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18%
Improved Performance with Parallel I/O
08.10.2015
Home »  Archive  »  2015  »  Issue 29: Rescu...  » 
Lead Image © Ying Feng Johansson, 123RF.com
seconds) and 80% parallel (800 seconds), but with only one process. Amdahl's Law says the speedup is 1.00. As the number of processes increase, the wall clock time of the parallel portion decreases
18%
Getting a free TLS certificate from Let's Encrypt
13.06.2016
Home »  Archive  »  2016  »  Issue 33: IPv6...  » 
Lead Image © Stuart Miles, 123RF.com
echo " certificates exist, but apparently are very fresh, do not get new ones" 50 sleep 3 51 # notify and exit this loop iteration, continuing with the next 52
18%
Ansible collections simplify AIX automation
05.08.2024
Home »  Archive  »  2024  »  Issue 82: Sover...  » 
Lead Image © alexutemov, 123RF.com
quark | CHANGED | rc=0 >> /dev/testlv 64.00 62.67 3% 4 1% /testfs Now, to create a playbook to remove the filesystem you just created, go to the /etc
18%
Understanding Cybersecurity Maturity Model Certification
28.11.2022
Home »  Archive  »  2022  »  Issue 72: OpenS...  » 
Photo by Braden Collum on Unsplash
data not covered by CMMC is secret (S), top secret (TS), or top secret sensitive compartmented information (TS-SCI). Within the unclassified data and information category of material are distinct
18%
Storage cluster management with LINSTOR
04.08.2020
Home »  Archive  »  2020  »  Issue 58: Graph...  » 
Lead Image © sdecoret, 123RF.com
Origin Data% Meta% Move LocalData_00000 drbdpool Vwi-a-tz-- 152.00m thinpool 0.04 thinpool drbdpool twi-aotz-- 300.00m 0.02 10.94 The next application example
18%
Automation with PXE Boot
05.12.2014
Home »  Archive  »  2014  »  Issue 24: Visua...  » 
Lead Image © Sergey Jarochkin, 123RF.com
OS server. PXE (or Preboot eXecution Environment) started in the early 1990s as an improvement to a series of protocols used to bootstrap diskless clients. The idea was to provide a complete boot
18%
Getting started with the OpenStack cloud computing framework
28.06.2011
Home »  CloudAge  »  Articles  » 
 
balancing). The OpenStack initiative, which was initiated in July 2010 by US hosting service provider Rackspace, NASA, and other partners, is designed to provide provide an IaaS (Infrastructure as Service
18%
VTP for VLAN management
04.10.2018
Home »  Archive  »  2018  »  Issue 47: Findi...  » 
Lead Image © bluedarkat, 123RF.com
for the configuration commands), VLAN20 needs to be created on SW1 and SW2 for red hosts to communicate, whereas VLAN 30 must be on SW2 and SW3 for the blue hosts to communicate. If you want the green hosts
18%
Build operating system images on demand
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © Nataliya Hora, 123RF.com
too much manual intervention. Quite remarkably, FAI was created back in the late 1990s, long before automation tools such as Puppet or Ansible existed. FAI offered the ability to roll out an OS
18%
Resource monitoring for remote applications
09.10.2017
Home »  Archive  »  2017  »  Issue 41: Kuber...  » 
Lead Image Gustavo Quepón on Unsplash.com
of profiling [2], I have focused on individual applications, either serial or parallel [3]. Profiling usually means trying to understand application resource usage patterns by answering questions such as: "How

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