I recently added a mirror to a very simple zfs pool and decided to document it here for posterity. This worked flawlessly in a FreeNAS 10 system with two 4 TB drives.
Apple Photos isn’t the best application to manage a large digital photo library, but the integration with iCloud, iOS, and macOS is extremely useful. But even though Photos can process and store raw images, it is severely lacking in terms of library managemen. I have developed a workflow to remove raw images from Apple Photos and iCloud and thought I’d share it. Hopefully Apple will do better in future releases.
I was recently given an old HP MediaSmart EX470 server along with some other junk hardware. Although it has no graphics, a slow single-core AMD Sempron CPU, and just 512 MB of RAM, I was able to revive it quite satisfactorily. Here’s how I upgraded the hardware and software.
It’s an easy decision: Get a free ProtonMail account and use that as your verification address for important financial and social media accounts. Keep using whatever email account you like for regular communication, but don’t mix security and communication!
ZFS should have been great, but I kind of hate it: ZFS seems to be trapped in the past, before it was sidelined it as the cool storage project of choice; it’s inflexible; it lacks modern flash integration; and it’s not directly supported by most operating systems. But I put all my valuable data on ZFS because it simply offers the best level of data protection in a small office/home office (SOHO) environment. Here’s why.
I’ve been thinking a lot lately about microprocessors, from the many-core CPUs that AMD and Intel introduced recently to the massively scalable GPGPU processing that’s taking machine learning by storm. After years of consolidation on commodity x86 CPUs, it seems that the computing paradigm is turning again to specialized offload processors. This trend towards heterogeneous computing will change the face of hardware, from mobile devices to the datacenter.
With the advent of AMD Threadripper and Epyc, we are about to see an explosion of PCIe lanes in the pro-sumer and datacenter market. Although many of those lanes will be taken up by conventional PCIe cards, some will be used for SSD’s (M.2 and U.2) or for external connectivity. This is where OCuLink might finally take off: As an AMD alternative to Thunderbolt for external PCIe peripheral connectivity.
From iCloud Photos to Google Drive to NetApp and Primary Data, we’re putting storage wherever it needs to be. And this is a major shift for computing, from the iPhone to the datacenter. Watch this space!
General-purpose GPU computing has been on the rise for years, from OpenCL and CUDA to machine learning and self-driving cars. But cryptocurrency mining has exploded in 2017, draining the market of AMD’s latest graphics cards as mining rigs pop up from basements to warehouses all over the world. The strength of Bitcoin in international finance suggests that Ethereum, Zcash, and others “altcoins” will find their own niches. We are seeing the emergence of a new computing category.
Hard disk drives encounter errors from time to time, so it’s a good thing that most have the ability to recover data anyway. But RAID systems usually have their own error recovery capabilities and can be thrown off when a hard disk pauses I/O. So it’s a good idea to use hard disk drives that allow you to disable or limit error recovery in RAID systems.