev. The thermal monitor system generates a warning code of the drive at 68°C which is exceeded, S.M.A.R.T. The default value for service. If DST encounters an error during...
Cheetah 10K.7 FC Product Manual
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... recovery time for writes) is executing error recovery and it restarts on control of zero (0) will result in this product manual. However, the drive does not report any unrecovered errors. The drive will use of the Recovery Time Limit field allows finer granularity on each of 0 will still perform data recovery actions within that command. If the recovery time limit is set to 00 C8 hex (200 msec decimal) a four LBA read command is...
... recovery time for writes) is executing error recovery and it restarts on control of zero (0) will result in this product manual. However, the drive does not report any unrecovered errors. The drive will use of the Recovery Time Limit field allows finer granularity on each of 0 will still perform data recovery actions within that command. If the recovery time limit is set to 00 C8 hex (200 msec decimal) a four LBA read command is...
Cheetah 10K.7 FC Product Manual
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... Service Operations Warranty Service Seagate offers worldwide customer support for service. Have your drive's "ST" model number and serial number available. Data Recovery Services Seagate offers data recovery services for all formats and all brands of operation are 8:00 A.M. to 5:00 P.M., Monday through Friday (Central time). 3Hours of storage media. Authorized Service Centers In some locations outside the US, you can contact an Authorized Service Center for Seagate drives. Data Recovery Services Call center USA, Canada, and Mexico Toll-free...
... Service Operations Warranty Service Seagate offers worldwide customer support for service. Have your drive's "ST" model number and serial number available. Data Recovery Services Seagate offers data recovery services for all formats and all brands of operation are 8:00 A.M. to 5:00 P.M., Monday through Friday (Central time). 3Hours of storage media. Authorized Service Centers In some locations outside the US, you can contact an Authorized Service Center for Seagate drives. Data Recovery Services Call center USA, Canada, and Mexico Toll-free...
Cheetah 10K.7 FC Product Manual
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... support 55 E electrical description of connector 69 signal characteristics 75 specifications 25 electromagnetic compatibility 3 electromagnetic susceptibility 38 EMI requirements 3 enable bypass port A 72 port B 72 signal 72 state 19 Enclosure Services interface 69 Enclosure services page command 57 environmental limits 34 requirements 17 environmental control 37 error detection mechanisms, FC 19 management 41 rates 17 error correction code 96-bit Reed-Solomon 8 Error recovery page (01h) command 57 execution time...
... support 55 E electrical description of connector 69 signal characteristics 75 specifications 25 electromagnetic compatibility 3 electromagnetic susceptibility 38 EMI requirements 3 enable bypass port A 72 port B 72 signal 72 state 19 Enclosure Services interface 69 Enclosure services page command 57 environmental limits 34 requirements 17 environmental control 37 error detection mechanisms, FC 19 management 41 rates 17 error correction code 96-bit Reed-Solomon 8 Error recovery page (01h) command 57 execution time...
Cheetah 10K.7 FC Product Manual
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.../good status 66 Intermix 51, 54 internal data rate 11 internal defects/errors 41 internal drive characteristics 11 J J1 connector 45 J6 connector 46, 47 Jumper settings page command 56 jumpers 45 L latency average rotational 11, 13 LBdata 59 LED driver signals 76 link rate 75 Link Service Reject (LS_RJT) 49 link services supported 49 Lock-unlock-cache command 58 Log select command 59 Log sense command 59 logic power 71 logical block address 14 logical...
.../good status 66 Intermix 51, 54 internal data rate 11 internal defects/errors 41 internal drive characteristics 11 J J1 connector 45 J6 connector 46, 47 Jumper settings page command 56 jumpers 45 L latency average rotational 11, 13 LBdata 59 LED driver signals 76 link rate 75 Link Service Reject (LS_RJT) 49 link services supported 49 Lock-unlock-cache command 58 Log select command 59 Log sense command 59 logic power 71 logical block address 14 logical...
Cheetah 10K.7 FC Product Manual
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... conflict status 66 Reserve command 56 Reserved (10) command 60 resonance 35 return information 24 Rezero unit command 56 Rigid disc drive geometry page command 57 rotation speed 11 running disparity 19 S safety 3 SCA part numbers 68 SCSI interface commands supported 56 SCSI Interface Product Manual 3 Search data equal command 58 high command 58 low command 58 sector interleave 12 Seek command 56 seek error defined 18 rate 17 Seek extended command 58 seek performance characteristics 12 segmented caching 66 Cheetah 10K.7 FC Product Manual, Rev.
... conflict status 66 Reserve command 56 Reserved (10) command 60 resonance 35 return information 24 Rezero unit command 56 Rigid disc drive geometry page command 57 rotation speed 11 running disparity 19 S safety 3 SCA part numbers 68 SCSI interface commands supported 56 SCSI Interface Product Manual 3 Search data equal command 58 high command 58 low command 58 sector interleave 12 Seek command 56 seek error defined 18 rate 17 Seek extended command 58 seek performance characteristics 12 segmented caching 66 Cheetah 10K.7 FC Product Manual, Rev.
Cheetah 10K.7 FC Product Manual
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... transporting the drive 24 TTL input characteristics 75 typical access time 13 U UI 52, 53 unformatted 9 unique identifier 52, 53 Unit attention page (00h) command 57 Unit serial number page command 56 Unrecoverable Errors 18 unrecovered media data 17 V Valid version level 51, 54 Verify command 58 Verify error recovery page (07h) command 57 vibration 35, 37 Vital product data page command 56 voltage 13 W warranty 23 word...
... transporting the drive 24 TTL input characteristics 75 typical access time 13 U UI 52, 53 unformatted 9 unique identifier 52, 53 Unit attention page (00h) command 57 Unit serial number page command 56 Unrecoverable Errors 18 unrecovered media data 17 V Valid version level 51, 54 Verify command 58 Verify error recovery page (07h) command 57 vibration 35, 37 Vital product data page command 56 voltage 13 W warranty 23 word...