Mac NAS/Performance & Stuff

MacRS4

MacRS4

MacRS4

Soldato
Joined
15 Dec 2008
Posts
2,710
Location
London
A while ago there was some discussion on NAS (NAS's?) and around performance over 1Gbe/10Gbe etc. Anyway, something I'm working on includes some info that some of you nerds may find interesting. It's some performance testing/power consumption testing of a Synology DS923+ with 32GB RAM, 4 x Toshiba ENT 16TB Drives (SHR I think), 2 x Crucial P3 NVMe in a storage pool (you can't do this in the interface, you have to SSH in and do it) in RAID 0.

It's very nerdy, but includes some real test figures and some testing against encrypted folders, as well as tests over 1Gbe, 2.5Gbe and 10Gbe. Power estimates are based off 'my' usage model for my main work NAS that I use, however you can change the KwH costs and the layout of the usages.

Costs are retail however I didn't pay for any of this.

Anyway, the nerd sheet is here. I am aware it is dull aha. No real surprises in the performance really - 10Gbe is 10Gbe and decent on the spinners as well as the NVMe.

If you just want to see the perf figures, you can see those here.
Maybe some GiB/GB maths fudge going on at the minute, but it's broadly accurate. Pretty impressed with the unit - apart from it being awful for anything Plex related - no h/w video stuff (Quicksync?) I imagine being the problem there.
 
Teaming would help with multiple devices. So 2 x 1Gbe to the NAS - you could get a 110Mb/s from one device and 110Mb/s from another to/from the NAS. There's also multi-channel SMB that can take advantage of it assuming you also LACP your host machine, but I've never really had much success with mSMB in reality.
 
Looks like a great bit of kit. One of the things I've been pointing out for this piece of work I'm doing is they want to give a team of remote workers a 4 bay DS923+ with 16 or 18TB drives - I think if they need that amount of storage they'd be better off with more bays and smaller drives tbh.

The rebuild time on 16/18TB drives is long at >1 day for a drive replacement running at full throttle where pretty much you can't use the NAS. At medium rebuild times where you can use the NAS and get degraded performance they're running at 4+ days for a rebuild. A build of a dataset for them (it's physics stuff for a University) takes about a week to do - the time exposure is huge for a drive failure.

I'm not sure that's been considered tbh.

I'm less concerned for 'my' stuff as mine are mirrored to another 4 bay NAS and I can use either as live, and they're back off elsewhere for glacier store.

Perhaps over-thinking this. A lot of people seem to treat RAID as a backup. I'd not want to spend well over a day in suspense at what may or may not happen to my data aha.

As a side note I don't know what the data is - I'd love to know, but they won't/can't tell me beyond profile stuff for performance testing. Given the uni it's for I imagine it's space stuff.
 
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