Reddit Reddit reviews Seagate SATA 6Gb/s 3.5-Inch 4TB Desktop HDD (ST4000DM000)

We found 45 Reddit comments about Seagate SATA 6Gb/s 3.5-Inch 4TB Desktop HDD (ST4000DM000). Here are the top ones, ranked by their Reddit score.

Electronics
Computers & Accessories
Internal Hard Drives
Data Storage
Seagate SATA 6Gb/s 3.5-Inch 4TB Desktop HDD (ST4000DM000)
Ideal for everyday desktop and computing storage4TB capacity stores 480 HD video, or 800,000 photos, or 1,000,000 songs5900 RPMStore data faster with SATA 6GB/s interface2 year warranty. 64MB cache
Check price on Amazon

45 Reddit comments about Seagate SATA 6Gb/s 3.5-Inch 4TB Desktop HDD (ST4000DM000):

u/sequentious · 42 pointsr/DataHoarder

Ordered two of this drive on amazon. Came floating freely in the box. Could hear them banging into each other.

On the bright side, Amazon's return process is easy.

u/CyberSoldier8 · 11 pointsr/LifeProTips

I mean, not really.

https://www.amazon.com/dp/B00B99JU4S/ref=twister_B00BFR79HE?_encoding=UTF8&psc=1

A 4 TB drive costs as much as two years of service. $50 a year for cloud storage like that isn't that bad, though me being the technically inclined type, I'd rather have it stored locally.

u/CVUnknown · 7 pointsr/buildapcsales

It is most likely this one: Seagate Desktop 3 TB HDD SATA 6 Gb/s NCQ 64MB Cache 7200 RPM 3.5-Inch Internal Bare Drive ST3000DM001


Based off this review from Amazon.

Edit: But it might share the same RPM as the 4TB variant. Again, I could be totally wrong in this regard.

u/ranhalt · 7 pointsr/DataHoarder

For as reliable as they are, the price is worth it. I have 8 of them in my Drobo b800fs. 5 years of using 3 different Drobos, never had a drive fail on me.

http://www.amazon.com/Seagate-Desktop-ST4000DM000-3-5-Inch-Internal/dp/B00B99JU4S

u/Nyxian · 7 pointsr/Futurology

2007 Q1 - $400 1TB HDD (7K1000)

2014 Q1 - $150 4TB HDD (Seagate)

Price per GB:

.40 cents per GB to .0375 cents per GB, in 7 years.

7 years, or 84 months resulted in a 10.66fold decrease in cost per GB.

Moore's law actually holds pretty true between the time period of 2007 and 2014.

u/bencmeyer · 5 pointsr/DataHoarder

Is it true these are Seagate drives shoved into a Samsung enclosure?

edit: It appears the drive inside these are the Seagate ST4000DM000;
http://amzn.com/B00B99JU4S

u/Thorbinator · 5 pointsr/Bitcoin

Transactions per block average: 575
Block size in mb average: .3181

1,000,000/575 = 1739.13x larger network
1739.13 x .3181 = 553.2 Mb per block, 3.3 gigs an hour, ~80 Gb/day


https://blockchain.info/charts/n-transactions-per-block?showDataPoints=false&timespan=&show_header=true&daysAverageString=7&scale=0&address=

https://blockchain.info/charts/avg-block-size?showDataPoints=false&timespan=&show_header=true&daysAverageString=7&scale=0&address=


more math: this drive is $140 for 4tb. At 100k tx/min, that drive fills up in 50 days. So it costs at the bare minimum 2.8 bucks a day or $84/month to run a full archive node.

http://www.amazon.com/Seagate-Desktop-3-5-Inch-Internal-ST4000DM000/dp/B00B99JU4S

u/kastang · 3 pointsr/DataHoarder

This isnt the most accurate resource, but according to CamelCamelCamel (Amazon price monitoring), most drives seem to go down almost steady overtime: WD RED 3TB, Seagate 4TB

u/weltraumMonster · 3 pointsr/technology

12 Exa bytes using this harddrive of 4TB
are (12TB 1024TB 1024TB) / 4TB = 3.145.728 hard drives.
In words: 3 million and a fuckton.

u/hiddenb · 3 pointsr/Bitcoin

> $150 per 2 terabyte hard drive

4 TB for $155. About $0.038 per GB.

u/3-methylbutan-1-ol · 3 pointsr/seedboxes

You have a few options at that price point.

Plex needs a pretty powerful processor for transcoding - for 1 stream, we're talking a reasonably recent i3 (I think Sandy Bridge would do it), for more than that... that's into Xeon territory (or i5 & i7 quad cores).

The cheapest server I'd trust would be the $17USD Kimsufi with an i3 and a 1TB drive. Bump that up to $19USD and you've got a 2TB drive. Don't hold me to that, though; I've never tried the particular processor that they use. I'm just basing this off the usage that my own personal Plex server encounters under load. That's probably the best option on the Kimsufi side of things. Of course, this doesn't meet your space requirements, but you can always buy multiple of them - and the advantage there is that you have multiple processors (for transcoding) as well as multiple network interfaces (for seeding, watching movies, all that jazz).

E3-SAT-1 ($42USD) is a good option for SoYouStart (16GB RAM, 2x2TB, E3-1225v2). I would trust the E3-1225v2 to handle Plex just fine because Geekbench puts it at a similar performance level (perhaps a little higher) to the processor I use in my Plex machine (i3-6100), and that can handle BD remuxes just fine. I've never had multiple streams of super high bitrate stuff though, so that's always something to look into. E3-SAT-2 and E3-SAT-3 aren't worth the high extra cost, because you won't be needing that RAM. Hyperthreading on E3-SAT-3 would help with transcodes, but not worth the huge price premium IMO. Of course, this storage config is still lacking for your requirements. Which brings us on to the "big daddy" of servers on SYS, haha.

E5-SAT-2-32 ($66USD) gives you a kick ass 6 core processor (Geekbench is mostly dominated by the v2 version of the processor but the few v1 benchmarks I've seen put it at 17k-18k multi core, versus the 9k-10k multi core score of E3-SAT-1), 32GB of RAM, and two 3TB drives. This will handle encodes just fine. It also has just the right amount of storage.

Those are really the best options I can think of in any given price bracket for OVH. These servers all give you great price per TB (very near to $10 per TB for all of them) and I think the CPU power scales pretty linearly with the server cost. So it really depends what you want to do. You could get multiple cheap servers (for $76USD you'd get 8TB with Kimsufi, $84USD for 8TB with E3-SAT-1). Two of the E3-SAT-1s would certainly beat out one of the E5-SAT-2-32s in transcoding power - the Kimsufis would probably be the same. Your bandwidth is also split over multiple ports, so you have a higher throughput. Also, if one server fails, the other ones should be unaffected. The disadvantage is that you have to manage all of this, and it is without a doubt easier to just get one big server and stick everything on that. To be honest, it's probably best to just keep everything on the one server, so the E5-SAT-2-32 is probably the best option if you want to get the full 6TB of storage right now. Now is a very good time to buy a SoYouStart server, too; they usually have VERY expensive setup fees (closer to $100 than $0, I don't recall the exact numbers, but it's quite a bit), but for this month they have decided to waive the fees, so it might be best to jump on it now if you want to avoid that.

You can have some really elaborate setups if you separate things, but that generally costs A LOT. A friend of mine had a setup with a rendering server with an amazing CPU and port that is connected to numerous mass-storage servers that have lower costs per TB of storage but not very good CPUs. It was a neat project, but it cost a lot.

In the long run though, if it's just for personal use (and if you have the ability to do it), I would advise just buying a NAS and sticking everything on there. It's a high upfront cost, but it is totally worth it in the end, because hard drives will cost you about $25USD per TB on Amazon. It'll have paid for itself in a few months, and the advantage is, it actually belongs to you, whereas with dedicated servers, you'll have to continue paying forever... I'd only consider a dedicated server if you have a very nomadic lifestyle or if you don't have good internet uplink and want to host for your friends.

u/Acknown3 · 2 pointsr/buildapc

Why not get four of these?

u/[deleted] · 2 pointsr/buildapcsales

What would be a better deal, getting this or waiting for a 3TB to get to $110 or a 2TB to $80? I don't desperately need more space right now, but there's always the possibility that one of my drives could fail at any moment.

Also, Amazon did the price match again and it has the prime shipping: http://www.amazon.com/Seagate-Desktop-3-5-Inch-Internal-ST4000DM000/dp/B00B99JU4S/ref=cm_cr_pr_product_top

u/CAPTAIN_FIAT · 2 pointsr/btc

What?

8MB x 6 blocks an hour x 24 hours a day x 365 days a year = 420 GB a year.

4 TB hard drives are now under $100

That's about 10 years of always full 8MB blocks for $95.99.

Not so sure... Right. Not so sure you can do basic home economics. Not so sure you don't work for blockstream.

Data caps on ISP plans are orders of magnitude higher than 420GB a year. Admit your mistake and don't repeat these lies ever again.

u/phab3k · 2 pointsr/battlestations

case: Corsair Carbide Series White 500R Mid Tower Computer Case
http://www.amazon.com/gp/product/B005E97ZUU/ref=oh_details_o09_s00_i00?ie=UTF8&psc=1

motherboard: MSI Computer Corp. Motherboard ATX DDR3 1333 LGA 1150 Motherboards Z87-G45
http://www.amazon.com/gp/product/B00D12OBEU/ref=oh_details_o09_s01_i04?ie=UTF8&psc=1

processor: Intel Core i5-4670K Quad-Core Desktop Processor 3.4 GHZ
http://www.amazon.com/gp/product/B00CO8TBOW/ref=oh_details_o09_s02_i00?ie=UTF8&psc=1

thermal paste: Arctic Silver 5
http://www.amazon.com/gp/product/B000OGX5AM/ref=oh_details_o09_s01_i00?ie=UTF8&psc=1

psu: Cooler Master V1000 - 1000W Power Supply with Fully Modular Cables and 80 PLUS Gold Certification
http://www.amazon.com/gp/product/B00CGY4ETG/ref=oh_details_o09_s02_i03?ie=UTF8&psc=1

heatsink: Cooler Master Hyper 212 EVO
http://www.amazon.com/gp/product/B005O65JXI/ref=oh_details_o09_s01_i02?ie=UTF8&psc=1

memory: Corsair Vengeance 16GB (2x8GB) DDR3 1600 MHz
http://www.amazon.com/gp/product/B006EWUO22/ref=oh_details_o09_s01_i01?ie=UTF8&psc=1

fans: Corsair Air Series AF120 Quiet Edition Twin Pack Fan
http://www.amazon.com/gp/product/B007RESG7G/ref=oh_details_o09_s02_i02?ie=UTF8&psc=1

Corsair Air Series AF140 Quiet Edition Single Fan
http://www.amazon.com/gp/product/B007RESGGC/ref=oh_details_o02_s00_i01?ie=UTF8&psc=1

storage: Seagate Desktop HDD 4 TB
http://www.amazon.com/gp/product/B00B99JU4S/ref=oh_details_o08_s00_i00?ie=UTF8&psc=1

Samsung Electronics 840 Pro
http://www.amazon.com/Samsung-Electronics-Series-2-5-Inch-MZ-7PD256BW/dp/B009NB8WRU/ref=sr_1_1?ie=UTF8&qid=1382907278&sr=8-1&keywords=samsung+840pro

Seagate Barracuda 3 TB HDD
http://www.amazon.com/gp/product/B00B99JU4S/ref=oh_details_o08_s00_i00?ie=UTF8&psc=1

keyboards: CM Storm QuickFire Stealth
http://www.amazon.com/gp/product/B00CKJ2EZI/ref=oh_details_o05_s00_i00?ie=UTF8&psc=1

Ducky Shine II TKL Mechanical Keyboard White LED Backlit (Black Cherry MX)
http://tigerimports.net/sunshop/index.php?l=product_detail&p=12170

mouse: Logitech G9X
http://www.amazon.com/Logitech-Programmable-Laser-Gaming-Precision/dp/B001NTFATI/ref=sr_1_1?ie=UTF8&qid=1382907692&sr=8-1&keywords=logitech+g9x

hot swap hard drive bay: Plugable USB 3.0 SATA Hard Drive
http://www.amazon.com/gp/product/B00APP6694/ref=oh_details_o07_s00_i00?ie=UTF8&psc=1

monitor: ViewSonic VX2703MH-LED 27-Inch LED-Lit Monitor
http://www.amazon.com/gp/product/B008A3KFB8/ref=wms_ohs_product?ie=UTF8&psc=1

sata cables: 18" White SATA 3 III 6 GB/s
http://www.amazon.com/gp/product/B00DK68OA4/ref=oh_details_o09_s01_i03?ie=UTF8&psc=1

lighting kit: NZXT CB-LED20-WT 2-Metres Light Sensitivity Sleeved LED Kit
http://www.amazon.com/gp/product/B0046Y5Z92/ref=oh_details_o09_s02_i05?ie=UTF8&psc=1

u/burgerga · 2 pointsr/IAmA

I've done a nearly identical thing many times with a different set of products. Every once in a while I need to expand my NAS with higher capacity drives. A Seagate Barracuda 4TB bare internal hard drive currently runs around $146 on Amazon. A Seagate Expansion 4 TB external drive (which contains a Barracuda drive inside it) runs around $123. So I just buy the external drives and rip the things out. Money saved and I can throw my old smaller drives in a brand new external enclosure!

u/bestjakeisbest · 2 pointsr/college

i would recommend giving her a large internal desktop hard drive and a desktop hard drive dock, and then just teacher her how to run backups on her own. mac computers have a built in function for backups called time machine, which looks like it can save any files, as well as manage multiple backups, and can probably even do some sort of timed back up, all your daughter would have to remember is to hook the laptop up to the hardrive dock. This has an added bonus of if her laptop's hard drive ever fails she could probably spend $100 (total) or so to have it fairly quickly repaired if she has the backups on the external hard drive, she would just bring her macbook and the desktop hard drive into a computer repair shop and probably pick it up same day, working just as it was before the hard drive failure.

u/patzer · 2 pointsr/synology

I bought a pair of https://www.amazon.com/dp/B00B99JU4S/ for my DS213j over a year ago and have not had any problems

u/vladsinger · 2 pointsr/techsupportgore

Not even close. On this $183 4TB hard drive you'd be able to fit around 470 1080p mkv rips and assuming an average of $15/blu-ray/hd download that would be well over $7000. Content is expensive, hardware is not. You could make your setup massively redundant for a fraction of the cost of legitimately acquiring content.

u/boxsterguy · 2 pointsr/htpc

FreeNAS is an appliance-like OS for NASes, and installs directly on a bootable USB stick. You do not need a boot drive, which means you don't need the SSD.

Instead, buy a 5th hard drive so you can run RAIDZ2 (ZFS version of double parity RAID6), and don't waste your money with Red drives. You don't need any of the features provided by Reds, and if you buy something like this the savings across 4 drives ($30 * 4) is almost enough to buy a 5th one outright.

u/69ted69 · 2 pointsr/4chan
u/renational · 1 pointr/buildapcsales
u/must_find_bumpityboo · 1 pointr/techsupport

They were G-Technology ones off some enterprise drives I picked up earlier this year. I just unscrewed the inserts and stuck them on the satas.

These are the drives I used http://www.amazon.com/gp/product/B00B99JU4S?psc=1&redirect=true&ref_=oh_aui_detailpage_o03_s00

u/matt2mattpc · 1 pointr/hardwareswap
u/cup-o-farts · 1 pointr/GreatXboxDeals

Better off spending a little more on something like this man seriously. If your dead set on Seagate (not my favorite) you can get a 6gb internal for this price on Amazon too, but i prefer the hgst.

HGST Deskstar 3.5-Inch 4TB 7200 RPM SATA III 6Gbps 64MB Cache Internal Hard Drive (0F14681) (HDS724040ALE640) https://www.amazon.com/dp/B0084JFLUS/ref=cm_sw_r_cp_apa_NBrmybJST2ZDP

Seagate SATA 6Gb/s 3.5-Inch 4TB Desktop HDD (ST4000DM000) https://www.amazon.com/dp/B00B99JU4S/ref=cm_sw_r_cp_apa_3ErmybN51BVH0

u/much_longer_username · 1 pointr/techsupport

Given that you've already experienced data corruption / loss, and that a drive with those specs can be had for about 50 bucks these days, I really wouldn't bother with reusing that drive.

Also keep in mind that for double the price you can have four times the storage

u/user84738291 · 1 pointr/Hosting

https://www.amazon.com/Seagate-SATA-3-5-Inch-Desktop-ST4000DM000/dp/B00B99JU4S

First result on google.

Still haven't answered the original question.

Continuing to ignore the heavily discounted prices the larger hosts will no doubt get.

If you want to have an adult discussion and learn some more on the matter then do some reading before you post. Backblaze have been publishing data on building high capacity storage boxes for a long time now, they have plenty of blog posts on failure rates and prices of hard drives, and I believe in an earlier post pricing up an entire storage box.

https://www.backblaze.com/blog/hard-drive-cost-per-gigabyte/

u/PonkyBreaksYourPC · 1 pointr/pcmasterrace

oh the blue 3tb are 5400rpm...

Maybe just buy a WD Black 3TB then. You can't hear them over fans anyway.

You could also get a 5900RPM Seagate Baracuda 4TB

http://www.amazon.co.uk/Seagate-ST4000DM000-3-5-Inch-Desktop-Drive/dp/B00B99JU4S

Won't be as slow as a 5400RPM but still not that good.

Aren't Hitachi / HGST Deskstar 7K4000 available anywhere?

u/ActivateHeroShield · 1 pointr/xboxone

My concern with these drives is that with games running they need high ventilation. I encourage anyone with or without tech savvy to get themselves an enclosure and an internal hard drive and build the drive themselves.

Enclosure I use, 3.0, with a nice fan, drive never gets hot.

4TB Internal HD

Tons of tutorials online, including the instructions that come with the enclosure.

It's super simple, literally open the enclosure, pop the drive in, plug it in to your xbox, and turn it on.

u/intensely_human · 1 pointr/news

You can record video at 1080p/60 frames per second, for someone on the street 40 hours a week, and store one year's worth of that for about $950 (26 terabytes, purchased 4 terabytes at a time at current consumer prices).

sources:

u/Drewology · 1 pointr/buildapc

Easiest cheapest way? Think how much space you're going to need (lets just say 4TB to give you room to grow). There's several options:

  • Buy a Seagate 4TB External Hard Drive USB 3.0. These will allow you to move between systems and move everything to the 4TB harddrive.
  • If you want faster than USB 3.0 speeds, but 4TB spinning drives and pick up a SATA docking station.

    With both of these options, I will tell you to buy at least two of whatever you do. If its the USB 3.0 harddrives, but two 4TB drives and make two copies. You don't want your backup to fail. Always have a redundancy.

    There are more automated options that will pull from your systems at X interval and make copies on seperate drives, but that is more expensive. I just gave you the quick easy way.

    Once you move the data over, you take the hard drives and store them in top of your closes or a firebox if you have one for all your essential documents.
u/Dubios · 1 pointr/buildapc

Hey. Was planning to store stuff on it mainly, but also play some video games.

What can be said about this HDD http://www.amazon.com/Seagate-SATA-3-5-Inch-Desktop-ST4000DM000/dp/B00B99JU4S/ref=sr_1_1?ie=UTF8&qid=1458823224&sr=8-1&keywords=Seagate+SATA+6Gb%2Fs+3.5-Inch+4TB+Desktop+HDD+%28ST4000DM000%29 as im leaning to buying that one at the moment?

u/falcon4287 · 1 pointr/raspberry_pi

This was a simple cluster, not really designed for running a lot of VMs. We run 3 AD servers, a File Server, and one server for a special piece of software. That's a total of only 5 Windows 2008 R2 VMs, but you can see that it can handle much more.

>SAN $230: http://www.ebay.com/itm/RACKABLE-2U-SERVER-S5000PSL-2-x-INTEL-QUAD-CORE-L5420-2-5GHz-16GB-1TB-SATA-/121402377113?pt=COMP_EN_Servers&hash=item1c44254399
x2 VM Server $1200: http://www.ebay.com/itm/Dell-PowerEdge-C1100-CS24-TY-1U-2x-XEON-QC-L5520-2-26GHz-4xTRAYS-72GB-DDR3-/261355969100?pt=COMP_EN_Servers&hash=item3cda079a4c
SSD $75: http://www.amazon.com/Crucial-MX100-adapter-Internal-CT128MX100SSD1/dp/B00KFAGD88/
x2 Boot Drives $206: http://www.amazon.com/Seagate-Desktop-3-5-Inch-Internal-ST3000DM001/dp/B005T3GRLY/
x2 Storage Drives $280: http://www.amazon.com/Seagate-Desktop-ST4000DM000-3-5-Inch-Internal/dp/B00B99JU4S/
x3 Batteries $300: http://www.amazon.com/CyberPower-CP1000AVRLCD-Intelligent-1000VA-Mini-Tower/dp/B000QZ3UG0/
Shelf $31: http://www.amazon.com/Odyssey-ARS2-Space-Shelf-Accessory/dp/B0002DV0GI/
Server Rack $281: http://www.amazon.com/Tripp-Lite-SR4POST25-Cabinet-Capacity/dp/B004OB8T72/
Microsoft Server 2008 R2 $695: http://www.amazon.com/Microsoft-Windows-Server-Standard-Packaging/dp/B00H09CF70/
x2 Microsoft Server CALs $298: http://www.amazon.com/Microsoft-Windows-Server-2012-OEM/dp/B0093CBTOM/
Switch $66: http://www.ebay.com/itm/DELL-POWERCONNECT-2716-USED-/251627465136?pt=US_Network_Switches&hash=item3a962a69b0
Firewall $90: http://www.amazon.com/EdgeRouter-ERLite-3-512MB-Ethernet-Router/dp/B00CPRVF5K/
Rack Screws $27: http://www.amazon.com/Tripp-Lite-SRCAGENUTS-Enclosure-Hardware/dp/B001DW8J5C/
Drive Converter $15: http://www.amazon.com/Icy-Dock-EZConvert-2-5-Inch-Converter/dp/B002Z2QDNE/

That is the full setup from the rack down to the software licenses that runs 144GB RAM and 4TB usable drive space on ZFS with a 128GB SSD Read cache. It falls short of $4k. We use XenServer and OpenIndiana.

That's only two VM servers, but every VM the client needs can easily run on one in case of a failure. Just thought I would share this setup to show that it is feasible to price a VM cluster out at under 6k. This is not the cheapest build I've done, but definitely near it and much smaller than I would recommend for most people. It is actually smaller than I recommended for this client, but it is what it is.

u/PacoBedejo · 1 pointr/pcmasterrace

That's $5.13 of storage space and presumes you don't delete it once you've watched it.

https://www.amazon.com/Seagate-SATA-3-5-Inch-Desktop-ST4000DM000/dp/B00B99JU4S

u/yohomatey · 1 pointr/editors

I have five of these in my Drobo 5N. Over two years, no problems so far.

u/Kontu · 1 pointr/techsupport

That's exactly what I wanted - and it helps a ton

You have two drives installed.

A Crucial 240GB SSD
and a 4TB Seagate drive (this one https://www.amazon.com/Seagate-SATA-3-5-Inch-Desktop-ST4000DM000/dp/B00B99JU4S)

You do not have any other drives installed / detected, certainly no 1TB Western digital drive.

The reason you see that 2TB with the 1.6TB remaining unused is because the drive is formatted with MBR partition table instead of GPT, and MBR has a 2TB limit. THat's exactly what we'd expect to see with the 4tb drive

u/omeganon · 1 pointr/xboxone

>and hard disk drives that are faster than the internal one will result in better loading performance despite their external nature

Because they are using a hard drive that is faster. Hard drive speed is 100% determined by their rotational velocity/seek time. A 7200 RPM drive is faster than a 5400 RPM drive, for example.

The Seagate 4TB that was used for the 'test' is a 5900 RPM drive.

https://www.amazon.com/Seagate-SATA-3-5-Inch-Desktop-ST4000DM000/dp/B00B99JU4S

5900 RPM is faster than 5400 RPM so the load times will be faster. If they could put it inside the console the same load times would be seen.

I really encourage you to understand how hard drives and their interfaces work. It's interesting stuff and you'll be better positioned to make correct and factual arguments.

u/LocalAmazonBot · 1 pointr/Futurology

Here are some links for the product in the above comment for different countries:

Amazon Smile Link: Seagate


|Country|Link|
|:-----------|:------------|
|UK|amazon.co.uk|
|Spain|amazon.es|
|France|amazon.fr|
|Germany|amazon.de|
|Japan|amazon.co.jp|
|Canada|amazon.ca|
|Italy|amazon.it|
|China|amazon.cn|




This bot is currently in testing so let me know what you think by voting (or commenting). The thread for feature requests can be found here.

u/dweller_12 · 1 pointr/buildapc

https://www.amazon.com/dp/B00B99JU4S See below

What is your boot drive?

u/PiHasItAll · 1 pointr/DataHoarder

RAIDZ2 made up of

  • 6x 4TB HGST Coolspin avg price $97/each on sale
  • 2x 4TB Seagate Desktop $114 each

    RAIDZ1 local backup made up of

  • 3x 3TB HGST Deskstar NAS
  • 2x 3TB Seagate 3TB could-die-at-any-moment model

    mirror offsite backup (most important datasets) made up of

  • 2x 2TB Seagate LP

    mirror offsite backup (most important datasets) made up of

  • 2x 1.5TB Seagate

    .

    $ sudo zpool list
    NAME SIZE ALLOC FREE EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
    tank 29T 11.8T 17.2T - 7% 40% 1.00x ONLINE -

    Keep in mind there is a 5.03% discrepancy between the reported size (e.g. sudo zfs list) and the actual size (du -b) based on the computations in this google sheet. For instance, my 800GiB file appears as 760GiB according to this zpool. This is not the case on my raidz1 backup and everything is represented accurately. It's just a matter of the vdev/blocksize/recordsize configuration chosen.

    You'll want to setup your pools using these options:

    sudo zpool create tank -o ashift=12 raidz2 <disks>...

    and your datasets with these options:

    sudo zfs set compression=lz4 tank
    sudo zfs set recordsize=1M tank
    sudo zfs set atime=off tank
    sudo zfs set xattr=sa tank

    So, to answer your question,

    24 10^12 bytes / (1024^4 bytes / TiB) (31/32 zfs overhead) = 21.1457 TiB

    If I do sudo zfs list -p I get

    Used | Available | Total
    ---|---|----
    |9,208,112,973,696 | 12,752,323,246,208 | 21,960,436,219,904 |

    (but this is the 5.3% affected value).

    So to go in reverse, 21,960,436,219,904 1.053 32/31 = 23,861,934,092,934 bytes, which is pretty damn close to the expected 24 * 10^12 advertised.
u/kennyj2369 · 1 pointr/DataHoarder

Do you have any old PC hardware you'll be re-using for this build?

A 4TB Seagate drive is $118 on Amazon. You'll need 3 of these to get 12TB, and that's with no redundancy or backup. That's $354 which leaves you with $146 for your build. You could save $10 each if you bought the 4TB external drives for $109 each and remove the drive from the enclosure.

You might be able to find a decent processor for $146, but you'd still need a motherboard, RAM, power supply, and case.

Maybe someone else can find cheaper drives for you.