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16%
Rethinking RAID (on Linux)
16.03.2021
Home »  HPC  »  Articles  » 
RAID Status cat /proc/mdstat Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md0 : active raid1 sdd1[1] sdc1[0]       244065408 blocks super 1.2 [2/2] [UU
16%
Unleashing Accelerated Speeds with RAM Drives
02.08.2021
Home »  Archive  »  2021  »  Issue 64: Bare...  » 
Lead Image © Vladimir Nenov, 123RF.com
the configuration and capabilities of memory DIMMs and revealed that my system has four DDR3 RAM devices of 2048MB configured at speeds of 1333MTps (mega transfers per second). Playing with RAM Drives To begin, you
16%
Network analysis with Wireshark
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Reinhard Eisele
-click the packet details in the packet list to add protocol fields. The release of Libpcap 1.0.0 added the ability to define the buffer size for recording and to view JPG files directly in Wireshark. Version 1.6 ... An administrator can only gain useful insights from network analysis if they understand the underlying procedures and protocols. The new version of Wireshark, 1.6, formerly known as Ethereal, can
15%
networkd and nspawn in systemd
11.04.2016
Home »  Archive  »  2016  »  Issue 32: Measu...  » 
Lead Image © Kritiya Sumpun, 123RF.com
of the desired distribution in RAW, TAR, or Docker format and then launch a container based on your choice of image. Listing 6 shows how to download a Fedora 22 image and launch a container based on it
15%
Systemd network management and container handling
13.06.2016
Home »  Archive  »  2016  »  Issue 33: IPv6...  » 
Lead Image © Kritiya Sumpun, 123RF.com
, or Docker flavor and then start a container on the basis of that image. Listing 6 shows how to download a Fedora 22 image and start a new container based on it. Listing 6 Download and Start
15%
Rethinking RAID (on Linux)
25.03.2021
Home »  Archive  »  2021  »  Issue 62: Lean...  » 
Lead Image © nikkikii, 123RF.com
[1] sdc1[0] 244065408 blocks super 1.2 [2/2] [UU] [=>...................] resync = 6.4% (15812032/244065408) finish=19.1min speed=198449K/sec bitmap: 2/2 pages [8KB], 65536KB chunk
15%
Getting started with I/O profiling
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Photosani, Fotolia.com
Analyzer report) In Table 2, you'll see that most of the data is passed in 1 to 8KB chunks (all-zero rows >100MB have been removed), with the vast majority in 1KB or smaller chunks. This indicates
15%
An army of Xeon cores to do your bidding
30.01.2024
Home »  Archive  »  2024  »  Issue 79: Monit...  » 
Lead Image © Lucy Baldwin, 123RF.com
Dell Precision Workstation T7910 Power 1,300W CPU 2x Intel Xeon Gold E5-2699 V4, 22 cores, 2.4GHz, 55MB of cache, LGA 2011-3 GPU, NPU n/a* Memory
15%
Linux device mapper writecache
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © lightwise, 123R.com
=1): err= 0: pid=1634: Mon Oct 14 22:18:59 2019 write: IOPS=118k, BW=463MiB/s (485MB/s)(10.0GiB/22123msec); 0 zone resets [ ... ] Run status group 0 (all jobs): WRITE: bw=463MiB/s (485MB/s), 463Mi
15%
Fundamentals of I/O benchmarking
11.04.2016
Home »  Archive  »  2016  »  Issue 32: Measu...  » 
Lead Image © Kheng Ho Toh, 123RF.com
/s wMB/s avgrq-sz ... sdb 0.00 28.00 1.00 259.00 0.00 119.29 939.69 ... Parallelism Multiple computers can access enterprise storage, and multiple threads can access

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