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4k HDD Partition Alignment Primer

Although HDD storage densities have increased dramatically over the years, one of the most elemental aspects of hard disk drive design, the logical block format size known as a sector, has remained constant. Beginning in late 2009, accelerating in 2010 and hitting mainstream in 2011, all major manufacturers are migrating away from the legacy sector size of 512 bytes to a larger, more efficient sector size of 4096 bytes, generally referred to as 4k or AF (Advanced Format).

Another ARA-2000 rebuild and LNA approach

It's always rewarding to see that distributing and sharing open knowledge & tools ultimately leads to much more individual empowerment and faster technological evolution/innovation than “protection” of “Intellectual Property” ever could: OK3ZB copied and used the AWRA-Cutting-Helper, did a successful rebuild of the Active-Wideband-Receiving-Antenna and came up with a new LNA approach:

D-Link "green-ethernet" switch Review

Labeling things with the term “green” has become quite popular these days. While evaluating unmanaged SOHO Gigabit-Ethernet switches for Apollo's core net-infrastructure, a lot of “green” switches turned up. After sifting through numerous datasheets D-Link's DGS-1008D seemed to be the top choice when power consumption is an issue.

HOWTO: Test and merge github pull-requests locally

Today, another pull-request flew in, enhancing the picoReflow software stack with MAX6675 compatibility. Git and github are great tools for open collaboration but it takes some time to get used to them. Of course, the github auto-merge feature is great and works pretty reliable, but I still prefer to review and test PR's locally on the commandline, before actually merging them.

Review: Managed Low-Power Switch DGS-1100-8

In a past Mission-Log, we've reviewed the power consumption of "green" Ethernet Switches (consumer-grade/unmanaged) that could be used in off-grid environments and they performed really well. Compliant with IEEE 802.3az Energy Efficient Ethernet, these switches consume less energy by cutting down on power consumption when the traffic volume is low and automatically measure the length of the connected cables to adjust power usage, when cables are shorter than 20 meters. In addition, they monitor …