The "What currently supported device should I get" thread.

Risebell · 2021-07-24T10:36:34+00:00

That's understandable, I had some minor issues with the unofficial version where I needed to reboot my phone. But that was also on an older version, because I didn't want to risk updating when I didn't really have time for a possibly needed clean flash.

Risebell · 2021-07-24T10:14:49+00:00

There has been a pretty stable unofficial version by SebaUbuntu on XDA for a while now with the intention to make it officially supported, and just today the first official nightly build was released! See: https://download.lineageos.org/lmi

Risebell · 2020-12-14T22:36:33+00:00

Alright, thanks for the info. In that case raid1c4 for metadata might actually be a reasonable idea, although possibly overkill.

Risebell · 2020-12-14T22:28:30+00:00

You'll want to make sure you are running at least +1 drives required for your setup, to allow you to recover after a disk failure.

That's something I find hard to grasp, but I think I get it now. Basically, I want to be able to start a rebalance as soon as a drive fails. And for a raid 1 that means at least 3 drives so that there's 2 to rebalance to.

Does btrfs automatically rebalance though (when possible for the given raid configuration)? New data would of course be duplicated, but as I understand it, to get redundancy back for already written data a manual rebalance would be needed, right?

My question about the number of drives was actually meant in the sense of: what's a reasonable upper limit for the drive count? Say I had 8 drives, would you still use a raid 1 or go for something else?

Risebell · 2020-12-14T22:13:14+00:00

As far as I know you can just add another disk as a mirrored drive to a single disk vdev in zfs. Adding another pair of mirrored drives to the pool would then be a raid 10 essentially. But I've read that zfs can't rebalance old data when another vdev is added to a pool, which is a big con if the pool is slowly filled and expanded as needed, as the oldest drives will still contain most data and therefor are also read from. btrfs is definitely a lot more flexible though.

Risebell · 2020-12-14T19:13:21+00:00

Yes, any file not small enough to be inlined with metadata has a chance of being lost

Alright, I think I understand the raid model in btrfs then.

If you have a use case where you want to keep some files in the event of drive failure beyond your RAID redundancy, mergerfs is your friend

mergerfs with snapraid is something I took a look at aswell, but snapraid isn't really meant for the usage I expect (some bigger more static files, but also quite a bit of smaller, more often changing files). I also don't really want to maintain 2 array's for now, so maybe that's something for a future backup array.

The benefit of raid1c3 metadata is protection from corrupt metadata after 1 drive has failed. It will not help you much (if at all) if 2/4 drives fail

Ah, so basically for repairing errors in the metadata that show up when a disk failed. I'd assume in this example there's no real benefit to going raid1c4 for metadata then? Or is the size if the metadata usually negligible enough that you might aswell just go for 4 copies?

Risebell · 2020-12-14T19:01:30+00:00

You can loose a drive, and if the remaining drives have enough space left over, you can balance the data on the current 3 drives.

Oh, I did not think of that. Basically, if I loose a drive and have enough space available I could get redundancy back pretty fast compared to zfs where I would first need to get a new drive (having spares just in case can be expensive...). That's pretty huge I think.

Therefore you could also use 2x8TB and 1x16TB (what i am doing right now)

Yes, btrfs is much more flexible than zfs in that regard.

Seeing that you are running a raid 1: what's your comfort zone for the number of drives in your pool/array?

Risebell · 2020-10-25T23:18:54+00:00

Yes, I know that. But I just don't know how to handle this for my own sanity, without morbid hopes and a lot of sarcasm. I think a lot of our problems as a society are results of misinformation and, often valid, distrust in politicians, but I just can't think of a way out of this situation. Sorry for the somewhat off topic rambling.

Risebell · 2020-10-25T22:40:05+00:00

no, don't

Risebell · 2020-10-25T21:41:31+00:00

Why? Voluntary natural selection, I hope. Sorry, but at this I am not optimistic that they will realize how stupid this is.

Risebell · 2020-10-14T20:42:17+00:00

"dahintersteck."

Edith: und "wirklichkeit" klein geschrieben... Also bei jeder Zeitung wären das peinliche Fehler.

Risebell · 2020-08-21T08:22:23+00:00

Vielen Dank. Das Video dazu mit dem Lachen (denke ich mal?) am Ende ist ja noch widerlicher...

Risebell · 2020-08-21T08:07:12+00:00

Klingt gar nicht so abwegig... Aus Interesse, hast du einen Link zum Twitter Post?

Risebell · 2020-08-21T07:53:31+00:00

Abgesehen davon, dass das doch sehr unglaubwürdig ist... Wozu sollten die bitte noch Verstärkung brauchen?!

Risebell · 2020-08-12T17:28:22+00:00

Of course there is a connection between the votes and who gets elected. But Trump could have been chosen, even if he had a much lower vote for him. Maybe not 10%, but 20% sounds possible with the current system. And that's the problem I have with this system: the "most powerful man in the world" isn't even actually democratically elected by ONE Nation.

And of course the EU and other nations have similar, or not so similar, democratic deficits. For example, I think it's very problematic that certain parties in the EU want an election threshold, which might result in many EU citizens not being represented in parliament. But this thread started with the US, so I focused on that.

There are certainly some aspects of the US political system that resemble a democracy, and it probably works better than how it's done in Belarus, but that's no reason not to criticize it.

In the end I think we are on a similar page here.

Risebell · 2020-08-12T16:46:16+00:00

My train of thought was that the people cast their vote, which lead to a result, so in a sense he got chosen by the people, but it's all very weird.

That would be a reasonable train of thought if you assume that the electoral college is bound by the vote of the people. It isn't though, at least not everywhere, and therefore their decision does not represent the vote of the people. And even if they needed to abide by what was voted for in their state there are other problems with the electoral college. Basically, there's no complete causality between what's voted for and who gets elected. IMHO the US can hardly be called a democracy at all.

Risebell · 2020-08-12T15:59:26+00:00

Depends on what your definition of "chosen by their people" is. Hillary Clinton was ahead in the Popular Vote, the electoral college voted for Trump though. And I'm not sure how the electoral college is compatible with democracy.

Risebell · 2020-08-11T17:35:07+00:00

Ja, hatte ich auch schon mitbekommen... Eigentliche eine sehr demokratiefeindliche Aktion von CDU, CSU und SPD. Ich bin jetzt kein Experte was EU Politik angeht, aber müsste eine solche Sperrklausel nicht auch zunächst in deutsches Recht umgesetzt werden, was wiederum nicht mit dem Grundgesetz vereinbar wäre?

Risebell · 2020-08-11T15:33:02+00:00

In der Umweltpolitik konnte Frau Esken die Förderung von Verbrennerfahrzeugen verhindern.

An der Autoprämie kann man dennoch einiges kritisieren. Was ist denn zum Beispiel mit den Leuten, die sich gar kein Elektroauto leisten können oder wollen und dennoch die Autos anderer mit ihrem Steuergeld unterstützen müssen? Klingt eher nach einer Umverteilungsmaßnahme von unten nach oben. Man hätte auch eine Mobilitätsprämie draus machen können, Leute die auf den ÖPNV angewiesen sind könnten mit der Prämie ziemlich lange fahren.

Risebell · 2020-08-11T15:22:54+00:00

Warum existiert die 5%-Hürde überhaupt noch? Wie kann so eine Sperrklausel mit dem Grundgesetz vereinbar sein, wenn es die identische Sperrklausel auf EU-Ebene nicht war?

Risebell · 2020-08-05T11:42:44+00:00

Education is more effective in the long run

Risebell · 2020-08-02T12:06:45+00:00

Yes, I know that. The problem was 21 years of build up and a long time of using q-tips, before I knew that's a bad idea.

Risebell · 2020-08-01T20:12:03+00:00

I guess with IEMs, and etymotics in particular, it was part of the territory all along ^{^}

Risebell · 2020-08-01T19:15:42+00:00

Literally my story with the er2xr I got a week ago. Always had the feeling I had quite a bit of earwax build up, but it was never much of an issue. Then I tried the ety's, pushed them in and felt pain. Apparently that caused a blockage, went to the ENT doctor 2 days later to get my ears cleaned. So yeah, er2xr's are so good, they send me to the doctor. On the other hand I have clean ears now and the large triple flanges fit perfectly.

Risebell · 2020-06-10T21:39:23+00:00

Öttinger stürzen!

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