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16%
Software RAID in Windows, macOS, and Linux
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Photo by Mirko Blicke on Unsplash
. In contrast to RAID4, the parity data is distributed across the disks. RAID5 can compensate for the loss of a disk. RAID6: At least six hard disks are required. RAID6 can compensate for the loss of two disks
16%
Server administration using Cockpit
09.08.2015
Home »  Archive  »  2015  »  Issue 28: SSD RAID  » 
Lead Image © Alexandr Marinenko, 123RF.com
.bz2 archive out of the latest stable Cockpit version from the GitHub repository [6], unzip it, and then compile Cockpit using the well-known rule of three: ./configure make make install You then need
16%
Bpfilter offers a new approach to packet filtering in Linux
09.04.2019
Home »  Archive  »  2019  »  Issue 50: Bpfilter  » 
Lead Image © alphaspirit, 123RF.com
100Mbit per second to 100GBit per second in 2018. In principle, netfilter has to deal with four types of data traffic: It is responsible for IPv4, IPv6, ARP, and the lesser known Ethernet packets
16%
Supercharge Your Website with Amazon CloudFront
01.04.2014
Home »  Articles  » 
 
on to improve your site performance. Figure 1: My Pre-optimized Google PageSpeed Insights site scores: desktop 75/100; mobile 62/100. Performance Boosters
16%
Parallel Shells: Run Commands on Multiple Nodes
02.07.2014
Home »  HPC  »  Articles  » 
: [laytonjb@home4 ~]$ pdsh -w 192.168.1.250 uname -r 192.168.1.250: 2.6.32-431.11.2.el6.x86_64 The -w option means I am specifying the node(s) that will run the command. In this case, I specified the IP
16%
The Benefit of Hybrid Drives
21.08.2014
Home »  Archive  »  2014  »  Issue 22: OpenS...  » 
Lead Image © Vaclav Volrab, 123RF.com
simulates a lottery with 100 tickets. Each ticket contains the name of a 100MB test file. In total, there are 10 different, equally large test files (called a to j ), but they occur a different number
16%
Parallel Programming with OpenMP
21.11.2012
Home »  HPC  »  Articles  » 
(unew(i,j)-u(i,j)) ) 141 ENDDO 142 ENDDO 143 144 IF(MOD(iter,10)==0) WRITE(*,"('iter,diff:',i6,e12.4)") iter,diff 145 146 ! Update solution 147 DO j=2,m-1 148 DO i=2,m-1 149 u(i,j) = unew
16%
Review: Accelerator card by OCZ for ESX server
16.05.2013
Home »  Archive  »  2013  »  Issue 14: Samba 4  » 
© gortan123, 123RF.com
rates are unquestionably impressive. Thanks to the cache, at least five clients can read around 100MBps from the iSCSI targets, resulting in an aggregated read rate of 500MBps; without the accelerator
16%
SmartOS as a virtualization platform
20.03.2014
Home »  Archive  »  2014  »  Issue 19: Perim...  » 
Lead Image © Paulus NR, 123RF.com
VMs. Listing 3 centos6.5.dsmanifest 01 { 02 "name": "centos-6.5", 03 version: "1.0.0", 04 "type": "zvol", 05 "cpu_type": "qemu64", 06 "description": "Centos 6.5 VM 1.0.0
16%
The best performance yet
26.01.2025
Home »  Archive  »  2025  »  Issue 85: Monit...  » 
Lead Image © Lucy Baldwin, 123RF.com
in combination with a card supporting the extended standard (SDXC). CQ mode was introduced in 2017 with version 6.0 of the SD specification [4], but although the Linux kernel had been supporting CQ mode for e

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