The Differentiated System Description Table is the main table in the ACPI part of a computer’s BIOS.
The Advanced Configuration and Power Interface (ACPI) defines a large number of tables that provide the interface between an ACPI-compliant operating system and system firmware. These allow description of system hardware in a platform-independent manner in ACPI Machine Language (AML).
via DSDT – OSx86.
As a result of the high clock rates used, PCI-Express devices can take a lot of power even when they are idle. “Active state power management” (ASPM) was developed as a means for putting those peripherals into a lower power state when it seems that there may be little need for them. ASPM can save power, but the usual tradeoff applies: a device which is in a reduced power state will not be immediately available for use. So, on systems where ASPM is in use, access to devices can sometimes take noticeably longer if those devices have been powered down. In some situations (usually those involving batteries) this tradeoff may be acceptable; in others it is not. So, like most power management mechanisms, ASPM can be turned on or off.
via PCIe, power management, and problematic BIOSes [LWN.net].
This might have something to do with the PCI ethernet card being shutdown on medusa — a problem which has only been resolved by not using the PCI eth slot on medusa’s motherboard.
Expanding the ability of Cisco networking tools to work with Hyper-V could help Microsoft make its case that its server virtualization software is a viable alternative to VMware. The analyst firm Gartner has praised the Hyper-V technology and said Microsoft has the advantage of providing management tools that are familiar to Windows administrations, but that it has struggled to convert large enterprise customers from VMware to Hyper-V.
via Cisco plans virtual switch for Hyper-V in Windows Server 8.
A team of researchers have devised a way to create an isolated and trusted environment on virtualized servers. Called the “Strongly Isolated Computing Environment” (SICE), the approach makes it possible to run sensitive computing processes alongside less secure workloads on the same physical hardware.
via Researchers create stealth virtual machine that can run alongside insecure VMs.
SPINE is a webbased Content Management System, implemented in Perl and released under the GPL (GNU Public License). It requires a Unix flavoured webserver, a database (postgresql or mysql), a default Apache installation and mod_perl. It features mixed static/dynamic content, separated template and content administration, granular privileges, userfriendly URLs, plugins, … Check the features page.
Hosting provider Rackspace, which currently owns the OpenStack trademark and copyrights, plans to transfer ownership of these resources to the not-for-profit foundation once it is operational.
Much like how the Linux Foundation provides a supporting structure for the largely independent development of the Linux kernel, so too will the OpenStack Foundation provide the support structure for the third-party development of OpenStack, the founders said.
This will list all your hard drives, allowing you to identify them. Next, type:
sudo blkid
via fsck.ext3: Bad magic number in super-block | prupert.
Also remember to mkfs to MAKE the filessystem before fsck ing it. This problem occurred while trying to bring the openfiler NAS up.
Update: Another useful command…
kpartx – Create device maps from partition tables
ZFS advantages over UFS:
raidz 1 or 2
Unlimited snapshots, clones, filesystems
pool bases storage…
self healing
Once you have GnomeBaker open, go to the Tools menu at the top and select “Burn CD Image” (or “Burn DVD Image” as appropriate). It will then prompt you for the ISO file and recorder device to use, as well as at what speed, etc.
via burning ISO files with Gnomebaker – FedoraForum.org.
Duh. It was right in front of me all along. For some reason Brasero keeps returning errors on burning a simple .iso file. It is consistent between reboots. This might be due to some weirdness with the motherboard on medusa and how the kernel deals with the SATA interface. I already noticed a problem with acpi messing with an ethernet PCI card on the only PCI slot on the motherboard. Something is not right with this hardware setup. The DVD player has also “gone offline” after trying to read error ridden Netflix DVDs. Something is causing it to go offline and it is either the linux kernel or the hardware accepting commands from low level windows drivers. This could also be a vm problem.
The bottom line: gnomebaker works and seems to work better. Gnomebaker deserves a link in the Tools category.
End-to-End IP Video. The Furnace™ IP video system provides a complete infrastructure for delivering secure video to every desktop and display within an organization. With the Furnace you can record any source, apply metadata, and deliver live or recorded content, or video on demand. The Furnace allows administrators granular control over the media within a facility and a harmonized experience for all users.
via Furnace — Haivision.