Originally posted by jrch2k8
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ZFS On Linux Lands TRIM Support Ahead Of ZOL 0.8
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I tried the git build on my SSD RAID 1 boot pool already and honestly there is no performance variation at all or any other perceivable change on the pool even the tool ran manually, so i guess this mostly use hardware acceleration for those block instead of just check and reuse like before.
i'll try later with a client RAIDZ2 system, maybe that system have I/O pressure enough to show a difference after a manual trim
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Originally posted by Vistaus View Post
Wait a sec, FreeBSD is moving to ZoL? Shouldn't they be moving to ZoB?
They are moving to become a part of the ZoL codebase because apparently some of the big names behind ZFS on Illumos (aka the "common Unix thing", which is supposedly an upstream for ZoL too but in practice it isn't that much) have announced they are migrating to Linux and ZoL for their own products.
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Originally posted by eydee View Post[...] so welcome to the party of sitting 10 minutes at a black screen just to get a chance to log in [...]
I've never been able to sit in front of a blank screen for 10 minutes.. I'm average/desktop user (no programming) and if 2 minutes has passed and the computer doesn't boot I usually think ''ok something funny software wise must have happened" or "there must be too dust on the graphic card it must be a random error (it's a 2013 Dell laptop I bought on eBay) and do an hard shutdown.
I wonder why distro didn't find a way to let the user choose when trimming is due or at least communicate to him/her: listen mate at the next boot I'm going to take a bit longer because of this and that.Last edited by horizonbrave; 30 March 2019, 08:58 PM.
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Originally posted by hreindl View Postdefrag is 1980s tech
encryption belongs to the LUKS layer
zfs has checksumming
you have no clue
In any case, I strongly disagree with the <feature> belongs to the <whatever> level. Btrfs and ZFS are the actual proof to the contrary - there is a lot to gain if you merge the levels judiciously. And I'd mush prefer native encryption rather than delegating it to a lower level. At the very least, I will save the CPU time for encrypting redundancy data.
Having said that, I am a huge fan of ZFS because I cannot trust the higher RAID levels in Btrfs. Also the SSD caching in ZFS (SLOG and L2ARC) is better than any generic lower-level caching (adding to the previous point). But it's OK to acknowledge the shortcomings of a system. Much better than to be blind about them.
* I read somewhere that defragmentation and filesystem shrinking were considered outside of the scope of an enterprise filesystem because if you value your data you'll have a backup and you can always recreate your filesystem with the size and disk configuration that you want and in an unfragmented state. I don't buy this kind of reasoning - Btrfs can do both and I've used both. It's amazing what Btrfs can do. And it has saved my data at least once. It's just not as good as ZFS for my current use case.
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