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107 lines
8.5 KiB
Plaintext
107 lines
8.5 KiB
Plaintext
Episode: 3417
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Title: HPR3417: Ceph cluster hardware
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Source: https://hub.hackerpublicradio.org/ccdn.php?filename=/eps/hpr3417/hpr3417.mp3
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Transcribed: 2025-10-24 22:58:55
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---
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This is Hacker Public Radio Episode 3417 for Tuesday the 7th of September 2021.
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Today's show is entitled,
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Seff Cluster Hardware.
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It is hosted by Daniel Person and is about 12 minutes long and carries a clean flag.
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The summary is looking into the hardware behind my Seff Cluster.
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This episode of HPR is brought to you by an Honesthost.com.
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Get 15% discount on all shared hosting with the offer code HPR15.
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That's HPR15.
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Better web hosting that's Honest and Fair at An Honesthost.com.
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Hello Hacker's and welcome to another podcast.
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And I'm Daniel Person and today I'm going to talk a little bit about hardware.
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I have a Seff Cluster at home and it's a little bit of a storage solution.
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And usually you create a noise.
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You have large machines with a lot of memory and a lot of disk space in order to save a lot of
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things on them and perhaps run your Plex server from it or run any other media server from it.
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But in my case I wanted to have a place where I could save all my media and be pretty sure
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that it doesn't get corrupted if I lose any data or something like that.
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So I want to have a lot of copies of it.
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I also have a backup solution where I send it and this was actually prompted even more by
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me trying to restore my backup after I upgraded to Windows 10 where all my files were lost
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and then I tried to get it from my backup and I got the news that the backup solution had
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removed all my files because they thought that it was removed when the Windows server was removed.
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So I switched over to Windows 10.
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They didn't recognize my computer anymore, thought the old computer was not valid anymore
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and removed that backup which was a really hard pain for me and I'm not using them anymore.
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So I wanted to have a good local backup and a good backup solution in the cloud.
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And I'm thinking about getting a second backup in the cloud as well because this time I lost
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to 102.7 terabytes of data originals from my YouTube production and I don't want to lose that again.
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You can actually take out all your data from Google so you can export those files again.
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I'm not sure that I get the same quality but I at least get something back which is really nice.
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So my backup solution back at home is a safe cluster and that's because we are running
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a safe at work as well so I wanted to have something that I can both use as a backup solution
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and also use as a test bed for my development at work or my work.
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So I created a safe cluster I started with what can I have that is sheep and small.
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So I was thinking raspberry pie that could be something can we actually use raspberry pies and put
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a hardware on them so we can have a hard disk on them and I actually found a solution from Geekworm
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where you had a package with an extra card where you put an SSD on it and then you could mount
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that to your Raspberry Pi. I bought a Raspberry Pi 3 with one gig of memory which in hindsight
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was a lot less than I needed and it's also an ARM processor but I got it to work and tested with
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my wife's old SSD so it's just 256GB or something like that but it actually worked in that configuration
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but getting safe to work on it was a real pain because there were no packages for ARM
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and I needed to rebuild the safe clusters. I had to build my own packages which took a week or
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something and I couldn't build all of it because some of it was written in node and building something
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in node requires more than one gig of memory so that was not an option but eventually I got it to
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build with those packages and I got safe to work on it but I'm not running it in my cluster.
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I'm using it as a client to do my backup so if my computer isn't on it still would do backups
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from my cluster using that Raspberry Pi which was pretty nice. The Raspberry Pi was 75 or 50
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dollars or something like that in Sweden and then the packaging for a container and also this
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extra card was 75 dollars and then you have a lot of shipping and taxes and so on because you buy
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things abroad and that's really expensive in Sweden. So this was not really a good way to have
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small, usable hosts in my safe cluster so I was looking at something else and I talked to my
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company about it and because it was something that could help my work they were really keen
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on helping me out so they said that we can buy the computers and you just supply them with some
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hard disks so you can have your backups. We do a solution like that so first we tried to buy a
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mini PC, ASUS, PM40, BC556, ZV which has a Celeron CPU in it with four gigabytes of memory and
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it had a 64 gigabytes SSD in an M2 slot which was really nice. I didn't really look at what the
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CPU could do because it was more than enough. You don't really need that much CPU power but you
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need at least four gigabytes of memory if you have a little bit of a larger node, a little bit larger
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hard disk in it. So there was also an extra slot for two and a half inches hard drives. I could put
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that in as well and I found some hard drives that was not SSDs but they were really large and not
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that expensive so I could buy a four terabyte disk for about 150 dollars or something like that
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so I put that in but that hard drive was a bit thicker so it didn't really fit inside of the casing
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in a good way so I had to do some customization to get that to work so this was not a really good
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node. So after that we skipped that one and bought another one called MSIQB5 mini PC and the last one
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cost me 265 US dollars plus the hard disk and the new one here MSIQB5 mini PC is about 312
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dollars so a little bit more expensive but it's much nicer. It has a Celeron 525U
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for gigabytes memory and RAM and it has a 64 hour gigabytes SSD in an M2 slot as well
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and what's really nice with this one was that you mounted the hard drive in the floor of the
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machine and then you had a cable up to the motherboard so you had a little bit more space to actually
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fit this little bit thicker SSD in it which was a really nice trade off. It was a little bit
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more expensive but I now can put either 4 terabyte or 5 terabyte disk in these and if you have a
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couple of those you have a lot of redundancy. In my case I run my SEF cluster with at least two copies
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up to three copies so I have a lot of redundancy I can lose two machines and be pretty sure that
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everything works just fine so doing updates and so on on the SEF cluster would be really easy.
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So this is my setup at the moment I'm running a SEF cluster with the latest Octopus release
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and I'm having a solution that can actually reach it from my Windows machines and my Linux
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machines which is really nice so I have an extra hard drive with a lot of space in it.
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If you're interested in seeing these machines and how large they are and how they are set up
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I have a YouTube video that I go through the machines and show them. I'm not a pro at that but I
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think it went pretty well at least and I will put that in the description. I hope that you found
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this interesting. I hope that you have some more information about what kind of hardware you can
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get. I reached out to a hardware forum and they thought that that solution was not that good.
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They thought that perhaps you should use some other computer called an HPE EC208 which had two
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SATA drives for five and a half inches drives which could be cheaper and also better for the
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environment because you can have more space in one unit. I haven't looked into that but that could
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be really interesting. Those are a little bit larger and for a test cluster that is not really
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needed but if I will add more host to this one I will look into other tiny or mini computers that
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I can put in to get more space. I hope that you like this little podcast and I hope to
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and I hope that you use a lot of open source software and if you want to reach out just put a
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comment in the comment section field and I will read it whenever I get the time.
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You've been listening to Hacker Public Radio at HackerPublicRadio.org.
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We are a community podcast network that releases shows every weekday, Monday through Friday.
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Today's show, like all our shows, was contributed by an HPR listener like yourself.
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If you ever thought of recording a podcast then click on our contribute link to find out
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how easy it really is. Hacker Public Radio was founded by the Digital Dog Pound and the
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Infonomicon Computer Club and is part of the binary revolution at binrev.com. If you have
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comments on today's show please email the host directly leave a comment on the website or record
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a follow-up episode yourself. Unless otherwise stated today's show is released under creative
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comments, attribution, share a like, 3.0 license.
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