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45%
I/O benchmarks with Fio
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Kheng Ho Toh, 123RF.com
SUSE 11.3, the benchmark repository offers an up-to-date package [1]. Fio is also included with Fedora. The source code from the tarball or Git repository can be compiled with a simple make, assuming you
45%
Enterprise software management with Red Hat Satellite Server
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© robbiverte, 123RF.com
installation script installs an Apache 2.2 web server. Figure 6 shows the Overview page, which provides a single view of tasks and critical systems. To view the Systems page, where the Satellite administrator
44%
Getting started with I/O profiling
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Photosani, Fotolia.com
fsync 21 21 21 21 21 22 26 31 lseekm 3,848 766 2,946 762 739 738 757 3
44%
An IT nomad's daily diary
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© Kateryna Pruchkovska, 123RF.com
magazine [3]. In other words, the many Cobbler system records are really the biggest problem. Just to jog your memory: Using system records, Cobbler can create an individual PXE configuration file for each ... 6
44%
Business continuity for small to medium-sized enterprises
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Andrea, Fotolia.com
combinations are supported: ShadowProtect 4.0.1: Oracle VirtualBox 3.1.0--3.2.6 ShadowProtect 4.0.5: Oracle VirtualBox 3.1.0--3.2.12 ShadowProtect 4.1: Oracle VirtualBox 3.1.0--4.0.4 Shadow
43%
Tracing applications with OProfile and SystemTap
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© boing, Photocase.com
. The target systems only require the systemtap-runtime RPM and the staprun program it contains. The following command creates a prebuilt binary kernel module for the target system: stap -r kernel-PAE-2.6.31.12-174.2.22
43%
Neglected IPv6 features endanger the LAN
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Stanislaw Tokarski, 123RF.com
::1 (all nodes; Figure 3). The payload of this message includes all valid IPv6 prefixes on the local subnet and other flags that allow a sophisticated configuration. The RA message is also repeated ... IPv6 is establishing itself in everyday IT life, and all modern operating systems from Windows, through Mac OS X, to Linux have it on board; but if you let IPv6 introduce itself into your environment ... Unmanaged IPv6 ... Neglected IPv6 features endanger the LAN
43%
Beyond monitoring: Mathematical load simulation in Perl
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© kudryashka, 123RF.com
Model"; 11 $work = "ebiz-tx"; 12 $node1 = "WebServer"; 13 $node2 = "AppServer"; 14 $node3 = "DBMServer"; 15 $think = 0.0 * 1e-3; # as per test system 16 $dtime = 2.2 * 1e-3; # dummy service time 17 18 ... 6
43%
Virtualization via Zones
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Pei Ling Hoo, 123RF.com
using? 07 1) ANSI Standard CRT 08 2) DEC VT100 09 3) PC Console 10 4) Sun Command Tool 11 5) Sun Workstation 12 6) X Terminal Emulator (xterms) 13 7) Other 14 Type the number of your choice
42%
High-availability workshop: GFS with DRBD and Pacemaker
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Maxim Borovkov, 123RF.com
cluster nodes, and the ext3 driver on node A wouldn't have the option of querying the state of the same DRBD resources on node B if it wanted to write to the medium. In the worst case, a write to the DRBD

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