Data protection solutions HP provides a range of interoperable data protection

Data protection solutions hp provides a range of

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Data protection solutions —HP provides a range of interoperable data protection solutions, from single-server tape drives to autoloaders and tape libraries that integrate with HP and third-party backup software offerings. Comparing drive technologies The differences among the drive technologies include: Solid-state-drives (SSD) Rev. 15.21 4 – 5
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HP C&L Stakeholders only. Reproduction in whole or in part without permission is prohibited. Designing HP SMB Storage Solutions Share the I/O interface technology developed for hard drives Use electronic interfaces compatible with traditional block (I/O) hard drives Include a controller that incorporates the electronics that bridge the NAND memory components to the host computer. The controller is an embedded processor that executes firmware-level code and is one of the most important factors of SSD performance. Some of the functions performed by the controller include: Error checking and correction (ECC) Wear leveling Managed via the drive interface board and embedded controller Bad block mapping Read scrubbing and read disturb management Read and write caching Garbage collection Encryption Ideal for mission-critical server applications, databases and online storage SMB and enterprise-level for high-performance workloads Disadvantage is a possible data loss in unpowered drives over longer term Indispensable for storage array tiering strategies SAS Largest capacity available in 15K 6G SAS 2.5-inch hard drives 15K RPM drives offer decreased rotational latency Up to 1 TB capacity in a 6Gb/s SAS 2.5-inch form factor, 15,000 RPM Ideal for mission-critical server applications and external storage SMB and enterprise level 4 – 6 Rev. 15.21
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HP C&L Stakeholders only. Reproduction in whole or in part without permission is prohibited. HP Storage SMB Portfolio SAS midline Up to 3 TB storage capacity 6 Gb/sec data transfer rate 10,000 RPM SFF (2.5-inch) and LFF (3.5-inch) form factors Lowest cost per GB Ideal for non-mission critical environments SMB SATA/Nearline SAS Built for low cost with less expensive components Designed for desktops, PCs, and low-end servers 20% to 30% I/O duty cycle 150 MB/s with better performance in future Up to 3 TB capacity, 7,200 RPM SMB and enterprise level Rev. 15.21 4 – 7
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HP C&L Stakeholders only. Reproduction in whole or in part without permission is prohibited. Designing HP SMB Storage Solutions NAND flash differentiators With any redundant RAID level, a host-level write operation results in multiple low-level writes to the drives. SSD write operations typically have a higher overhead and generate more background NAND management activity than SSD read operations. In redundant RAID configurations using SSDs, this performance difference is magnified. A redundant array using SSDs might deliver better performance than a hard drive-based array. But the relative fall off in performance as the write load increases is greater for the SSD- based configuration.
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