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81%
Introduction to behavior-driven monitoring
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Mariya Herasymenko, 123RF
m0.008s Line 8 of the backtrace in Listing 6 shows that the issue is caused by the file permissions: The Nagios user wants to write the webrat.log file but does not have the required permissions
80%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© kudryashka, 123RF.com
, $pdq::CEN, $pdq::FCFS); 27 28 # Time basis in seconds " expressed in milliseconds 29 pdq::SetDemand($node1, $work, 8.0 * 1e-3 * ($users ** 0.085)); 30 pdq::SetDemand($node2, $work, 2.8 * 1e-3); 31 pdq
79%
I/O benchmarks with Fio
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Kheng Ho Toh, 123RF.com
format used by Windows and KDE. The following simple call to Fio fio --name=randomread --rw=randread --size=256m sets up a job titled randomread and then executes the job. To allow this to happen, Fio
79%
High availability clustering on a budget with KVM
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Yulia Saponova, 123RF.com
on; service iscsi start 02 # iscsiadm -m discovery -t st -p 192.168.10.200 03 iqn.2008-01.com.example:storage.iscsi.disk1 04 # iscsiadm -m node -T iqn.2008-01.com.example:storage.iscsi.disk1 -p 192
78%
Aggregate alerts from various monitoring systems
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Lead Image © Chittima Kasa, 123RF.com
the containers: wget https://raw.githubusercontent.com/alerta/docker-alerta/refs/heads/master/docker-compose.yml sed -i -e 's/ADMIN_PASSWORD=.*/ADMIN_PASSWORD=abc123/' docker-compose.yml docker-compose up -d
77%
An IT nomad's daily diary
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© Kateryna Pruchkovska, 123RF.com
I've just completed my first meeting with customers, and they look happy enough but not totally convinced. Maybe they're wondering whether I have bitten off more than I can chew. After all, I'm
76%
Configuration management with Chef
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Alistair Cotton, 123RF.com
. Additionally, it is hard to find help or how-tos, even on the web, if you have a problem. Your best option here is to post your questions on the mailing list http://8. Infos Installation guide: http://wiki.opscode.com
76%
Moving HPC to the cloud
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Zarko Cvijovic, 123RF.com
[5]. I proposed two usage cases. The first was for a small case consisting of 80 cores with 4GB of RAM per core with basic storage of 500GB. POD pricing is based on cores/hour and would work out
76%
Archiving email and documents for small businesses
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Pavlenko Evgenly, fotolia.com
1 split.sh 01 #! /bin/sh 02 for i in `ls -1 archive/cur` 03 do 04 # Define name component for the individual mail directory 05 pref=`date +%Y-%m-%d-%H-%M-%S` 06 07 # Push mail ... 8
76%
Creating RAID systems with Raider
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
©Slawomir Kruz, 123RF.com
% /dev/shm /dev/sda1 485M 35M 425M 8% /boot /dev/mapper/VolGroup-lv_home 235G 188M 222G 1% /home The command raider -R5 sda sdb sdc sdd starts

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