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13%
Error-correcting code memory keeps single-bit errors at bay
14.11.2013
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»
Archive
»
2013
»
Issue 17: Cloud...
»
of an uncorrectable error by factors of 9-
400
. Uncorrectable errors following a correctable error are still small at 0.1%-2.3% per year. + The incidence of correctable errors increases with age
13%
Tuning SSD RAID for optimal performance
09.08.2015
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»
Archive
»
2015
»
Issue 28: SSD RAID
»
to form a page (e.g., 8KB). Several pages then form a block (~2
MB
). At this level, the first peculiarity of flash memory already comes to light: Whereas new data can be written to unused pages, subsequent
13%
SMART storage device monitoring
29.09.2020
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»
Archive
»
2020
»
Issue 59: Custo...
»
between failure and SMART values. The disks were a combination of consumer-grade drives (SATA and PATA) with speeds from 5,
400
to 7,
200
rpm and capacities ranging from 80 to
400
GB. Several drive
13%
I/O benchmarks with Fio
30.11.2025
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»
Archive
»
2011
»
Issue 5: Pen Te...
»
creates a 256
MB
file in the current directory along with process for the job. This process reads complete file content in random order. Fio records the areas that have already been read and reads each area
13%
Efficiently planning and expanding the capacities of a cloud
02.03.2018
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»
Archive
»
2018
»
Issue 44: Cloud...
»
on to its customers. If you assume the ratio of CPU to RAM provided through corresponding hardware profiles is 1:4, a customer using
12
virtual CPU cores must add at least 48GB of memory. If five
13%
Let the hardware do the heavy lifting
09.06.2018
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»
Archive
»
2018
»
Issue 45: Autom...
»
into dedicated hardware. This trend will only exacerbate with the arrival of
200/400
-gigabit Ethernet (GbE) in 2019, and 800GbE shortly after that; hence, the window for CPU offload will remain open
13%
Processor and Memory Metrics
12.02.2014
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»
HPC
»
Articles
»
.py CPU ALL: 1.0 % CPU0 4.1% CPU1 2.0% CPU
2 0.0
% CPU3 0.0% CPU
4 0.0
% CPU5 0.0% CPU6 0.0% CPU7 2.0% CPU ALL: user: 0.7% nice: 0.0% system: 0.2% idle
13%
DNS filtering with authentication
30.11.2020
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»
Archive
»
2020
»
Issue 60: Secur...
»
to
400
days. The DNS filter generates daily, weekly, and monthly reports at the user level. Some of the prepared logs can be viewed in the dashboard; specifically, the blocking logs for the past
12
hours
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