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70%
Managing computers with Rex
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Stanislav Rishnyak, 123RF.com
computers running the Linux distributions CentOS 5 and 6, Debian 5 and 6, Fedora, Gentoo, Mageia, openSUSE, RHEL 5 and 6, Scientific Linux, and Ubuntu 10.04, 11.04, and 12.04. Additionally, it can handle
70%
The RADOS object store and Ceph filesystem: Part 2
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Kateryna Pruchkovska, 123RF.com
map for a setup consisting of six OSDs (i.e., individual storage devices in servers) distributed over three racks: crushtool --num_osds 6 -o crush.example.map --build host straw 1 rack straw 2 root
70%
Time flies, but it can still be measured
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
4 block output operations 0 messages sent 0 messages received 0 signals received 4 voluntary context switches 6 involuntary context switches
70%
New Products
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
 
-port, hot-swappable 6Gbps SAS disk drives, dual controllers with up to 180TB of capacity, and 8GB of cache in a 2U 19-inch rackmount enclosure. Additionally, Storwize V3700 features a new FlashCopy function
70%
One metric to rule them all
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
of how many cores a system has because that will alter the system's reaction to load changes. Using stress [6], you can create purely CPU-bound tasks to target a specific system load: stress --cpu 3
70%
Dispatches from the world of IT
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
 
. The TOP500 list also provides insight into which technologies are leading the way in the world of supercomputing. According to the website, systems with multicore processors dominate the list, with 84.6
69%
Successful automatic service detection
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Dmitriy Denysov, 123RF.com
from the respective distribution are allowed. In this case, it can help to extend the local snmpd and use check_snmp_extend [6]. The underlying idea is simple and yet ingenious: New commands
69%
Moving HPC to the cloud
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Zarko Cvijovic, 123RF.com
to be US$ 6,098.00/month or US$ .101/core per hour. A large example of 256 cores with 4GB of RAM per core and 1TB of parallel storage would cost US$ 18,245.00/month with the same US$ .101/core per hour
69%
Netcat – The admin's best friend
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Dmitry Rukhlenko, 123RF.com
of things relating to TCP and UDP since its inception. These days, it handles IPv6 as well as IPv4 beautifully. Its astounding versatility means that integrating it with scripts is a veritable piece of cake
69%
Using Expect scripts to automate tasks
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Kheng Ho Toh, 123RF.com
-- "PASSWORD\r" 49 expect -exact "\r 50 Linux aspen 2.6.32-43-server #97-Ubuntu SMP Wed Sep 5 16:56:41 UTC 2012 x86_64 GNU/Linux\r 51 Ubuntu 10.04.4 LTS\r 52 \r 53 Welcome to the Ubuntu Server!\r 54

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