SAS System Builder Resource Guide: System builders info on the SCSI to SAS transition (258K, PDF)
Page 3
... percent faster seek times than 3.5-inch 10K • Higher performance per U (more IOPS/U) • Over 30 percent faster sustained transfer rates than previous generation Cooler • Low power consumption equals cooler-running drives • 20 percent less power than 3.5-inch drives • More drives in enterprise cabinetry Superior data integrity • SAS = Full Read and Write Error Correction and Detection (IOECC/IOEDC) vs. Seagate Leadership: SAS for Tiered...
... percent faster seek times than 3.5-inch 10K • Higher performance per U (more IOPS/U) • Over 30 percent faster sustained transfer rates than previous generation Cooler • Low power consumption equals cooler-running drives • 20 percent less power than 3.5-inch drives • More drives in enterprise cabinetry Superior data integrity • SAS = Full Read and Write Error Correction and Detection (IOECC/IOEDC) vs. Seagate Leadership: SAS for Tiered...
Storage Strategies for Server Virtualization
Page 3
..., and test it too severely with policy • Over-provisioning performance. With the right storage choices, IT managers can become a cost-neutral, complementary asset. All other functions, and thus will work in the United States and/or other countries. Getting the most productive data center innovations of a virtual server farm. Seagate reserves the right to hard drive capacity, one...
..., and test it too severely with policy • Over-provisioning performance. With the right storage choices, IT managers can become a cost-neutral, complementary asset. All other functions, and thus will work in the United States and/or other countries. Getting the most productive data center innovations of a virtual server farm. Seagate reserves the right to hard drive capacity, one...
Cheetah 15K.7 Product Overview
Page 2
... government-grade data security and instant secure erase for drives reused, recycled or returned for use a different standard of measurement and report a lower capacity. The drive reduces RAID rebuild times while minimizing reliability risks. Cheetah® 15K.7 Highest capacity, performance and reliability in 3.5-inch mission-critical storage Product Description Seagate Cheetah 15K.7 drives reduce costs for formatting and other functions, and thus will support 6-Gb/s transfer rates as part of the new SAS 2.0 feature set. Cheetah and...
... government-grade data security and instant secure erase for drives reused, recycled or returned for use a different standard of measurement and report a lower capacity. The drive reduces RAID rebuild times while minimizing reliability risks. Cheetah® 15K.7 Highest capacity, performance and reliability in 3.5-inch mission-critical storage Product Description Seagate Cheetah 15K.7 drives reduce costs for formatting and other functions, and thus will support 6-Gb/s transfer rates as part of the new SAS 2.0 feature set. Cheetah and...
Cheetah 15K.7 Data Sheet
Page 2
... on reliability and data protection. Specifications 600 GB1 450 GB1 300 GB1 Model Number Capacity Formatted 512 Kbytes/Sector (GB) External Transfer Rate (MB/s) 4-Gb/s Fibre Channel 6-Gb/s Serial Attached SCSI Performance Spindle Speed (RPM) Average Latency (ms) Seek Time Average Read/Write (ms) Track-to common support questions. • Find documentation for current and legacy drives. • Utilize our online troubleshooting and diagnostic tools. Cheetah® 15K.7 Highest capacity, performance and reliability in the event of a power failure during drive idle time. MTBF is an...
... on reliability and data protection. Specifications 600 GB1 450 GB1 300 GB1 Model Number Capacity Formatted 512 Kbytes/Sector (GB) External Transfer Rate (MB/s) 4-Gb/s Fibre Channel 6-Gb/s Serial Attached SCSI Performance Spindle Speed (RPM) Average Latency (ms) Seek Time Average Read/Write (ms) Track-to common support questions. • Find documentation for current and legacy drives. • Utilize our online troubleshooting and diagnostic tools. Cheetah® 15K.7 Highest capacity, performance and reliability in the event of a power failure during drive idle time. MTBF is an...
Enterprise-Optimized 6Gb/s SAS Rivals Fibre Channel Performance and Scalability at Lower Cost
Page 2
... 3Gb/s SAS/ more , 6Gb/s SAS does so while retaining compatibility with earlier SAS and SATA hard drives. • JBOD/RAID (just-a-bunch-of-disks/redundant array of additional enhancements enables 6Gb/s SAS to meet their needs." What's more storage capacity and faster throughput SATA compatibility. Enterprise-Optimized 6Gb/s SAS Rivals Fibre Channel Performance and Scalability at significantly lower cost. It has more secure and efficient scalability standard specification, SAS is...
... 3Gb/s SAS/ more , 6Gb/s SAS does so while retaining compatibility with earlier SAS and SATA hard drives. • JBOD/RAID (just-a-bunch-of-disks/redundant array of additional enhancements enables 6Gb/s SAS to meet their needs." What's more storage capacity and faster throughput SATA compatibility. Enterprise-Optimized 6Gb/s SAS Rivals Fibre Channel Performance and Scalability at significantly lower cost. It has more secure and efficient scalability standard specification, SAS is...
Enterprise-Optimized 6Gb/s SAS Rivals Fibre Channel Performance and Scalability at Lower Cost
Page 3
... percent supporting networked storage expansion beyond a single rack Greater signal integrity with SSC Enables 6Gb/s SAS drives installed in close proximity to one another without compromising data integrity Cost-effective simplification Simplified connectivity with standardization on mini SAS connectors Investment protection Retains compatibility with earlier SAS/SATA hard drives and SCSI software/ middleware Management efficiencies Utilizes existing IT SCSI expertise Figure 2. Enterprise-Optimized 6Gb/s SAS Rivals Fibre Channel Performance and...
... percent supporting networked storage expansion beyond a single rack Greater signal integrity with SSC Enables 6Gb/s SAS drives installed in close proximity to one another without compromising data integrity Cost-effective simplification Simplified connectivity with standardization on mini SAS connectors Investment protection Retains compatibility with earlier SAS/SATA hard drives and SCSI software/ middleware Management efficiencies Utilizes existing IT SCSI expertise Figure 2. Enterprise-Optimized 6Gb/s SAS Rivals Fibre Channel Performance and...
Cheetah 15K.7 FC Product Manual
Page 8
..." specification with Seagate standards as noted in the appropriate sections of this product manual. 2.1.1 Electromagnetic compatibility The drive, as the drive or external to the system does not adversely affect the performance of the drive. The design characteristics of the drive serve to minimize radiation when installed in an enclosure that equipment operating in the areas of safety, power distribution, shielding, audible noise control, and temperature regulation...
..." specification with Seagate standards as noted in the appropriate sections of this product manual. 2.1.1 Electromagnetic compatibility The drive, as the drive or external to the system does not adversely affect the performance of the drive. The design characteristics of the drive serve to minimize radiation when installed in an enclosure that equipment operating in the areas of safety, power distribution, shielding, audible noise control, and temperature regulation...
Cheetah 15K.7 FC Product Manual
Page 12
... • Differential copper FC drivers and receivers • Downloadable firmware using the FC-AL interface • Supports SCSI enclosure services via interface connector • 128-deep task set on command (Post Format) • Fibre Channel interface transports SCSI protocol Cheetah 15K.7 FC SED models have the following additional features : • Automatic data encryption/decryption • Controlled access • Random number generator • Drive locking • 16 independent data bands • Cryptographic erase of defects on the...
... • Differential copper FC drivers and receivers • Downloadable firmware using the FC-AL interface • Supports SCSI enclosure services via interface connector • 128-deep task set on command (Post Format) • Fibre Channel interface transports SCSI protocol Cheetah 15K.7 FC SED models have the following additional features : • Automatic data encryption/decryption • Controlled access • Random number generator • Drive locking • 16 independent data bands • Cryptographic erase of defects on the...
Cheetah 15K.7 FC Product Manual
Page 17
... on a write command after the data has been transferred into a segment, and then from a previous read command is retrieved from this point. If write caching is set to the host are in the Fibre Channel Interface Manual. B 11 If the prefetch feature is stored while the drive performs the Write command. The drive dynamically creates and removes segments based on the way to change an unchangeable parameter. 4.5.1 Caching write data Write caching is a write operation by...
... on a write command after the data has been transferred into a segment, and then from a previous read command is retrieved from this point. If write caching is set to the host are in the Fibre Channel Interface Manual. B 11 If the prefetch feature is stored while the drive performs the Write command. The drive dynamically creates and removes segments based on the way to change an unchangeable parameter. 4.5.1 Caching write data Write caching is a write operation by...
Cheetah 15K.7 FC Product Manual
Page 21
... the Informational Exceptions Control mode page (1Ch). Use the DEXCPT bit to an idle period on -line data as the drive performs normal read and write operations. You can 't predict instantaneous drive failures. Cheetah 15K.7 FC Product Manual, Rev. If the bypass circuit is an acronym for degradation over time but can measure off -line attribute data and saving data to the host an 01-5Dxx sense code. The drive...
... the Informational Exceptions Control mode page (1Ch). Use the DEXCPT bit to an idle period on -line data as the drive performs normal read and write operations. You can 't predict instantaneous drive failures. Cheetah 15K.7 FC Product Manual, Rev. If the bypass circuit is an acronym for degradation over time but can measure off -line attribute data and saving data to the host an 01-5Dxx sense code. The drive...
Cheetah 15K.7 FC Product Manual
Page 42
... The Locking SP controls read/write access to the Locking SP is available using the BandMasterX or EraseMaster passwords. Access to the media and the cryptographic erase feature. This 32-byte random value is printed on the drive, each data band has its cabinet and installed in a similar way (Band2 through LBA max. The drive will be sequential with a single data band called BandMasterX where X is the number...
... The Locking SP controls read/write access to the Locking SP is available using the BandMasterX or EraseMaster passwords. Access to the media and the cryptographic erase feature. This 32-byte random value is printed on the drive, each data band has its cabinet and installed in a similar way (Band2 through LBA max. The drive will be sequential with a single data band called BandMasterX where X is the number...
Cheetah 15K.7 FC Product Manual
Page 83
.../good status 62 Intermix 48, 51 internal data rate 9 internal defects/errors 38 internal drive characteristics 9 IRAW 42 J J1 connector 43 Jumper settings page command 53 jumpers 43 L latency average rotational 9, 10 LBdata 55 LED driver signals 71 Link Service Reject (LS_RJT) 46 link services supported 46 Locking SP 35, 36 LockOnReset 36 Lock-unlock-cache command 54 Log select command 55 Log sense command 55 logic power 66 logical block address 11 logical block...
.../good status 62 Intermix 48, 51 internal data rate 9 internal defects/errors 38 internal drive characteristics 9 IRAW 42 J J1 connector 43 Jumper settings page command 53 jumpers 43 L latency average rotational 9, 10 LBdata 55 LED driver signals 71 Link Service Reject (LS_RJT) 46 link services supported 46 Locking SP 35, 36 LockOnReset 36 Lock-unlock-cache command 54 Log select command 55 Log sense command 55 logic power 66 logical block address 11 logical block...
Cheetah 15K.7 FC Product Manual
Page 86
B security partitions 35 Security Protocol In 35 Security Protocol Out 35 Seek command 53 seek error defined 14 rate 13 Seek extended command 54 seek performance characteristics 9 seek time average typical 9 full stroke typical 9 single track typical 9 segmented caching 62 SEL ID 43 lines 68 standard feature 6 Self-Encrypting Drive (SED) Users Guide 1 self-encrypting drives 35 Self-Monitoring Analysis and Reporting Technology 7, 15 Send diagnostics page command 54 Sequential delivery 48, 51...
B security partitions 35 Security Protocol In 35 Security Protocol Out 35 Seek command 53 seek error defined 14 rate 13 Seek extended command 54 seek performance characteristics 9 seek time average typical 9 full stroke typical 9 single track typical 9 segmented caching 62 SEL ID 43 lines 68 standard feature 6 Self-Encrypting Drive (SED) Users Guide 1 self-encrypting drives 35 Self-Monitoring Analysis and Reporting Technology 7, 15 Send diagnostics page command 54 Sequential delivery 48, 51...
Cheetah 15K.7 SAS Product Manual
Page 8
... user's responsibility to assure that the drive meets the appropriate EMI requirements in this manual and the Seagate SAS Interface Manual, part number 100293071. The security features of Cheetah 15K.7 SAS SED models are recognized in the same system as a system peripheral to the highest standards of design and construction. however, it is designed for system integration and installation into a suitable enclosure prior to use. Shielded I /O cables are external...
... user's responsibility to assure that the drive meets the appropriate EMI requirements in this manual and the Seagate SAS Interface Manual, part number 100293071. The security features of Cheetah 15K.7 SAS SED models are recognized in the same system as a system peripheral to the highest standards of design and construction. however, it is designed for system integration and installation into a suitable enclosure prior to use. Shielded I /O cables are external...
Cheetah 15K.7 SAS Product Manual
Page 12
... all writes and reads to and from the media • Controlled access • Random number generator • Drive locking • Two independent data bands which each have the following standard features: • 1.5 / 3 / 6 Gbit Serial Attached SCSI (SAS) interface • Integrated dual port SAS controller supporting the SCSI protocol • Support for improved durability and environmental protection. 3.3 Performance • Programable multi-segmented cache buffer • 600 Mbytes/sec maximum instantaneous data transfers...
... all writes and reads to and from the media • Controlled access • Random number generator • Drive locking • Two independent data bands which each have the following standard features: • 1.5 / 3 / 6 Gbit Serial Attached SCSI (SAS) interface • Integrated dual port SAS controller supporting the SCSI protocol • Support for improved durability and environmental protection. 3.3 Performance • Programable multi-segmented cache buffer • 600 Mbytes/sec maximum instantaneous data transfers...
Cheetah 15K.7 SAS Product Manual
Page 17
... returned, a deferred error will likely occur. DRA bit = 0 enables prefetch. The buffer segmentation scheme is set up or changed independently, having nothing to do with the state of RCD. Cheetah 15K.7 SAS Product Manual, Rev. The new data is cached for read caching is enabled (RCD=0), then data written to the medium is retained in contiguous logical blocks on a write command after the data has been transferred into the...
... returned, a deferred error will likely occur. DRA bit = 0 enables prefetch. The buffer segmentation scheme is set up or changed independently, having nothing to do with the state of RCD. Cheetah 15K.7 SAS Product Manual, Rev. The new data is cached for read caching is enabled (RCD=0), then data written to the medium is retained in contiguous logical blocks on a write command after the data has been transferred into the...
Cheetah 15K.7 SAS Product Manual
Page 21
... number of times the error rate for a given attribute. To accomplish this information to the temperature exceeding the drive threatening temperature or the user-specified temperature. data frame on the Informational Exceptions Control (IEC) mode page (1Ch). The current algorithm implements two temperature trip points. The second trip point is preserved through bus resets and power cycles. The error code is user-selectable using the Log Select command. A counter keeps track of the number of errors...
... number of times the error rate for a given attribute. To accomplish this information to the temperature exceeding the drive threatening temperature or the user-specified temperature. data frame on the Informational Exceptions Control (IEC) mode page (1Ch). The current algorithm implements two temperature trip points. The second trip point is preserved through bus resets and power cycles. The error code is user-selectable using the Log Select command. A counter keeps track of the number of errors...
Cheetah 15K.7 SAS Product Manual
Page 41
... or redispositioned. 7.7 Authenticated firmware download In addition to providing a locking mechanism to prevent unwanted firmware download attempts, the drive also only accepts download files which comprises LBA 0 through Band15) but they must be locked if power is lost. The variable "LockOnReset" should also set the data access controls for system use the SID credential to unlock the firmware download port before firmware updates will be individually enabled using the EraseMaster password. Data bands cannot overlap...
... or redispositioned. 7.7 Authenticated firmware download In addition to providing a locking mechanism to prevent unwanted firmware download attempts, the drive also only accepts download files which comprises LBA 0 through Band15) but they must be locked if power is lost. The variable "LockOnReset" should also set the data access controls for system use the SID credential to unlock the firmware download port before firmware updates will be individually enabled using the EraseMaster password. Data bands cannot overlap...
Cheetah 15K.7 SAS Product Manual
Page 69
....seagate.com. B 63 Our data recovery services labs are available on a global basis for all formats and all brands of telephone numbers to technical support, presales and warranty service in Europe, the Middle East and Africa, go to the "Contact Us" page on www.seagate.com. Cheetah 15K.7 SAS Product Manual, Rev. Seagate distributors, OEMs and other direct customers should contact their Seagate Customer Service Operations (CSO) representative for Seagate products...
....seagate.com. B 63 Our data recovery services labs are available on a global basis for all formats and all brands of telephone numbers to technical support, presales and warranty service in Europe, the Middle East and Africa, go to the "Contact Us" page on www.seagate.com. Cheetah 15K.7 SAS Product Manual, Rev. Seagate distributors, OEMs and other direct customers should contact their Seagate Customer Service Operations (CSO) representative for Seagate products...
Cheetah 15K.7 SAS Product Manual
Page 73
... 31 Recoverable Errors 12 recovered media data 12 reference documents 4 relative humidity 29 reliability 7 specifications 12 reliability and service 13 repair and return information 18 reporting actual retry count 55 reservation conflict status 56 resonance 29 return information 18 RNG 35 rotation speed 8 S safety 2 SAS interface 59 physical interface 56 task management functions 43 SAS documents 4 SAS Interface Manual 2, 4 SCSI interface commands supported 44 Secure ID 34 security partitions 34 Cheetah 15K.7 SAS Product Manual, Rev.
... 31 Recoverable Errors 12 recovered media data 12 reference documents 4 relative humidity 29 reliability 7 specifications 12 reliability and service 13 repair and return information 18 reporting actual retry count 55 reservation conflict status 56 resonance 29 return information 18 RNG 35 rotation speed 8 S safety 2 SAS interface 59 physical interface 56 task management functions 43 SAS documents 4 SAS Interface Manual 2, 4 SCSI interface commands supported 44 Secure ID 34 security partitions 34 Cheetah 15K.7 SAS Product Manual, Rev.