ion has added a new option to its SR-71mach6 SpeedServer™ Configurator to allow the selection of Intel® Optane™ SSDs from the 905P Enthusiast series. Compared to Intel’s Optane DC P4800X series, this family continues to deliver an Uncorrectable Bit Error Rate (UBER) of 1 sector per 10^17 bits read but the endurance drops from an astounding 60 full drive writes per day to only Continue reading ion SR-71mach6 adds Enthusiast-series Optane™ drive options→
SSDs in servers deliver performance, whether measured in IOPS or GBps or latency, that is just plain impossible with disks. SSD capacity is now greater than that of performance disks. Price is the factor that still keeps many organizations away from deploying servers with SSD storage when the improved performance is not a significant benefit. The better reliability of SSD might be more important. Continue reading SSD vs HDD RAID in Servers and Storage→
Most “server” deployments deserve a rich, robust server platform with redundant power, redundant cooling, redundant storage, multiple network paths and error-correcting memory, but many servers already have redundant applications and redundant data. In some of these deployments it then becomes reasonable to consider a small, cool, low-power alternative approach with redundant storage and two network interfaces for redundant communications. ion calls that a miniSERVER. Continue reading ion miniSERVER→
For years, ion has reported usable capacity of disk and SSD storage in GiB and TiB instead of GB and TB. Why? And what’s the difference? Basically, 1 GB = 1,000,000,000 bytes while 1 GiB = 1,073,741,824 bytes. That is about 7%! Look at ion‘s SR-71mach6 SpeedServer or PS StorageServer for examples of capacity reporting. You can learn more about the differences in the Continue reading Storage Capacity: TB vs TiB→
Servers based on Intel® Xeon® Scalable Processors, the proccesor architecture known as “Skylake”, have arrived! ion is producing 1U and 2U rackmount servers along with pedestal/4U servers and high density half-U compute nodes. These servers feature much improved capability for NVMe SSDs and significantly higher memory bandwidth, along with options for more cores and higher clock speeds. Intel® Xeon® Scalable Processors include a number Continue reading ion P-series Servers with Intel Xeon Scalable Processors→
As part of ION’s extensive benchmarking of the SR-71mach5 SpeedServer platform, ION uncovered a memory leak in Windows Server 2012 R2 acting as an SMB3 File Server under very heavy load. There does not seem to be an issue with larger blocks or when the queue depth is low, but you can watch it in action here while serving 8kB random reads with 16 Continue reading Memory Leak Found→
2019 Update: Intel Xeon Scalable Processors have added significant support for NVMe SSDs. We believe that these improvements make NVMe SSDs the high performance storage approach of choice, but have not yet been able to complete testing of that theory. Our recommendations at this point are to use NVMe where performance matters. And where the highest level of performance with the lowest possible latency Continue reading Observations on NVMe SSDs in Server Applications→
Much of modern storage management focuses on efficient use and allocation of storage capacity. “Thin provisioning” is a primary mechanism for this, allocating just enough space to match each consumer‘s current needs, while promising more capacity when needed. Thin provisioning is an effective tool for allocation of storage capacity. When latency, bandwidth and IOPS are more important, thin provisioning makes these performance results nondeterministic. Continue reading Thin Provisioning: Nondeterministic Storage Feature #2→
Every producer of storage software (including what is hidden inside of “hardware”) has spent years and many engineering hours developing their cache algorithms. Disks have cache; controllers have cache; subsystems have cache; operating systems have cache. The better the algorithm is, the better the ratio of cache hits to cache misses. Ultimately though, the decision of what to have in cache is a guess. Continue reading Cache: Nondeterministic Storage Feature #1→
ION® Computer Systems, Inc. recently published benchmark results for its SR-71mach5 SpeedServer™ running Microsoft® Windows® Server 2012 R2 with the SMB 3.1 protocol. Yes, the performance is “Disk-Impossible!”. A single 2U “mach5” system costing under $80k served 64kB random reads at 10 Gigabytes per second and delivered 8kB random reads at 1 million Input/Output Operations per second. Average latency as low as 1ms was Continue reading Disk-Impossible File Server→
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