The opening was no surprise for me and neither is the fact that it got good reviews (I see stupid all the time)...

power consumption = terrible.

With all of that space in there, one could truly build a fairly decent "conditioner". Perhaps chuck a toroid isolation transformer on one side or mounted to the baseplate.

I have two of these, they are fairly well made, unlike some of the Furman garbage I've owned. The hospital grade models have more traditional outlets, which seem to be superior in clamping force.

mains through banana jacks... After being shocked through 240 a couple times.. just like holding a soldering iron by the hot end, even when powered off... something I would never do 😅

You got my subscription after: "... mouth hole on my face..." 17m57s --- Priceless 😂

Thanks for the great video. I've been considering one of these for a project. :)

Chinese junk Lithium Ion batteries with 1.5v buck converters built in. Buck converter fails, burns your house down or the very least, destroy your device... Just buy Eneloop Ni-MH AA's and be done with it.

Good video. Thanks for explaining the test setup. Have you seen XTAR batteries? I have use their chargers to test 18650 cells for capacity. I did notice a review showing the XTAR cells have RFI (radio interference) which is bad news. I use a lot of batteries around my radios so I keep looking. Oh did you test the batteries or cells here for RFI?

your show so salute, tip your fedora or what ever you like .. just keep up the interesting stuff! and thanks

Holy f**king thermal paste. Even the Verge has standards.

A couple of things I didn't get to in the video if anyone was curious: Noise was about 55dBA @ ~0.5m from the front of the chassis with the disks under full load (array consistency check). At idle it was 45dBA at the same measurement location. (Though one catch is that it was in a small and otherwise empty/echo-y closet, which probably made it measure louder than it would have been in some kind of proper acoustic chamber. Mainly I was concerned with relative measurements, so it served well for that.) It drew about 105W at idle without any HDDs, and ~235W at idle with all 18 HDDs installed. Under full disk load it was almost bang on 300W most of the time. To put the sound in perspective, the previous setup was about 66dbA. That was mostly due to the HP D2600 DAS that was perched on top of the old server. (I had spec'd the server itself to be super quiet. Didn't measure it independently, but it was much quieter than the Dell for sure.) But one important thing with sound levels: The D2600 fans ran faster and were of a much higher pitch and buzzier than those in the T640. So even with the disks working hard, the T640 "felt" far quieter than just that 11dB difference. It's more like a low "woosh", and not distracting or uncomfortable to be around... though of course that's fully down to personal preference/tolerance. I should be posting a follow-up soon, so you can see and hear what I mean.

Does anyone know how to make custom watch faces to these lokmat watches?

What a build!

Dude, im a little new to the channel here. What the heck are you doing that youll need 400 TB of drive space? Man oh man that's a ton of storage.

I testes here with my AA Eneloop pro (news): the registered mAh: 2550mah tested with Liitokala Lii-M4

User benchmark 64 core 32 core… Incredible

Awesome video, can this host a WordPress site?

You forgot power draw numbers, with and without drives. Also, dont salute w ur left hand. Nice video. Thanks.

Yep ... Pyle be like that.

(I am editing this as watching it) It’s really too bad There isn’t a raid 7 for software or hardware raid, i’m surprised that you didn’t use zfs or truenas core for z3 (there is a new os in development called hexos to make it far simpler to use truenas as I find it annoying to use) if you are using md raid it does support live replace so if the source drive is still functioning you can do a source and target for drive replacement it basically makes a raid6+raid1 mirror with the spare drive once miring is successful it removed the old drive (any uncorrectable read errors will be handled by the parity to correct them the rest of it is done as a straight mirror from the drive so all the other drives stay idle) zfs also has always supported live replace and is the recommended way if the old drive is still working When buying used dell make sure it has included idrac enterprise license (slightly annoying my 3 blade server I got extremely cheap only had basic so I lost remote access control after 90 days as it converts to basis after trial ends and the idrac key costs more then I paid for 3 dells) Also what I use for boot is pci-e 2x sata m.2 card that pull the power from the PCI bus and 2 sata cables from the card to plug into the motherboard sata ports (Most dell servers have at least two on board) use raid1 mirror boot Too bad we didn’t actually see the wait times because it looks like just from the front of the Dell machine drive lights (guessing 40% utilisation ) and It is running the rebuild on one thread because when it means 100 that’s 100% of one thread not every thread on the cpu (that will be like 800 assuming 8 threads available)

The constant swearing when I am trying to teach my kid about computers made me very angry having to tell her to go do something else. She doesn't need to hear this kind of language when being taught about computers and servers. very disappointed you kept throwing out the F bombs. Not acceptable by me. Not impressed at all. no need to be swearing.

for the T630/T640 I like using the MB998IP-B (icydock 8 bay 2.5'') and the D P/N 010WY power cable. the 18 bay chassis is a little short on 5.25 space, and comes with a one sata power cable. using the mutli-head power cable saves you needing a power splitter. and the 8-bay icydock has two 8643 mini-SAS connections which are FAR more convenient than using 6 or 8 (especially locking) SATA connectors in such a tight space. the T630 has SAS connectors on the motherboard. though the T640 has oculink, but can be adapted to SAS 8643 fine. (or pcie if you are exceedingly daring)

this not for home, this suited for small business. from my experience this kind of storage server is hot and very noisy almost like enterprise server class. you should has dedicated room with good air circulation and insulation.

二手还是很划算的

Thanks for the vid but please don't gatekeep seller's, it's a really bad look for others who would like to do a project like this or similar, it's really poor form.

Not really a fan of the mounting and how it was built but I respect the plan.

31:17 U really test the power supply with no output cap ?

LOL, Should have taken standard standoffs, and epoxied them to the case.

Hey, this is a fun time for a Thursday afternoon!

Could you do video on the scripts you use to do the backup. I use rsync for remote backup, but nothing fancy like you have.

you need to learn about zfs or brtfs and snapshots. it’s much more space efficient and will save you a lot of time.

Many people do not take the rebuild time risk into account. I have explained it many times, and often people are not even paying attention. People nowadays are more and more used to social media information overload and they just feel and react. It's funny because in the hard sciences, engineering and business, we used to look funny to the social science students deciding what is true because it "resonated with them" and today it's mainstream. Flash-based SSDs have a pretty bad write speed (out of cache) but can still perform many more IOPS. They are still expensive, but they already 15TB in the mainstream.

I’d definitely call those caddies. The things for CD’s back in the day we’d call cassettes.

New subscriber. Need a homelab tour.

😏👍 Very Nice, now fill it up 😊

The huge empty slot bay cover will be the basis for stuff like card readers to be added with a bezel change. I have an HP server with a similar feature. if you don't need the PCIE lanes or the cores. Taking out the second CPU will reduce your power bill. You are correct about the CPU 2 expansion slots. You need a second CPU to supply the PCIE lanes for them. A similar deal if you want to use all the RAM slots. A second CPU to use the slots for it.

Split it up into 2 x Raid 6 (z2) 8-wide HDD arrays, with a hot spare each. A single one of those arrays should just saturate a 10gbps nic.

Have you considered FreeBSD with ZFS?

You might wanna watch out with that sata power splitter for the boot drives, it looks like it's made using those molded sata plugs that are prone to shorting out and catching fire

Hi Scott, excellent video, thanks so much for sharing :) Two comments from my side: - Regarding snapshots, you could use btrfs with built-in snapshots (like on Synology). This way you get free data deduplication and still keep the snapshots principle going, to protect against malware. Data would only be "duplicated" in case of being overwritten by malware. - Not sure if it's an overkill, but I do new HDD burn-in with badblocks -wsv You can choose how many runs etc. Takes quite a long time, but gives good confidence imo. My two cents. Thanks again for the great video!

connected with gigabit and then you are going to move it? instead run a couple cables and make it 10g bonded but other wise plenty of space, nice setup

Wooo love tapes. I manage a LTO8 library that just touched 7PB.

How about 4x raid z1 with 2 hot spares? Is it even possible to use 1 or more hot spares to cover multiple vdevs?

I have shortness of breath, (Not Emphysema or even COPD level) from years of smoking, I quit and I bought boost to do a study to see if supplemental oxygen would increase my air during hard to breath days when lungs are congested and if it helps, I will nudge my physician to write a prescription for something I know tested and works to help me.

I've made back of the napkin calculation in "RAID Reliability Calculator" and the result is: Probability of data loss over time 1 year 0.0087209540046018 5 years 0.0428508234890534 10 years 0.0838654539044169 1) You shouldn't be greedy and allocate more drives for redundancy. 2) Normally, ZFS gurus do not recommend using more than 12 drives in a raid group. 3) Why not to use ZFS, especially for HDDs? RaidZ3 provides unmatchable reliability.

I believe that "Sleds" are just a plastic sliding tray with no electrical function like the 12v Hot Swap tray or Caddie. I've heard them referred to as either a Caddie or a SAS Drive Tray. but sleds are just a piece of plastic, which are in most desktop cases.

Nice video! Could you maybe link the ebay reseller?

Used to use rsnapshot for a similar strategy - pulling backups. Had good experience with it. That's a chunky server.

I think I got the same drives of the same seller - two of them were faulty. One DOA, the other one got bad sectors after my burn in test. I propose you test them. I recorded all the SMART data, put them into a ZFS mirror, filled them to the brink with F3, verified the data, scrubbed the disks and then did a long SMART test. I think that's the most thorough and viable approach.