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  • Article (Print) (127)
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50%
Introduction to LVM
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Dvarg, 123RF.com
this writes an LVM label and some metadata to the PV. The PV is divided up into units of the same size (4MB by default) known as physical extents (PEs). A PE is the smallest allocatable data volume. Figure 1
50%
Enterprise communication with IRC
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© anyka, 123RF.com
. If a hostname is used it 06 * must match the reverse dns of the server. 07 * / 08 host = "10.42.0.1"; 09 10 /* passwords: the passwords we send (OLD C:) and accept (OLD N:). 11
50%
I/O benchmarks with Fio
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Kheng Ho Toh, 123RF.com
it took to process them (lat for latency.) Figure 1 shows the results of a test on a ThinkPad T520 with a 300GB Intel SSD 320 on kernel 3.0. When you are measuring performance, it makes sense to think
50%
Clustering with OpenAIS and Corosync
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
brunoilfo, 123RF.com
ID. Version 3.0 of the cluster suite (in RHEL 6 and Fedora 10 or later), replaces OpenAIS with Corosync [3]. Viewed superficially, not too many changes are seen between the two cluster managers ... 3
50%
RAM revealed
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© KrishnaKumar Sivaraman, 123RF.com
. All told, these measures reduce the energy requirements per gigabyte of RAM from just under 7 watts for ECC DDR2 FB-DIMMs to a current figure of 0.54 watts for ECC DDR3 Registered DIMMs (Table 2
50%
openlava – Hot resource manager
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Konrad Bak, 123RF.com
tmp DISPATCH_WINDOW # Keywords test1 0 () () () () () () n0001 3 () () () () () () default
50%
Network backup with Burp, Obnam, and Backshift
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Sergey Peterman, 123RF.com
version (1.3.0) dates back to January of this year, whereas the current version (1.3.6) was released at the end of May. The associated Windows client is available in the form of an installer file for 32
49%
Configuration management with Chef
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Alistair Cotton, 123RF.com
-certs, make, gcc, and g++. The certificates from ssl-cert will be required later. According to the how-to http://1, Chef prefers RubyGems version 1.3.6 or newer, but not 1.3.7. This version contains a bug
49%
Linux filesystem performance tested
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© nyul, 123rf.com
: Transtech Lynx Calleo Application Server 2260 [1]: CPU/RAM: Intel Xeon E5-2643 (quad-core CPU, eight threads, 3.3GHz)/32GB RAM (DDR-3, 1600MHz, ECC) Controller: LSI Logic Mega RAID SAS 9261-8i PCIe x8, 512MB
49%
Creating and evaluating kernel crash dumps
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© Giuseppe Ramos, 123RF.com
, the problem of writing a dump to an MD RAID or transferring larger kernel images ultimately proved unfixable. Further attempts with Netdump (Red Hat) or Diskdump [3] in 2002 and 2004 also had only moderate

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