HP 411508-B21 Serial ATA technology, 2nd edition
HP 411508-B21 - Smart Array E200/128 BBWC Controller RAID Manual
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HP 411508-B21 manual content summary:
- HP 411508-B21 | Serial ATA technology, 2nd edition - Page 1
Parallel ATA technology ...2 Serial ATA technology...3 Low voltage differential signaling ...4 Signal integrity ...4 SATA Performance ...5 SATA 1.5 Gb/s ...5 SATA 1.5 Gb/s (with extensions 5 SATA 3.0-Gb/s...5 SATA devices ...5 Cabling and connector ...6 Initiators ...6 Port multipliers ...7 Targets - HP 411508-B21 | Serial ATA technology, 2nd edition - Page 2
critical network storage. With the introduction of SATA products in 2004, key solution providers like HP are now offering more scalable and affordable configuration since it was introduced in the 1980's as IDE (Integrated Drive Electronics). The success of parallel ATA in the desktop and notebook - HP 411508-B21 | Serial ATA technology, 2nd edition - Page 3
rate of today's 7,200-RPM hard disk drives (HDDs) because the interface has to accommodate only one drive at a time. Figure 2. It is becoming increasingly difficult to support the traditional 5V TTL signal requirement of parallel ATA beyond ATA 133. SATA technology has the potential to shrink form - HP 411508-B21 | Serial ATA technology, 2nd edition - Page 4
in a single stream rather than in multiple parallel streams. SATA incorporates an low voltage differential (LVD) signaling scheme that the clock signals into the data stream, thus eliminating the skew problem with aligning data and clock signals. Serial architectures require significantly fewer - HP 411508-B21 | Serial ATA technology, 2nd edition - Page 5
SATA 1.5 Gb/s focuses on increasing the bandwidth and mitigating the design problems associated with the parallel ATA architecture. SATA drivers. SATA 1.5 Gb/s (with extensions) SATA throughput. SATA 3.0-Gb/s hard drives will data delivery within commands requires support for non-zero buffer offsets - HP 411508-B21 | Serial ATA technology, 2nd edition - Page 6
connector. The power connector provides optional hot-plug capability, which allows a drive to be swapped out without powering down the machine. Figure 6. The 7-pin SATA data cable and the 15-pin power cable Initiators A SATA initiator is a controller that can be embedded into the motherboard (Figure - HP 411508-B21 | Serial ATA technology, 2nd edition - Page 7
operating system and driver support. SATA 1.5Gb/s devices (that support extensions) and SATA 3.0-Gb/s devices are backwards compatible with SATA 1.5-Gb/s controllers. Targets In a SATA domain, targets are limited to SATA hard drives, each with a single narrow-link port. SATA drives are available in - HP 411508-B21 | Serial ATA technology, 2nd edition - Page 8
http://h18004.www1.hp.com/products/servers/technology/whitepapers/proliant-storage.html. Internal Figure 9 shows a topology that can be used for internal RAID systems incorporating SATA drives. Each drive has a point-to-point connection to the controller. The controller can support a maximum of six - HP 411508-B21 | Serial ATA technology, 2nd edition - Page 9
will dominate the desktop market because it offers desktop reliability, functionality, and performance at a low cost. SATA technology is ideal for low-cost servers and non-mission critical server storage applications. SAS is the ideal solution for mission-critical enterprise storage applications - HP 411508-B21 | Serial ATA technology, 2nd edition - Page 10
to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors
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Serial ATA technology
technology brief,
2nd edition
Introduction
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2
Parallel ATA technology
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2
Serial ATA technology
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3
Low voltage differential signaling
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4
Signal integrity
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4
SATA Performance
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5
SATA 1.5 Gb/s
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5
SATA 1.5 Gb/s (with extensions)
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5
SATA 3.0-Gb/s
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5
SATA devices
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5
Cabling and connector
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6
Initiators
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6
Port multipliers
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7
Targets
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7
SATA/SAS interoperability
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7
SATA topologies
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8
Internal
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8
External
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8
Conclusion
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9
For more information
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10
Call to action
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10