Help Me Choose: Primary Storage | Dell

 
The hard drive is the primary storage unit of the computer. The operating system, applications, files and data are stored on the hard drive. If this Dell Precision™ is used for digital video editing or audio file storage, or for working with storage intense applications, you should consider buying a faster hard drive with more capacity.

Replacing a hard drive, either as an upgrade or because of a failure, can be challenging. The best way to avoid this inconvenience is to choose a hard drive that meets your needs well into the future by considering these seven factors
  1. Capacity requirements. More gigabytes (GB) mean more capacity. Presentations, videos, spreadsheets and photos take up much more space than word processing documents and emails and will require a hard drive with more capacity.
  2. The importance of the data. Sensitive data such as customer information, financial records and medical history can be better protected by a full disk encryption hard drive (FDE).
  3. Performance. Hard drive performance is influenced by the speed of the drive measured in revolutions per minute (rpm) and the use of flash memory to accelerate data access. Higher rpm means higher performance. Flash memory can also enhance drive performance by allowing data access without waiting for the drive to spin up. This can provide advantages in boot time as well as application launches. New innovations such as hybrid hard drives (HHDs), Intel® Turbo memory and solid-state hard drives — all rely on flash memory to enhance performance. Solid-state drives have no moving parts so their speed is not measured in rpm.
  4. Durability. Most hard drives have moving parts, making them vulnerable to certain impacts, vibrations and other movement that can lead to a crashed hard drive. New innovations such as solid-state drives help protect against impacts and can reduce the risk of failure. If you are usually on the go, work in the field or often run through airports, you should consider a solid-state drive for added durability.
  5. Self-encrypting Drives (SED): Help keep your data safe by using powerful, hardware-based encryption without a negative impact on performance. The encryption engine is built directly into the drive controller; thus all encryption is done at the full speed of the hard drive. On SED drives even the password is encrypted, so your data has an additional layer of protection whether the drive is in the system or on its own if stolen. SED drives are easy to use and deploy with a quick and secure erase for HDD disposal or reuse. SED's are Opal 2.0 compliant.
  6. FIPS-certified SED: Federal government requirements have driven more strict standards on data protection. Dell has endeavored to meet these needs by offering the FIPS 140-2-certified encrypted HDD. Offering all of the features of the standard SSD, plus FIPS tamper resistant seal and unique encryption algorithm, the FIPS encrypted drive offers outstanding data security protection. The FIPS encrypted drive is designed to appeal to federal government employers, healthcare and financial markets where data security is of utmost importance.
  7. Hybrid Drives: Hard disk with up to 32GB of flash storage. Dell hybrid drives provide an increased performance and responsiveness over regular hard drives.
Dell offers the following types of storage products on its workstation products.

Solid-state Drives (SSDs) — are the newest innovation in storage. Dell SSDs provide exceptional system performance, up to 16 percent greater than 7200 rpm drives,1 and added durability2 and reliability unmatched by standard hard drives. SSDs are virtually silent and give out less heat helping create a better experience. SSD's come in two different interface's SATA or PCIe. PCIe has up to 4 times the theoretical bandwidth of SATA and is supported by the NVMe host protocol. SSD's come in two form factors, M.2 and 2.5" (SATA only).

Dell Offers 2 Classes of SSD's a mainstream offering (Class 20 SATA or Class 40 PCIe) and a high performance offering (Class 30 SATA and Class 50 PCIe)

Hard Disk Drives (HDD's) — Dell Precision products offer a full range of HDDs, including an FIPS-certified encrypted HDD. Dell’s fast response free fall sensor technology can sense if a system is falling and "park" the heads in a safe position to help protect the drive from failure and potential data loss. By having this technology in the system, these Dell drives can detect and react quickly to protect your data.

Hybrid Hard Drives – Hybrid drives are similar to standard hard disk drives except they add a small amount, typically 8GB of solid state storage to help speed up data access. This results in a faster response time and less waiting.

PCIe based Add-in-Cards - Taking advantage of the latest M.2 SSD form factor, you can populate the Dell Ultra-Speed Drive with up to 4TB of incredibly fast storage – and leave conventional drive bays available for archiving on spinning disks.
If you want ...Choose ...
A storage solution designed for High CapacityA traditional Hard Drive (HDD)
A storage solution designed to be Quiet, Fast, ReliableA Class 20 SATA SSD; up to 5x faster than HDD – this is the mainstream volume offering
A storage solution that is best in Class SATA performanceA Class 30 SATA SSD
A storage solution designed for fast performance, higher capacity, and improved power efficiencyA Class 40 PCIe SSD; up to 15x faster than HDD – this is the mainstream volume PCIe offering
A storage solution designed for High Performance and EnduranceA Class 50 PCIe SSD: up to 21x faster than HDD