device-mapper (dm): working with multipath-tools. Part 1 Filed under: SCSI, Linux — admin @ 10:33 Device-mapper (hereafter, dm) is one of the best collection of device drivers that I have ever worked with. It brings high availability, flexibility and more to the Linux 2.6 kernel. Device-mapper is a Linux 2.6 kernel infrastructure that provides a generic way to create virtual layers of a block device while supporting stripping, mirroring, snapshots, concatenation, multipathing, etc. While many modules are built on top of device-mapper, the focus of this article is on multipath-tools. Note that I will be using the terms multipath, multipath-tools and dm-multipath interchangeably to signify the same package. Also note that dm-multipath is the name of the repackaged multipath-tools redistributed under Red Hat in their Advanced Server Linux distribution.
Many enterprise data centers rely on Ethernet for their LAN and data traffic, and on Fibre Channel (FC) networks for their storage infrastructure. With increased adoption of 10GbE in the data center, the availability of Fibre Channel over Ethernet (FCoE), and new lossless 10GbE technologies, it is now possible to consolidate FC SAN storage data flows with LAN and data traffic onto the same unified Ethernet cable. Network convergence will enable enterprises to preserve their existing investments in FC storage, reduce data center costs and complexity, and simplify network management.
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The Library of Congress, one of the biggest libraries in the world, gathers 5 terabytes a month. The NSA sucks up much, much more. "The NSA say it needs all this data to help prevent another terrorist attack like 9/11. In order to find the needle in the haystack, they argue, they need access to the whole haystack."
The Coalition for Local Internet Choice – CLIC – represents a wide range of public and private interests who support the authority of local communities to make the broadband Internet choices that are essential for economic competitiveness, democratic discourse, and quality of life in the 21st century.
1.3.14 President Obama: "Any violation of Ukraine sovereignty would be deeply destabilising" video 2.55min US President Barack Obama has warned Russia there will be "costs" for any military intervention in Ukraine. Oleg Boldyrev, BBC Russian, Simferopol: "Reports came in that fibre optic lines connecting Crimea to the rest of Ukraine were either blocked or damaged. If the mobile or internet connection goes down, it will be the most palpable indication yet of an emergency situation for the local people.
Meddelanden 2012-05-04 Regionförvaltiningsverket I Västra och Inre Finland "En jämlik tillgång till nätmaterial är ett sätt att förebygga intellektuell och digital marginalisering. Ett nationellt digitalt bibliotek som är tillgängligt för alla, finansiering av det digitala biblioteket och material på kundernas modersmål skulle behövas. "
Kommunikationsminister Suvi Lindéns tal i riksdagen 6.10.2009 (HE 176/2009 vp) Hallituksen esitys laeiksi laajakaistarakentamisen tuesta haja-asutusalueilla sekä maaseudun kehittämiseen myönnettävistä tuista annetun lain muuttamisesta. Markus Mustajärvi, Merja Kyllönen /vas Mats Nylund, sfp Ula Karvo/Kok, Anne-Mari Virolainen /kok, Tuulikki Ukkola/Kok, Jouko Laxell /kok, Sanna Lauslahti /kok Elsi Katainen/Kesk, Tuomo Hänninen /kesk, Timo V. Korhonen /kesk, Kyösti Karjula /kesk, Oiva Kaltiokumpu /kesk Tuula Peltonen /sd, Esa Lahtela /sd
By Juha Saarinen Mar 23, 2011 Government still says the UFB would provide downlink speeds of at least 100 Mbps and uplink speeds of at least 50 Mbps. But the CFH price book reveals that the starting point is a substantially more modest 30/10Mbs. The Herald has obtained a "price book" revealing the wholesale charges set by the Government agency in charge of the UFB, Crown Fibre Holdings. Expand Government still says the UFB would provide downlink speeds of at least 100 Mbps and uplink speeds of at least 50 Mbps. But the CFH price book reveals that the starting point is a substantially more modest 30/10Mbs. Photo / Thinkstock Leaked documents show that New Zealand's new ultra-fast broadband network will come with a variety of options and moderate prices, with connections starting at an estimated $47 a month.
2014 The national movement to provide fast, reliable and affordable high-speed Internet comes as Comcast, Time Warner, Verizon and AT&T continue to prohibit municipal freedoms for online access.