User Manual

Table 13. SSD feature matrix (continued)
Type Interface Form Factor Endurance Sector Security Capacity
SSD 12 Gbps vSAS 2.5 MU 512e SED 1.92 TB
SSD 12 Gbps vSAS 2.5 MU 512e SED 3.84 TB
SSD 12 Gbps vSAS 2.5 RI 512e SED 3.84 TB
SSD 12 Gbps vSAS 2.5 RI 512e SED 7.68 TB
SSD 12 Gbps vSAS 2.5 RI 512e SED 960 GB
SSD 12 Gbps vSAS 2.5 MU 512e SED 960 GB
SSD 6 Gbps SATA 2.5 MU 512e ISE 1.92 TB
SSD 6 Gbps SATA 2.5 RI 512e ISE 1.92 TB
SSD 6 Gbps SATA 2.5 MU 512e ISE 1.92 TB
SSD 6 Gbps SATA 2.5 RI 512e ISE 1.92 TB
SSD 6 Gbps SATA 2.5 MU 512e ISE 240 GB
SSD 6 Gbps SATA 2.5 RI 512e ISE 3.84 TB
SSD 6 Gbps SATA 2.5 RI 512e ISE 3.84 TB
SSD 6 Gbps SATA 2.5 MU 512e ISE 480 GB
SSD 6 Gbps SATA 2.5 MU 512e ISE 480 GB
SSD 6 Gbps SATA 2.5 MU 512e ISE 960 GB
SSD 6 Gbps SATA 2.5 RI 512e ISE 960 GB
SSD 6 Gbps SATA 2.5 RI 512e ISE 960 GB
SSD 6 Gbps SATA 2.5 MU 512e ISE 960 GB
This document is updated as changes happen, so be sure to bookmark it rather than downloading an offline copy to stay with
the latest information or refer to the Drive and Platform Matrix
SSD Facts
Unlike hard disk drives (HDDs) which use a spinning platter to store data, solid state drives (SSDs) use solid state memory
NAND chips. HDDs have several different mechanical moving parts which make them susceptible to handling damage. Solid
state drives, on the other hand have no moving parts and are therefore much less susceptible to handling damage even when
impacted during use.
SSDs deliver ultra-high-performance input/output operations per second (IOPS), and very low latency for transaction‐intensive
server and storage applications. Properly used in systems with HDDs, they reduce total cost of ownership (TCO) through low
power consumption and low operating temperature.
Dell offers different solid-state drive (SSD) solutions to meet different customer needs. Enterprise SSDs, as a class, are
unique compared to client or consumer based SSD in terms of reliability, performance and architecture. While consumer-based
SSDs, such as those utilized in notebooks are designed with a focus on consumer-based workloads, rigidity and battery life,
enterprise-class SSDs are designed around enterprise application I/O (input/output) requirements with focus points of random
I/O performance, reliability, and protection of data during a sudden power-down.
Understanding the basics of enterprise-class SSDs allow customers to make informed decisions when comparing solutions:
● Over-provisioning: The Achilles' heel of SSDs are their write characteristics. To rewrite an area of an SSD that has already
been written, the data must be erased and then written. In order to overcome a portion of the write performance penalty,
Dell enterprise SSDs found across Dell PowerEdge products, all employ a practice known as over-provisioning of Flash. This
practice keeps native Flash capacity beyond the user-defined capacity and utilizes the additional space as a scratch pad of
sorts to quickly put down application write data on areas of Flash that are already in an erased state. The SSDs perform
cleanup functions of this over-provisioned Flash space during time periods typically not impacting application performance.
● Write Endurance: Write endurance is the number of program/erase (P/E or write cycles) that can be applied to a block of
flash memory before the storage media becomes unreliable. Due to different data center workloads and read/write needs,
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Storage