{"product_id":"lenovo-pm1643a-192-tb-25-sas-v-nand-tlc","title":"Lenovo PM1643a 1.92 TB 2.5\" SAS V-NAND TLC","description":"\u003cdiv id=\"icepim-bulletpoints\"\u003e\u003cul\u003e\n\u003cli\u003eEnterprise-grade SSD suitable for read-intensive workloads\u003c\/li\u003e\n\u003cli\u003eBased on Samsung 64-layer V-NAND technology and TLC flash memory\u003c\/li\u003e\n\u003cli\u003eEndurance of 1 drive-write per day (DWPD) over 5 years\u003c\/li\u003e\n\u003cli\u003e2.5-inch or 3.5-inch industry standard form factor with hot-swap tray\u003c\/li\u003e\n\u003cli\u003eSAS 12 Gbps interface\u003c\/li\u003e\n\u003cli\u003eSingle port host interface\u003c\/li\u003e\n\u003cli\u003eProtect data integrity from unexpected power loss with Samsung's advanced power-loss protection architecture\u003c\/li\u003e\n\u003cli\u003eSupports Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T)\u003c\/li\u003e\n\u003cli\u003eEnd-to-end data protection\u003c\/li\u003e\n\u003cli\u003eSupport 16 Initiator with Tag Command Queuing (TCQ) Command Set with a queue-depth of up to 128 commands\u003c\/li\u003e\n\u003cli\u003eCompliant with SCSI Specification (SAS-3 \/ SPL-3 \/ SBC-4 \/ SPC-4 \/ SAM-5)\u003c\/li\u003e\n\u003cli\u003eRoHS Compliant\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\u003cdiv id=\"icepim-long-desc\"\u003e\u003cp id=\"ice_long_description\"\u003e\u003cb\u003eAbstract\u003c\/b\u003e\u003cbr\u003eThe PM1643a Entry SAS 12Gb solid-state drives (SSDs) from Lenovo provide high-performance, reliable storage solutions for high-capacity enterprise applications. Designed for dense storage and with a 12 Gb SAS interface, these drives feature all the capacity and performance that is needed to replace large numbers of 15K rpm and 10K rpm spinning disks, and consolidate storage into tightly packed server configurations.\u003cbr\u003e\u003cbr\u003eThis product guide provides essential presales information to understand the PM1643a Entry SAS 12Gb SSD offerings and their key features, specifications, and compatibility. This guide is intended for technical specialists, sales specialists, sales engineers, IT architects, and other IT professionals who want to learn more about the SSDs and consider their use in IT solutions.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIntroduction\u003c\/b\u003e\u003cbr\u003eThe ThinkSystem PM1643a Entry SAS 12Gb solid-state drives (SSDs) are next-generation SSDs suitable for a wide range of applications. The PM1643a SAS SSDs are designed for dense storage and with a 12 Gb SAS interface, these drives feature all the capacity and performance that is needed to replace large numbers of 15K rpm and 10K rpm spinning disks, and consolidate storage into tightly packed server configurations.\u003cbr\u003e\u003cbr\u003eThe PM1643a SSDs are the follow-on to the PM1643 SSDs and offer improved random write performance.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDid you know?\u003c\/b\u003e\u003cbr\u003eUnlike SATA drives, the 12 Gb\/s SAS interface on PM1643a drives supports full duplex data transfer for higher performance, as well as enterprise-level error recovery for better availability.\u003cbr\u003e\u003cbr\u003eRigorous testing of PM1643a Entry SATA SSDs by Lenovo through the ServerProven program assures a high degree of storage subsystem compatibility and reliability. Providing additional peace of mind, these drives are covered under Lenovo warranty.\u003cbr\u003e\u003cbr\u003eSSDs have a huge but finite number of program\/erase (P\/E) cycles, which affect how long they can perform write operations and thus their life expectancy. Entry SSDs typically have a better cost per read IOPS ratio but lower endurance and performance compared to Mainstream or Performance SSDs.\u003cbr\u003e\u003cbr\u003eSSD write endurance is typically measured by the number of program\/erase (P\/E) cycles that the drive incurs over its lifetime, listed as the total bytes of written data (TBW) in the device specification. The TBW value assigned to a solid-state device is the total bytes of written data (based on the number of P\/E cycles) that a drive can be guaranteed to complete (% of remaining P\/E cycles = % of remaining TBW).\u003cbr\u003e\u003cbr\u003eReaching this limit does not cause the drive to immediately fail. It simply denotes the maximum number of writes that can be guaranteed. A solid-state device will not fail upon reaching the specified TBW. At some point based on manufacturing variance margin, after surpassing the TBW value, the drive will reach the end-of-life point, at which the drive will go into a read-only mode.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"icepim-attributes\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\"\u003eFeatures\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eUL, TUV, FCC, IC, CB, C-Tick Mark,BSMI (Taiwan), KCC (Korea EMI), VCCI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMean time between failures (MTBF)\u003c\/td\u003e\n\u003ctd\u003e2000000 h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUncorrectable Bit Error Rate (UBER)\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 1 per 10^17 bits read\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHot-swap\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eS.M.A.R.T. support\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWrite latency\u003c\/td\u003e\n\u003ctd\u003e220 µs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRead latency\u003c\/td\u003e\n\u003ctd\u003e240 µs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRandom write (4KB)\u003c\/td\u003e\n\u003ctd\u003e60000 IOPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRandom read (4KB)\u003c\/td\u003e\n\u003ctd\u003e230000 IOPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWrite speed\u003c\/td\u003e\n\u003ctd\u003e1000 MB\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRead speed\u003c\/td\u003e\n\u003ctd\u003e1000 MB\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData transfer rate\u003c\/td\u003e\n\u003ctd\u003e12 Gbit\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent for\u003c\/td\u003e\n\u003ctd\u003eDisk array\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory type\u003c\/td\u003e\n\u003ctd\u003eV-NAND TLC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eSAS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSSD form factor\u003c\/td\u003e\n\u003ctd\u003e2.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSSD capacity\u003c\/td\u003e\n\u003ctd\u003e1.92 TB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\"\u003ePower\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower consumption (write)\u003c\/td\u003e\n\u003ctd\u003e12 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower consumption (read)\u003c\/td\u003e\n\u003ctd\u003e9 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\"\u003eWeight \u0026amp; dimensions\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e158 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\"\u003ePackaging data\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage height\u003c\/td\u003e\n\u003ctd\u003e63 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage depth\u003c\/td\u003e\n\u003ctd\u003e174 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage width\u003c\/td\u003e\n\u003ctd\u003e133 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\"\u003eOperational conditions\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum operating altitude\u003c\/td\u003e\n\u003ctd\u003e4572 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating shock\u003c\/td\u003e\n\u003ctd\u003e1500 G\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating vibration\u003c\/td\u003e\n\u003ctd\u003e20 G\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating relative humidity (H-H)\u003c\/td\u003e\n\u003ctd\u003e5 - 95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage temperature (T-T)\u003c\/td\u003e\n\u003ctd\u003e-40 - 85 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature (T-T)\u003c\/td\u003e\n\u003ctd\u003e0 - 70 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\"\u003eOther features\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003eCompliance certificates\u003c\/td\u003e\n\u003ctd\u003eCE, RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\"\u003eLogistics data\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003eHarmonized System (HS) code\u003c\/td\u003e\n\u003ctd\u003e84717070\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Lenovo","offers":[{"title":"Default Title","offer_id":55308820447614,"sku":"4XB7A38176","price":1607.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/0190\/0965\/files\/99fce344d15056a81e850bf6f6b05b74.jpg?v=1756125751","url":"https:\/\/www.backtotheoffice.co.uk\/products\/lenovo-pm1643a-192-tb-25-sas-v-nand-tlc","provider":"Back to the Office","version":"1.0","type":"link"}