What are the Memory RAS features available with Dell PowerEdge R620 server?
With reliability, availability, and serviceability (RAS) feature like hot-pluggable fans, disks, power supply units (PSUs) and even redundant failsafe hypervisors, the R620 keeps the data center running with high reliability.
Memory supported:
The R620 supports up to 768GB of memory (24 DIMMs) and speeds up to 1600MT/s, providing high performance in a variety of applications.
The R620 supports unbuffered DIMMs (UDIMM) and registered DIMMs (RDIMM).
The R620 also supports load reduced DIMMs (LRDIMMs), which use a buffer to reduce memory loading and provide greater density, allowing for the maximum platform memory capacity.
The R620 also supports load reduced DIMMs (LRDIMMs), which use a buffer to reduce memory loading and provide greater density, allowing for the maximum platform memory capacity.
The R620 server on rental Bangalore supports flexible memory configurations ranging from capacities of 2GB to 768GB.
The Dell PowerEdge R620 system supports up to 12 DIMMs per processor (up to 24 DIMMs in a dual-processor configuration).
The R620 has 4 memory channels per processor, with each channel supporting up to 3 DIMMs. The R620 supports memory speeds of 1600MT/s, 1333MT/s, 1066MT/s, and 800MT/s depending on the DIMM types installed and the configuration.
Importance of Memory RAS features:
Increase the uptime
and reduce data loss .
RAS aids in the rapid and accurate diagnosis of faults which require service, increasing the memory reliability.
System uptime is reinforced with RAS features like memory mirroring, sparing, and many others.
RAS aids in the rapid and accurate diagnosis of faults which require service, increasing the memory reliability.
System uptime is reinforced with RAS features like memory mirroring, sparing, and many others.
Memory RAS features:
Memory demand and patrol scrubbing:
Patrol scrubbing proactively searches the system memory, repairing correctable errors. Once a correctable error is detected on a read transaction then demand scrubbing can write corrected data back to the memory
Recovery from single DRAM device failure provides error checking and correction that protects against any single memory chip failure as well as multi-bit errors from any portion of a single memory chip.
Dense configuration optimized profile can increase the memory reliability and this profile can adjust parameters to reduce faults regarding refresh rates, speed, temperature, and voltage
Failed DIMM isolation provides the ability to identify a specific failing DIMM channel pair, and so enabling the user to replace only the failed DIMM pair.
Memory sparing (rank) allocates one rank per channel as a spare. If more correctable errors occur in a rank or channel, it is moved to the spare area while the operating system is running to prevent the error from causing an uncorrectable failure.
Memory thermal throttling helps to optimize power/performance and can also be used to prevent DIMMs from overheating.
Memory mirroring( intra-socket)t is a method of keeping a duplicate (secondary or mirrored) copy of the contents of memory as a redundant backup for use if the primary memory fails. The mirrored copy of the memory is stored in the memory of the same processor socket.
Memory address parity protection provides the ability to detect transient errors on the address lines of the DDR channel.
Reliability, availability, serviceability (RAS) features help keep the Dell Power Edge R620 system online and operational without significant impact to performance, and can decrease data loss and crashing due to errors.
Dell Power Edge R620 RAS aids in rapid, accurate diagnosis of faults which require service.
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