[Discuss] SanDisk Extreme SSDs keep abruptly failing—firmware fix for only some promised | Ars Technica

[Rich Pieri]

On Fri, 26 May 2023 06:36:33 -0400
Bill Bogstad <bogstad at pobox.com> wrote:

> I decided to do a quick 'dd test' of my home-made USB attached m.2
> NVME drive and with a 1MB block size
> was able to get over 800MB/sec sequential read performance from the
> /dev/sda device.

I never suggested that I/O performance wouldn't be better. But the
startup sequence of a typical Linux system is more than just I/O
performance. When the init system needs to, for example, wait 60
seconds for the Ethernet interfaces to plumb before configuring and
starting network services? Or your kernel needs to allocate a hundred
GB of hugepages for your application? Ten times faster storage won't
matter much in overall startup times.

Or maybe I just misunderstood what you meant by, "see if booting from
the external SSD would be faster".

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