Bacula is a set of Open Source, enterprise ready, computer programs that permit you (or the system administrator) to manage backup, recovery, and verification of computer data across a network of computers of different kinds. Bacula is relatively easy to use and efficient, while offering many advanced storage management features that make it easy to find and recover lost or damaged files. In technical terms, it is an Open Source, enterprise ready, network based backup program.
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.
One of the main advantages of using Negative type film is the ability to capture a wider dynamic range than can be achieved with Reversal types (slide/chromes). Unfortunately the image data is usually compressed into a much smaller density range. The big trade-off is our inability to immediately see the information due to the orange mask.
Create an iso image from the contents of a directory: mkisofs -hide-joliet-trans-tbl -l -J -f -T -r . > "../directory_dump_`basename $PWD`.iso" When run in a directory (say tmp) it will create a file called directory_dump_tmp.iso one directory higher, which will contain the contents of the tmp directory in it's root.
Friday, March 13, 2009 Extra Repositories for Ubuntu 8.10 You Might Want Ubuntu logoImage via Wikipedia The repository system is a great strength of open-source operating systems, but some people want the latest-and-greatest of a particular application while keeping the core system unchanged. There is also the situation where non-free applications aren't available from within the standard repositories. In these two cases, adding outside repos can help you get the functionality you want. I've done some homework for you and here are the "Extra Repositories for Ubuntu 8.10 You Might Want." Simply open up System > Administration > Software Sources and add the repository lines listed below as a third-party repository.
FOR MORE THAN HALF A CENTURY the eminent physicist Freeman Dyson has quietly resided in Princeton, N.J., on the wooded former farmland that is home to his employer, the Institute for Advanced Study, this country’s most rarefied community of scholars. Lately, however, since coming “out of the closet as far as global warming is concerned,” as Dyson sometimes puts it, there has been noise all around him. Chat rooms, Web threads, editors’ letter boxes and Dyson’s own e-mail queue resonate with a thermal current of invective in which Dyson has discovered himself variously described as “a pompous twit,” “a blowhard,” “a cesspool of misinformation,” “an old coot riding into the sunset” and, perhaps inevitably, “a mad scientist.”
Talis Connected Commons The Talis Connected Commons scheme is intended to directly support the publishing and reuse of Linked Data in the public domain by removing the costs associated with those activities. The scheme is intended to support a wide range of different forms of data publishing. For example scientific researchers seeking to share their research data
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