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20%
Proactive Monitoring
11.10.2016
Home »  Archive  »  2016  »  Issue 35: Persi...  » 
Lead Image © Tom Wang, 123RF.com
(every 5 seconds): 14 (periodically-expire 5) 15 16 ; Email address used to send notifications: 17 (def email (mailer {:from "riemann@example.com"})) 18 19 ; Index: Definition 20 (let [index (index)] 21
20%
HPC fundamentals
16.08.2018
Home »  Archive  »  2018  »  Issue 46: CMS S...  » 
Lead Image © Kasia biel, 123RF.com
pdsh read the hosts from a file other than the WCOLL environment variable: $ pdsh -w ^/tmp/hosts uptime 192.168.1.4: 15:51:39 up 8:35, 12 users, load average: 0.64, 0.38, 0.20 192.168.1.250: 15:47:53 up
20%
Fundamentals of I/O benchmarking
11.04.2016
Home »  Archive  »  2016  »  Issue 32: Measu...  » 
Lead Image © Kheng Ho Toh, 123RF.com
Example # iostat -xmt 1 /dev/sda Linux 3.16.7-21-desktop (tweedleburg) 08/07/15 _x86_64_ (8 CPU) 08/07/15 17:25:13 avg-cpu: %user %nice %system %iowait %steal %idle 1
20%
Ansible collections simplify AIX automation
05.08.2024
Home »  Archive  »  2024  »  Issue 82: Sover...  » 
Lead Image © alexutemov, 123RF.com
.yml playbook to remove the uprintfd entry from the /etc/inittab file on the AIX host (Listing 15). Note that the state: directive is set to absent, meaning the /etc/inittab entry should be removed if it exists
20%
Storage trends for taming the flood of data
27.09.2024
Home »  Archive  »  2024  »  Issue 83: Storage  » 
Lead Image © Natalia Lukiyanova, 123RF.com
, but the SSD writes 1.5MB, the SSD has a WAF value of 1.5. A WAF of 1 with zero overhead would be ideal. Sequential write operations come closest because they store large contiguous blocks of data. The WAF
20%
Kea, the ISC's successor to the DHCP daemon
03.08.2023
Home »  Archive  »  2023  »  Issue 76: Energ...  » 
Photo by Markus Winkler on Unsplash
followed by the number of the configured DHCP option. For example, the block from Listing 2 sets DHCPv4 option code 15 (domain-name). Listing 2 Dictionary Entry { "code": 15, "data
20%
Matlab-like tools for high-performance computing
16.05.2013
Home »  Archive  »  2013  »  Issue 14: Samba 4  » 
result on host 15 16 // Free device memory 17 dA = gpuFree(dA); 18 dC = gpuFree(dC); 19 d1 = gpuFree(d1); 20 d2 = gpuFree(d2); 21 d3 = gpuFree(d3); Scilab has a vibrant community, and the excellent
20%
Moving HPC to the cloud
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Zarko Cvijovic, 123RF.com
.4/hour (US$ 0.15/core per hour), Cluster GPU instance is US$ 2.1/hour, and the High I/O instance is US$ 3.1/hour. Thus, using the small usage case (80 cores, 4GB of RAM per core, and basic storage of 500
20%
Creating KVM machines with BoxGrinder and VMBuilder
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© yewkeo, 123RF.com
for VirtualBox 14 - virtualpc plugin for VirtualPC 15 16 Available delivery plugins: 17 - s3 plugin for Amazon Simple Storage Service (Amazon S3) 18 - cloudfront plugin for Amazon Simple Storage
20%
pfSense firewall and router distribution
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Sergey Mironov, 123RF.com
pressing Save , whenever a client on the LAN tries to access the Internet, the user is automatically shown the login screen that you can see in Figure 15. The user needs to enter the credentials stored

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