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13%
Build storage pools with GlusterFS
15.08.2016
Home »  Archive  »  2016  »  Issue 34: Softw...  » 
Lead Image © jala, Fotolia.com
. Figure 1: Client systems access the desired GlusterFS volume via a single namespace. (Red Hat CC BY-SA 3.0 [1]) When you look under the hood of GlusterFS, it is striking that the filesystem
13%
From debugging to exploiting
17.02.2015
Home »  Archive  »  2015  »  Issue 25: Safe...  » 
Lead Image © Maksim Kabou, 123RF.com
168 (gdb) p j $3 = 144 (gdb) c Breakpoint 2, Calc_vacf () at MD.o.c:671 671 vacf[j-i]=0; (gdb) p &j $6 = (int *) 0xffffc168 (gdb) p j $7 = 144 On the other hand, when dealing with the ELF
13%
SMART storage device monitoring
29.09.2020
Home »  Archive  »  2020  »  Issue 59: Custo...  » 
Lead Image © Sk Design, Fotolia.com
never predict more than half of the failed drives." Temperature effects are interesting, in that high temperatures start affecting older drives (3-4 years old or older), but lower temperatures can also
13%
Serverless computing with AWS Lambda
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © joingate, 123RF.com
Management Console [3] Lambda service page with an orange Create function button. Figure 1: The page where you will create a Lambda function. If you
13%
Managing Linux Memory
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © J.R. Bale, 123RF.com
systems, distinguishes between virtual memory, which the operating system and applications see, and physical memory, which is provided by the hardware of the machine, the virtualizer, or both [2] [3]. Both
13%
Warewulf Cluster Manager – Administration and Monitoring
21.08.2012
Home »  HPC  »  Articles  » 
: 18:59:43 up 2:42, 5 users, load average: 0.05, 0.02, 0.01 n0001: ssh: connect to host n0001 port 22: Connection timed out pdsh@test1: n0001: ssh exited with exit code 255 You can do many other
13%
A smoke-jumping admin's best friend
09.04.2019
Home »  Archive  »  2019  »  Issue 50: Bpfilter  » 
Lead Image © Thomas Detert, Fotolia.com
. Figure 1: Ncurses-based menuconfig (Wikipedia, CC BY-SA 3.0). Another option is Newt [22], a programming library that focuses on color TUIs (Figure 2) and uses a widget approach, making programming
13%
Mocking and emulating AWS and GCP services
05.08.2024
Home »  Archive  »  2024  »  Issue 82: Sover...  » 
Lead Image © Juri Samsonov, Fotolia.com
python-pubsub/samples/snippets python3 publisher.py demo create demo python3 subscriber.py demo create demo demo python3 publisher.py demo publish demo python3 subscriber.py demo receive demo 20 echo
13%
Coordinating distributed systems with ZooKeeper
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © smileus, 123RF.com
can run a ZooKeeper server in standalone mode or with replication; you can see a sample configuration in the online manual [2] [3]. The second case seems more favorable for distributed filesystems
13%
IPv6 Tables
20.05.2014
Home »  Archive  »  2014  »  Issue 20: IPv6...  » 
Lead Image © gepard1979, 123RF.com
, from, or through the system is possible, not even loopback traffic (Figure 3). But, because loopback should always be allowed, you add a loopback rule

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