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From: hiro <23hiro@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] Is fossil/venti file system a good choice for SSD?
Date: Sun,  4 Feb 2018 22:46:32 +0100	[thread overview]
Message-ID: <CAFSF3XNgyV00Cw1c9HZe2X2wFf9yArT+H9_6XTDW7uHc0J-GhQ@mail.gmail.com> (raw)
In-Reply-To: <CACo5X5jC4S-Q-BT-qaz4gQyeANEe6zAPLjSErQMHvpsqDn3Dfw@mail.gmail.com>

Hey, thanks for explaining. this usage is surprisingly valid. I have
some much much older kirkwoods for the same scenario. The benefit is:
gigabit ethernet, higher stability, case included, power supply
included (and no power problems as on rpi), lower price.
I boot them all from USB HDDs, but I see how flash would save more
power. Carry on! :)

The main disagreement in this thread is calling all kinds of different
flash storage "SSD". common usage reserves this name for the sata or
more recent nvme disks that actually are much more stable, in my
understanding due to better controllers and their better wear leveling
algorithms.

With sd cards and usb flash drives you are lucky if your 128GB stick
is not really 1GB flash with %1GB "wear leveling algorithm" where
after 1GB you rewrite your already saved data :D

It's a low-end market with shitty margins, low quality controllers,
and in general too many counterfeits, even from good shops and big
retailers. so you can't even depend on the company/brand/product name.

Privately I never had surprising problems with HDDs, I don't manage to
fill enough to notice the small risk in practice.

All my old HDDs still work. They are only unused cause they got too
small to be worth spinning any more (waste of power).

I project my SSDs will not fail before i get 10/40gbit connection to
my NAS. Till then my write wear will be limited by my low bandwidth
and high latency practical use cases.

On 2/4/18, Digby R.S. Tarvin <digbyt42@gmail.com> wrote:
> static web pages, remote login (so that I can power/depower other hardware)
> and file remote file distribution (via scp) mostly.
>
> The main requirement is very low standby power consumption so that it can
> survive on batteries which are recharged using solar panels.
>
> Power consumption was the main reason for switching from laptops (~12W) to
> Reaspberry Pis (1.2W)..
>
> The other advantage to the raspberry pi is that it is a cheap commodity
> item - if I have one misbehave, I can just swap it out and throw it away.
> However, other than failing SSD's, the raspberry Pis have proved very
> reliable.
>
> On 4 February 2018 at 09:52, hiro <23hiro@gmail.com> wrote:
>
>> > raspberry pi based servers
>>
>> what are you serving?
>>
>>
>



  reply	other threads:[~2018-02-04 21:46 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-03  9:39 lchg
2018-02-03 10:54 ` Ethan Grammatikidis
2018-02-03 12:45 ` Steve Simon
2018-02-03 13:25   ` hiro
2018-02-03 14:53     ` Steve Simon
2018-02-03 16:53       ` hiro
2018-02-03 18:49         ` Digby R.S. Tarvin
2018-02-03 20:10           ` Bakul Shah
2018-02-03 21:46             ` Digby R.S. Tarvin
2018-02-03 23:46               ` Bakul Shah
2018-02-04  9:45                 ` [9fans] RasPi why? Ethan Grammatikidis
2018-02-04 15:05                   ` Rui Carmo
2018-02-04 16:36                   ` Steve Simon
2018-02-04 21:00                   ` Lyndon Nerenberg
2018-02-04 21:55                   ` Bakul Shah
2018-02-04 22:23                     ` hiro
2018-02-04 23:46                   ` Skip Tavakkolian
2018-02-04 23:52                     ` Lyndon Nerenberg
2018-02-05  9:22                     ` hiro
2018-02-05  9:27                       ` Rui Carmo
2018-02-05  9:48                         ` hiro
2018-02-05  9:49                           ` hiro
2018-02-04 10:02                 ` [9fans] Is fossil/venti file system a good choice for SSD? hiro
2018-02-04 23:46                   ` Bakul Shah
2018-02-05  8:50                     ` hiro
2018-02-04  9:52               ` hiro
2018-02-04 16:15                 ` Digby R.S. Tarvin
2018-02-04 21:46                   ` hiro [this message]
2018-02-04 22:47                     ` Digby R.S. Tarvin
2018-02-05  9:54                       ` hiro
2018-02-04  9:49           ` hiro
2018-02-04 22:22 ` Ole-Hjalmar Kristensen

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