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A Btrfs field test and workshop
31.10.2025
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© Adrian Hillman, 123RF.com
, you can use the current package from Debian Sid [4], which is available there as version 0.19+20120328. After meeting these preconditions, you can start with a fresh Ubuntu 12.04 LTS server default
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Getting started with I/O profiling
30.11.2025
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© Photosani, Fotolia.com
of read requests issued to the device per second. w/s : Number of write requests issued to the device per second. rMB/s : Number of megabytes read from the device per second. wMB/s : Number
15%
Get the best out of your bandwidth with tc
30.11.2025
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© Russell Shively, 123RF.com
is as follows: tc filter add dev $DEV protocol ip parent 1:0 prio 100 u32 match ip $DIR 12.34.56.78 flowid 1:12 You'll be glad to know the filter's config is much simpler than the classes or the qdisc
14%
I/O benchmarks with Fio
30.11.2025
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© Kheng Ho Toh, 123RF.com
/0K /s] [4137 /0 iops] [eta 00m:06s] In the example, the first job is performing a sequential read, marked as r in square brackets, while Fio hasn't initialized the second job, marked as P
14%
Debugging the Linux kernel with the Qemu emulator
30.11.2025
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© Daniela Mangiuca, 123RF.com
. The following command tells the system the hex address of the code segment and the two data segments: add-symbol-file path/hello.ko 0xd8817000 -s .data 0xd88170e0 -s .bss 0xd8817294 Now you can set a breakpoint
13%
Server virtualization with Citrix XenServer
30.11.2025
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Goss Vitalij, Fotolia
processor cores. Depending on the functional scope, the prices are between US$ 1,000 and US$ 5,000, including 12 months of free upgrades, news, and information. For server virtualization newcomers, Citrix
13%
Overview of cloud platforms and appliances
30.11.2025
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Athiphan Chunmano, 123RF
, Hybrids, Software as a Service (SaaS), Platform as a Service (PaaS) – the list goes on and on. In this article, we will attempt to peek through the mist of terminology and provide readers
13%
Configuring the JBoss application server
30.11.2025
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HONGQI ZHANG, 123RF.com
procedure took (Listing 2). Listing 2 Startup Status 01 19:58:19,965 INFO [ServerImpl] JBoss (Microcontainer) [5.1.0.GA (build:SVNTag=JBoss_5_1_0_GA date=200905221634)] Started in 54s:991ms
13%
Network backup with Burp, Obnam, and Backshift
30.11.2025
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© Sergey Peterman, 123RF.com
can exclude files of a certain size (e.g., those of 0MB). The Burp configuration language also provides two size parameters: min_file_size and max_file_size; for example: min_file_size = 0 Mb
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Expand your sphere with a piece of Google
30.11.2025
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© artida, 123RF.com
.setContentType("text/plain"); 10 resp.getWriter().println("Hello World!"); 11 } 12 } Listing 2 Java web.xml for "Hello World!" 01 0" encoding="utf-8"?> 02

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