Warning! Don't create pools with the UI if you intend to keep the data.

[Patrick M. Hausen]

Hi all,

TrueNAS core creates pools with ashift=9 which is clearly unusable on modern hard disks and cannot be changed after the fact. Yes, it's a test release, you are not supposed to put valuable data on it ...

But if you intend to continuously use a system and put it to production use once we have a -BETA or -RELEASE, I advise you not to create new pools unless you use the command line ...

There is at least one open issue so I did not create a new one:

https://jira.ixsystems.com/browse/NAS-105043

You will also find how to adjust that parameter at pool creation time. The well-known FreeBSD sysctl does not work, anymore.

Kind regards,
Patrick

 

[Yorick]

That issue is closed, PR came in March 5th. If this is still an issue, best to pile onto the closed one or open a new one.

 

[Patrick M. Hausen]

It is with the last nightly from yesterday. Just installing today's one, now ...

 

[Patrick M. Hausen]

The issue I cited is closed, but has an "affects version" of 12.0-ALPHA1. If there's one thing I do not understand about ixSystems' JIRA is what gets merged into which branch. But then I am not a full-time developer ;)

I just tried again with the last nightly and opened a new bug issue:

https://jira.ixsystems.com/browse/NAS-105776

Kind regards,
Patrick