*Samsung SM863 960GB 2.5\" (MZ-7KM9600) SSD SATA 1TB Enterprise Grade V-NAND For Sale
![*Samsung SM863 960GB 2.5\](img-large/g/FmEAAOSwi69Z0a~1/s-l1600/-Samsung-SM863-960GB-2-5-MZ-7KM9600-SSD-SATA-1TB-E.jpg "*Samsung SM863 960GB 2.5\")
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*Samsung SM863 960GB 2.5\" (MZ-7KM9600) SSD SATA 1TB Enterprise Grade V-NAND:
$409.99
**Carefully removed form working system**
*Very Low Host Writes*
Model number: MZ-7KM9600
MPN: MZ7KM960HAHP-00005
The SM863\'s 3D MLC NAND consumes much less power than its TLC-powered PM863 companion does during operation. The 960GB PM863 TLC model averages 2.9/3.8 Watts read/write during operation in comparison to the SM863 with MLC NAND, which requires 2.2/2.9 Watts read/write. Samsung\'s 3D V-NAND is spec\'d as more power efficient than planar competitors, which we will test extensively during our test regimen.
There are no thermal pads for either the controller or the NAND packages. The use of thermal pads for NAND packages has declined because smaller lithography (and 3D) NAND consumes less power, and thus generates less heat. However, many manufacturers are still employing thermal pads to help the SSD controller shed heat in demanding environments, which prevents thermal throttling.
The Samsung-proprietary S4LP052X01-8030 \"Mercury\" controller on the SM863 is much more powerful than its predecessor (the 300 MHz MDX featured on the 845DC Pro). This 8-channel controller features three Cortex-R cores that run at 500MHz, with one core handling read requests, one managing write activity, and the remaining core dedicated to host interaction.
A 1GB LPDDR3 DRAM buffer flanks the controller, but it supports up to 2GB of DRAM. The ability to manage a large amount of NAND is important for LBA mapping purposes, which in turn enables the SSD to manage the increased NAND capacity. The SM863 series tops out at 1.92TB.
Samsung is one of very few companies that actually includes their IOPS consistency and QoS metrics in the product specifications. The focus on offering consistent performance and solid QoS metrics is important due to the direct impact on application performance. Inconsistent performance also adversely affects the entire array when SSDs are in RAID arrays. The SM863 provides similar characteristics in comparison to the higher-endurance 845DC Pro, which is an encouraging sign. Another interesting caveat is that the SM863 also features the same QoS and IOPS consistency metrics as the TLC-powered PM863.
This indicates that consistency and QoS characteristics are largely determined by the controller and firmware, as opposed to the underlying media. Administrators can manage the SSD with Samsung\'s SSD Magician DC software, which is compatible with Windows, RHEL, CentOS and Ubuntu 12.04 LTS (restrictions apply to older kernels). The utility offers both a GUI and command line utility that ease key management tasks, such as secure erasing the SSD, adding extra overprovisioning, updating firmware, controlling internal drive cache settings and monitoring S.M.A.R.T. value to determine the SSDs health, temperature and remaining endurance.
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