Reddit reviews 10 PACK - SanDisk 8GB MicroSD HC Memory Card SDSDQAB-008G (Bulk Packaging) LOT OF 10 with SD Adapter and USB 2.0 MicoSD
We found 1 Reddit comments about 10 PACK - SanDisk 8GB MicroSD HC Memory Card SDSDQAB-008G (Bulk Packaging) LOT OF 10 with SD Adapter and USB 2.0 MicoSD. Here are the top ones, ranked by their Reddit score.
SanDisk 8GB Class 4 UHS-1 MicroSD HC Memory CardBulk packed in case (1 case per memory card)SanDisk MicroSD to SD Adapter includedListing includes: 10x Memory Card, 10x SD Adapter, 10x plastic case, 1x Card Reader
Class 10 but it does not really matter. Once you run them 24/7 for 12 weeks, they get physically corrupted on the block. Not fun (you throw them away). I got the good ones, a combination of samsung, memorex, sony, patriot, they all fail at some point. I would highly recommend to create a usb mounting point like so: https://www.raspberrypi.org/blog/pi-3-booting-part-i-usb-mass-storage-boot/
You don't build such cluster to achieve anything but learning. You stretch every aspect of this cluster design (power, eth0, throughput, writing on the card, interface, everything) and you will definitely have so "gotcha" moment as you troubleshoot along the way. Highly recommend. Building a 5 nodes cluster is better than 3. Nine nodes are overkill but still fun.
If I had to redo it all over the gain, I would get a 4gb pack:
https://www.amazon.com/10-PACK-SanDisk-SDSDQAB-008G-Packaging/dp/B00MHZ70KO/ref=sr_1_6?ie=UTF8&qid=1481181417&sr=8-6&keywords=8gb+micro+sd+card+pack
and x9
https://www.amazon.com/Samsung-METAL-Flash-MUF-32BA-AM/dp/B013CCTM2E/ref=sr_1_fkmr2_2?ie=UTF8&qid=1481181453&sr=8-2-fkmr2&keywords=usb%2Bkey%2Bsamsung%2Busb3&th=1
I believe I will be able to get a 2mb/sec sustain throughput on Spark with this sort of setup, not sure, possibly more. Got to try. Why the usb3? I image these on the laptop so it is much faster than USB2. If not, a USB2 keys will suffice. More than 32gb of storage per node is useless.
FUCKYOUINYOURFACE is right, even with this setup, it is a slow as shit cluster, but you absolutely control this environment in every dimensions you can think of. And that is awesome in my book.