this post was submitted on 28 Jul 2023
15 points (100.0% liked)

datahoarder

6757 readers
1 users here now

Who are we?

We are digital librarians. Among us are represented the various reasons to keep data -- legal requirements, competitive requirements, uncertainty of permanence of cloud services, distaste for transmitting your data externally (e.g. government or corporate espionage), cultural and familial archivists, internet collapse preppers, and people who do it themselves so they're sure it's done right. Everyone has their reasons for curating the data they have decided to keep (either forever or For A Damn Long Time). Along the way we have sought out like-minded individuals to exchange strategies, war stories, and cautionary tales of failures.

We are one. We are legion. And we're trying really hard not to forget.

-- 5-4-3-2-1-bang from this thread

founded 4 years ago
MODERATORS
 

I want to build a truenas server with the cheapest CPU I can find that can support ECC RAM: Celeron G4900T + 64gb ECC RAM + 4x18 TB SAS drives.

I don't have experience with ZFS or with truenas (core or scale), how much important is the CPU?

Use case: hundreds of thousands of small files mostly under 1 mb, but just 2-3 concurrent users

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 3 points 1 year ago (1 children)

You don't mention your performance requirements and I'm unfamiliar with that CPU. Are you trying to saturate your 1G presumably NIC? Reads or writes?

[–] [email protected] 1 points 1 year ago (2 children)

No, just thousands of small files. Windows takes around a minute to enumerate all the files in the main share via SMB

[–] [email protected] 2 points 1 year ago

@Moonrise2473
That looks more like ARC problem, it can hold a large index of the filesystem if you give it enough room in ram, avoiding the need to seek thousands of files on a spinning disk, which takes time. HDDs are fine for sequential operations, Random IO, which is your usecase, is their biggest weakness.
@eleitl

[–] [email protected] 1 points 1 year ago

You should be good, then. Probably don't need SSDs for ZIL and L2RC either. Don't forget to schedule a weekly scrub, to catch bit rot. Essential for large drives.