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Lightning Ultra™ Gen. II SAS SSDs offer industry-leading predictable performance with high availability for the analysis of large data sets. Available in 19nm SLC, these SSDs are designed for write-intensive applications such as high performance computing (HPC), big data analytics, database logging, media editing, and indexing with a heavy workload comprised of a 50/50 read/write mix.
This next generation Lightning® SSD offers a feature-rich robust design combined with SanDisk’s innovative parallel processing architecture to deliver full data path protection (supports T10-DIF), temperature based power control, SED instant secure erase, an MTBF of 2.5 million hours**MTBF – Mean Time Between Failures based on parts stress analysis and power fail protection.
Database logging is a write-intensive workload that allows customers to recover from failures by helping to connect primary and secondary databases. These database logs keep records of all database changes as transactions are updated and, in cases of downtime, they roll data forward through the point of failure. In cases of unplanned downtime, databases can be restored to a point beyond the last full, offline back-up, due to flash storage’s non-volatile memory, which preserves the last transactions prior to the downtime.
High-performance computing workloads consist of high-volume processing of large datasets, which greatly benefit by using flash technology. HPC includes engineering and data-intensive workloads like seismic analysis, oil and gas exploration, weather forecasting, and market simulations. Flash storage SSDs help each server’s application in an HPC cluster work more effectively and protect data as it is generated by scale-out applications across the cluster.
Lightning Ultra Gen. II SAS SSDs support creation of unending streams of video, images, and audio data for entertainment, and informational and recording purposes. For most of these workloads, accurate and rapid delivery is important to preserving the customer experience. For others, accurate delivery is vital to maintaining data integrity, both for recording and archival purposes.
What happens to the data on the SSD if the power is turned off?The Lightning Ultra Gen. II SAS SSD retains the data just as an HDD would.
Is a special enclosure required for the Lightning Ultra SAS SSD?The Lightning Ultra Gen. II SAS SSD is compatible with any industry standard enclosure that supports a 2.5 inch form factor and 12Gb/s or 6Gb/s SAS interface.
Is any special device driver software required for the Lightning Ultra SAS SSD?The Lightning Ultra Gen. II SAS SSD requires no special device driver software.
Can the Lightning Ultra Gen. II SAS SSD be deployed with HDD’s or other types of SDDs in the same enclosure?Just as with HDD’s, mixing of different disk drives will render unpredictable results. Therefore mixing of devices is not recommended nor supported.
When deploying Lightning Ultra Gen. II SAS SSDs, do all HDDs have to be eliminated from an enterprise?No. A desired number of existing HDDs can be retained so long as they reside in a different disk shelf than the Lightning Ultra Gen. II SAS SSDs
Is the Lightning Ultra Gen. II SAS SSD reliable?The Lightning Ultra Gen. II SAS SSD is extremely reliable with a reliability rate of one in 1017 bits read, which is 10 times greater than the requirements specified by the JEDEC 218 standard, which calls out for a minimal UBER of one in 1016 bits read for Enterprise‐class SSDs.
Do Lightning Ultra Gen. II SAS SSDs really increase the performance of servers?Yes. Lightning Ultra Gen. II SAS SSDs can increase a server’s performance by reducing a server’s I/O wait time to get data for processing. SAS HDDs have an average wait time of half a disk revolution before the read heads are positioned over the desired data. The Lightning Ultra Gen. II SAS SSDs have no moving parts, so data is accessed much faster thus reducing server wait time.
Can Lightning Ultra Gen. II SAS SSDs greatly consolidate/reduce storage footprint?Yes. With HDDs performance is directly related to spindle count, so the more HDD spindles, the greater the performance. Traditionally, in the HDD environment short stroking has been used to obtain the level of performance required – short stroking is the technique of greatly over-provisioning HDD spindles to obtain a desired performance level while only requiring a fraction of the over-provisioned storage capacity. One Lightning Ultra Gen. II SAS SSD can achieve up to 199K Read IOPS which would take several full HDD storage shelves to match the number of IOPS. So in essence, one Lightning Ultra Gen. II SAS SSD can replace multiple HDDs, greatly reducing footprint and energy consumption.
How are Lightning Ultra Gen. II SAS SSDs designed for write-intensive workloads such as High Performance Computing (HPC), Analytics, Media Editing, Indexing and Database Logging? The key to achieving increased data and system performance is in understanding the specific application workload. The Lightning Ultra Gen. II SAS12Gb/s SAS SSDs provide an I/O pattern designed around frequent writes for application workloads with a 50/50 read/write mix.
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