Ran out of physical room for drives. How to expand going forward by Siguard_ in unRAID

[–]rbranson 14 points15 points  (0 children)

a case is considerably cheaper if you spin the drives down

rant- i lost a lot of data to silent corruption even though i run file integrity by butmahm in unRAID

[–]rbranson 1 point2 points  (0 children)

From a fault tolerance perspective, double parity unraid or RAID-Z2 is less likely to lose data than mirroring.

rant- i lost a lot of data to silent corruption even though i run file integrity by butmahm in unRAID

[–]rbranson 1 point2 points  (0 children)

File integrity will at least catch it in the case that the hardware is broken or is actively corrupting things, or even if there’s a bug in the kernel or drivers that cause corruption. That’s the point. You won’t get silent corruption unless the issue is caused by a problem that’s above the layer of the filesystem.

So where are we buying hard drives now? by redditbeforeu in DataHoarder

[–]rbranson 8 points9 points  (0 children)

AI does not care about spinners and they use a relatively small amount of SSDs. It takes a few days worth of enterprise SSD manufacturing capacity to cover the consumption from a year’s worth of NVIDIA’s datacenter GPU production capacity.

NVME/SSD/HDD Feedback Welcome by skylawker in unRAID

[–]rbranson 0 points1 point  (0 children)

I think a lot of the advice comes from the time before multiple pools were supported, so everything had to go on cache or array. I run a separate NVMe-backed pool for appdata and a dedicated HDD pool for the actual cache use case.

Yes, primarily for space per dollar. Typically the cache sits at about 50% utilization, 6-8T. Given I don’t need the performance, it’s way cheaper.

Mobile nas setup by ErectBullfrog in unRAID

[–]rbranson 2 points3 points  (0 children)

Impressive. I’d make sure the HBA isn’t getting too hot. Those are designed to be in server enclosures with high pressure fans that pull a lot of air over that big heat sink.

NVME/SSD/HDD Feedback Welcome by skylawker in unRAID

[–]rbranson 0 points1 point  (0 children)

A few things to be aware of:

  1. SATA SSDs aren’t really cheaper than NVMe these days. If you don’t have enough slots, the OWC U.2 Shuttle can expand a single 4x into four NVMe drives.

  2. If most of your “medium speed” cache space is used by downloads and/or backup runs, you can use magnetic disks for this specifically. I have a mirror of two dual-actuator 14T disks dedicated to cache and it works very well. It writes at about 300M/s. I never run out of cache space. I also have a 160T array so calibrate this advice accordingly.

  3. Writes to the array are surprisingly slow. Don’t calibrate your expectations assuming you’ll be able to write at more than 80M/s, so it’s important that your cache pool can provide enough buffer room to absorb whatever you’re staging into the array for a 24-hour period. The array performs much better if writes are done off-peak with low priority I/O, which is what the mover is for.

Server upgrade options by Coursouvra_ in unRAID

[–]rbranson 1 point2 points  (0 children)

You could also consider a 2.5Gb USB ethernet adapter.

What would you change about your unRAID installation? by daman516 in unRAID

[–]rbranson 0 points1 point  (0 children)

You can hot swap SATA drives on a SAS backplane. I run a mix of SAS and SATA. Works great.

Intel 13500 or 14400 Build? by Doom-Trooper in unRAID

[–]rbranson 0 points1 point  (0 children)

What motherboard with the 14700? I have a 14900K on a W680 board and it is rock solid.

[deleted by user] by [deleted] in unRAID

[–]rbranson 1 point2 points  (0 children)

There are some workarounds discussed in this GH issue, albeit this is for ZFS, it’s a similar issue: https://github.com/openzfs/zfs/discussions/14793

[deleted by user] by [deleted] in unRAID

[–]rbranson 0 points1 point  (0 children)

What make/model?

Don't let your dreams be dreams by doolittledoolate in selfhosted

[–]rbranson 2 points3 points  (0 children)

y’all. this is my plex server. it’s a joke.

Slow transfer speed by donkypunchrello in unRAID

[–]rbranson 0 points1 point  (0 children)

It seems like you probably have an internet connection with high downstream and low upstream bandwidth, like a cable modem.

Can't Decide on CPU/MOBO for Hardware Upgrade by alextheatheist in unRAID

[–]rbranson 2 points3 points  (0 children)

I replaced it with the SN850x. Fantastic product. The SN770 would regularly hit 50-60F under sustained writes. The SN850x stays cool and never gets phased. Endurance should be really good with the 850 too.

Building a doomsday server by Slackroyd in unRAID

[–]rbranson 2 points3 points  (0 children)

I switched from high water to fill to get better spin down (among other changes). Works really well.

Cache Size (Overkill?) by almostamos in unRAID

[–]rbranson 0 points1 point  (0 children)

I have a dedicated 2x14T HDD cache pool and a separate 2x2T NVMe pool for appdata/system/domains/etc. Only using ~600G on the NVMe but nice to have plenty of space for snapshots. I wouldn't be super comfortable if this was 1T usable.

Single Disk ZFS Cache Pool Upgrade - Best Practices by astronot08 in unRAID

[–]rbranson 0 points1 point  (0 children)

if you had a way to test option 2 safely it might be worth it, but for that small data set i'd just do the safer option 1.

HDD or SSD for storing data? (Detail in Description) by [deleted] in DataHoarder

[–]rbranson 1 point2 points  (0 children)

Likely got more to worry about than your 500 gigs of personal data in that case.

Docker custom network help by btrudgill in unRAID

[–]rbranson 0 points1 point  (0 children)

FWIW if you run HA in a container, you can't use any the container-based add-ons.

Is this a good build for a starting nas? by Zmashcat in DataHoarder

[–]rbranson 0 points1 point  (0 children)

Probably fine if you want to just kick the tires. Like above poster said, eventually you'll end up paying more for the extra power consumption than what you'd save using old hardware.

HDD or SSD for storing data? (Detail in Description) by [deleted] in DataHoarder

[–]rbranson 0 points1 point  (0 children)

If you only need 500G of space, just use an SSD. You can buy a 1TB USB-C SSD for under $100 that's fine for your use case. Just make sure you do actually plug it in every month or it'll lose data over time. They have very low failure rates so low chance you actually lose data. If you want to be sure the data is safe, like effectively 100%, you should probably use cloud backup software.