How much performance? Do you have a sizing guide? For example 100 MB for every TB of data in pool? I am definitely doing this, but I want to find out as much as I can first because it sounds like there is no turning back.
How much performance? Do you have a sizing guide? For example 100 MB for every TB of data in pool? I am definitely doing this, but I want to find out as much as I can first because it sounds like there is no turning back.
It's probably more linked to the amount of data in the pool, not the raw size. RAID-Z will require more metadata than Mirrors.I have 10tb using 32kb block size. my special vdev uses 42.5gb space. Another server has 21.8T using 64k block size, it uses 44.7G of meta space.
Block size matters alot.
Massive number of small files in the system at work. I would probably need 3 to 4 TB of SSD.1% for large files/record sizes and 10% for small files/record sizes.
Four drives in mirrored pairs should work, do you think? ... I am sure I can wedge that into the server, but I will need to remove the L2ARC to make room for it. I don't think the L2ARC is as useful as this might be. What is your take on that?I'd recommend high performance 1.6TB SSDs
I will share the information I can gather to help. I will put together a test rig as soon as I can reallocate existing hardware for it and I expect to implement this in the production server once I have done some testing.this is early in the release process and so we are still gathering practical data.
Massive number of small files in the system at work. I would probably need 3 to 4 TB of SSD.
Four drives in mirrored pairs should work, do you think? ... I am sure I can wedge that into the server, but I will need to remove the L2ARC to make room for it. I don't think the L2ARC is as useful as this might be. What is your take on that?
I will share the information I can gather to help. I will put together a test rig as soon as I can reallocate existing hardware for it and I expect to implement this in the production server once I have done some testing.
To get the metadata shifted to the SSD vdev, do I need to write the data again in a different part of the pool? I am trying to figure out what the minimum action would be because the production server at work has around 250TB of data and I think it might be difficult to get that much data moving.
what version are you upgrading from?Hi -
Is there a Freenas to Truenas upgrade guide?
I've been waiting on the sidelines for the official release and don't follow these forums regularly. I did a search of the forums and was unable to find anything. I have had problems with frankly disastrous upgrades in the past. I would like to know if there is anything special about installing this update versus prior Freenas upgrades. I have read about problems with jails and VMs but I can't find any definitive writeup.
Thank you,
Dean
by the way - whoever runs the forum - don't you think calling a user who has had FreeNas up and running since 2012 a neophyte is just a little insulting. :) Really. I don't post unless I need to.
I am currently on 11.2-U8-1. And when I look at the update trains there is an 11.3 Stable and a 12.1 nightlies. I don't even see the Truenas update train in the list.what version are you upgrading from?
I would suggest first upgrade to 11.3 Stable before jumping to TrueNAS 12 stable release Just to be safe.I am currently on 11.2-U8-1. And when I look at the update trains there is an 11.3 Stable and a 12.1 nightlies. I don't even see the Truenas update train in the list.
Thank you. Upgrade to 11.3 Stable went fine - everything is working. The TrueNas 12 stable release is now available.I would suggest first upgrade to 11.3 Stable before jumping to TrueNAS 12 stable release Just to be safe.
Take a look at the release notes https://www.truenas.com/docs/hub/intro/release-notes/tn-12_0-release/ and read the forum postings. My two upgrades had no show-stoppers, most others seem to have been uneventful from what I can tell from the postings. There's a minor annoyance with the GUI but it's easy to get around https://www.truenas.com/community/threads/12-release-reports-broken-possible-work-around.88130/Back to my first question - is there a Freenas to TrueNas upgrade - or is it not needed / nothing to worry about?
To be able to answer that question accurately and in detail we would need to know more about what aspects of the system you are using. (Jails, VMs, Time Machine to name a few)Back to my first question - is there a Freenas to TrueNas upgrade - or is it not needed / nothing to worry about?
Thank you. Upgrade to 11.3 Stable went fine - everything is working. The TrueNas 12 stable release is now available.
Back to my first question - is there a Freenas to TrueNas upgrade - or is it not needed / nothing to worry about?
Thank you,
Dean
Hi Dean, After 12 years you definitely aren't a neophyte. We should review our forum software and its settings.
The upgrade from 11.3 to 12.0 is generally straightforward... the transition from FreeNAS to TrueNAS CORE is a name change.
TrueNAS 12.0 does include some ZFS changes... don't change the ZFS pool settings until after the upgrade has been successful. That will allow you to roll back if needed. There will be more data on update issues in the next month... so, if you don't need any specific features, you might be advised to wait. Morgan
Yes, upgrading a pool is the better terminology.. https://www.truenas.com/docs/hub/tasks/advanced/upgrading-pool/When you refer to ZFS pool settings do you mean "Upgrading a ZFS Pool" or something else?
I upgraded my ZFS pool while i am at 11.3-U5 stable and no planning to go back and now planning to move forward to TrueNAS 12 Release. Now from this scenario I can upgrade to TrueNAS 12 and also be able to go back to 11.3 U5 in case i needed too right or can't?Yes, upgrading a pool is the better terminology.. https://www.truenas.com/docs/hub/tasks/advanced/upgrading-pool/
Yes, you can roll back ... if you don't upgrade the pool.I upgraded my ZFS pool while i am at 11.3-U5 stable and no planning to go back and now planning to move forward to TrueNAS 12 Release. Now from this scenario I can upgrade to TrueNAS 12 and also be able to go back to 11.3 U5 in case i needed too right or can't?
zpool status -v freenas-boot pool: freenas-boot state: ONLINE status: Some supported features are not enabled on the pool. The pool can still be used, but some features are unavailable. action: Enable all features using 'zpool upgrade'. Once this is done, the pool may no longer be accessible by software that does not support the features. See zpool-features(5) for details. scan: scrub repaired 0B in 00:01:01 with 0 errors on Mon Oct 19 03:46:01 2020 config: NAME STATE READ WRITE CKSUM freenas-boot ONLINE 0 0 0 ada0p2 ONLINE 0 0 0 errors: No known data errors