Raspberry Pi 400 Desktop PC

Re:Raspberry Pi 400 Desktop PC by ThrowawayR2 on Monday November 02, 2020 @10:37AM (#24969220)

microSD cards don't really cut it for a general-purpose desktop in terms of lifespan and reliability and SSD over USB is an awkward workaround at best. Hopefully the RPi 5 will have NVMe or a SATA port at least.

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Re:Raspberry Pi 400 Desktop PC by m0dest on Tuesday November 03, 2020 @12:03AM (#24976500)

Agree; from my experience with Pi SD cards, it’s straight-up irresponsible to recommend that anyone use an SD card with the Pi for their main computer.

Every Pi SD card has ended in irreparable disk corruption. The SD hardware’s wear-leveling and delayed allocation is fundamentally incompatible with any device without a battery, especially with frequent writes.

The “official” solution for the Pi is to use read-only SD cards with overlayfs. That’s not the default and it’s not how entry-level users will use this.

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Re:Raspberry Pi 400 Desktop PC by seg_lol on Monday November 02, 2020 @11:37AM (#24969955)

I believe a CM4 module could fit in the same space. They were probably developed in parallel, so they couldn't afford to gate the Pi 400 on the CM4 timelines.

Also, don't under estimate the performance of future SD cards.

v0, get it shipped

v1, improve

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Re:Raspberry Pi 400 Desktop PC by Drdrdrq on Monday November 02, 2020 @01:01PM (#24970983)

The issue with SD cards is not performance, it is longevity. I threw away more SD cards than I care to admit. :-/

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Re:Raspberry Pi 400 Desktop PC by seg_lol on Monday November 02, 2020 @03:14PM (#24972648)

What is your experience with the DVR series of SD cards?

https://carcamcentral.com/guide/recommended-microsd-cards-fo...

I know there are other power down issues with SD cards and corruption well. I think in a class setting I would have important files replicated to an NFS server, with at least hourly snapshots.

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Re:Raspberry Pi 400 Desktop PC by throwaheyy on Monday November 02, 2020 @10:06PM (#24975934)

I’m surprised there isn’t a market solution for long-life (SSD lifespan) SD cards. SD card is just a physical/electrical interface, couldn’t manufacturers put more resilient flash circuitry inside?

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Re:Raspberry Pi 400 Desktop PC by ThrowawayR2 on Tuesday November 03, 2020 @12:09PM (#24981526)

Specialized industrial use SLC microSD cards exist (e.g. https://www.avnet.com/shop/us/products/sandisk/sdsdqed-064g-...) but they cost a lot and have smaller capacities because they use SLC.

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Re:Raspberry Pi 400 Desktop PC by TaylorAlexander on Monday November 02, 2020 @04:18PM (#24973492)

Integrated would be cleaner but I’ve found it to be quite simple to boot off of a USB3 drive on the Pi4.

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