Technical Guide
Table Of Contents
- Dell EMC PowerEdge R250 Technical Guide
- Contents
- System overview
- System features and generational comparison
- Chassis views and features
- Processor
- Memory subsystem
- Storage
- Expansion cards and expansion card risers
- Power, thermal, and acoustics
- Rack, rails, and cable management
- Supported operating systems
- Dell EMC OpenManage systems management
- Dell Technologies Services
- Dell EMC ProDeploy Enterprise Suite
- Dell EMC Remote Consulting Services
- Dell EMC Data Migration Service
- Dell EMC ProSupport Enterprise Suite
- Dell EMC ProSupport Plus for Enterprise
- Dell EMC ProSupport for Enterprise
- Dell EMC ProSupport One for Data Center
- ProSupport for HPC
- Support Technologies
- Dell Technologies Education Services
- Dell Technologies Consulting Services
- Dell EMC Managed Services
- Appendix A: Additional specifications
- Appendix B. Standards compliance
- Appendix C Additional resources
Dell offers different enterprise SSDs with different endurance ratings so customers can design the right solution for their
needs.
Below are the different categories (swim lanes) of enterprise SSDs Dell offers:
● Write Intensive (WI): 50/50 read/write workloads with highest endurance. HPC, Database logging, and caching are example
workloads.
● Mix Use (MU): 70/30 read/write workloads with medium endurance. E-mail/messaging, OLTP, and E-commerce are
example workloads.
● Read Intensive (RI): 90/10 read/write workloads with lower endurance. Database warehousing, media streaming, and VOD
solutions are example workloads.
● Boot Optimized (Boot): Lowest cost/small capacity SSDs designed to be used as a boot device in servers. Low endurance.
Dell enterprise SSDs support four kinds of host interface options:
● SATA SSD: SATA SSDs are based on the industry standard SATA interface. SATA SSDs provide reasonable performance for
enterprise servers.
● Value SAS: Value SAS is a new class of SAS SSD that leverages the PowerEdge SAS server infrastructure to deliver SAS like
performance at a cost that is competitive with SATA.
● SAS SSD: SAS SSDs are based on the industry standard SAS interface. SAS SSDs combine superior reliability, data integrity,
and data fail recovery making them suitable for enterprise applications.
● PCIe SSD: The Dell PowerEdge Express Flash PCIe SSD is a high-performance solid-state storage device that enables IOPS
performance of up to 2000X more than conventional rotating hard drives.
○ SSD Help Me Choose click here
○ SSD Performance Spec Docs click here
External Storage
The R250 support the external storage device types listed in the table below.
Table 14. Support external storage devices
Device Type Description
External Tape Supports connection to external USB tape products
NAS/IDM appliance software Supports NAS software stack
JBOD Supports connection to 12 Gb MD-Series JBODs
Storage 25