Storage Insights #1 - Why Not All SD Cards are Created Equal

RE: Storage Insights #1 - Why Not All SD Cards are Created Equal

metaprog — Wed, 19 Jan 2022 15:39:55 GMT

I wonder if anyone managed to get Linux on Ultra96 working with UHS speed (write rates over 20Mb/s)? No use in higher speed SD cards if the write speed is limited by the interface.

RE: Storage Insights #1 - Why Not All SD Cards are Created Equal

drozwood90 — Fri, 15 Nov 2019 17:06:01 GMT

As a follow up, we have quite a few Articles in this series covering a variety of topics!

Here are links to all the blog posts if you are interested:

Storage Insights #2 - Optimizing your Storage Device

Storage Insights #3 -Technical Guide for CompactFlash (CF) and Secure Digital (SD) Cards

Storage Insights #4 - NAND Flash Based SSD Drives and the Flash Controller

Storage Insights #5- Guide to Embedded Multimedia Card (eMMC)

Storage Insights #6 - Guide to SATA (Serial ATA)

Storage Insights #7 - SD Card Technology Advantages

RE: Storage Insights #1 - Why Not All SD Cards are Created Equal

bhfletcher — Wed, 18 Jul 2018 17:25:21 GMT

Storage Insights #2 is now posted if you want to see the next article:

Storage Insights #2 - Optimizing your Storage Device

RE: Storage Insights #1 - Why Not All SD Cards are Created Equal

bhfletcher — Sat, 28 Apr 2018 00:01:58 GMT

We are using a Delkin MLC Utility 16GB card in the Ultra96 kit. The controlled Bill of Materials, longer life cycle, and increased P/E cycles and data retention were all factors in our decision. Also, I got a 128GB Utility MLC card from Delkin and can verify that it successfully booted my Ultra96. I have a 1GB FAT32 primary boot partition, 7GB EXT4 secondary boot partition, and 120GB EXT4 third partition. It booted up fine, and I was able to fill the remaining 120GB with test files.

This was the particular card that I used:

http://www.newark.com/delkin-devices/s41hapgac-u3000-3/memory-card-microsdxc-mlc-128gb/dp/37AC8603?st=delkin%20microSD

I also have a 64GB MLC Utility card that I will test next.

Bryan