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In case anybody's still reading this, I have a couple of use-case questions. I'm planning on setting up my first volume pool using 4 5TB Seagate ECs. I can't g
by i336_ 11y ago
In case anybody's still reading this, I have a couple of use-case questions.
I'm planning on setting up my first volume pool using 4 5TB Seagate ECs. I can't get any more than four to begin with.
I was intending on using mirrored vdevs, as I'd heard that was basically the easiest way to get started. This is entirely for personal use, and I don't need "enterprise" read/write rates (the hardware I'll be starting with certainly won't manage that), and it won't be the end of the world for (very very rare) resilvers to take all night.
Are there any advantages to not using mirroring, ie using one of the RAIDZ variants? I've already accepted the idea of having to buy new disks two at a time so I can spin up a new vdev with them.
- laumars 11y agoThe biggest advantage is storage space. You lose more potential storage space with mirroring since it's a 1:1, whereas as raidz1 across 4 drives would give you much more storage space but with the caveat that you can only lose 1 drive at a time before your entire pool is lost.
- i336_ 11y agoHmm. 15TB definitely sounds nicer than 10.... :D :D I fully intend to buy disks with widely spaced apart manufacturing dates, so theoretically this should be manageable. Now I get why 8 disks is recommended... you can make a mirrored pair of 4-disk raidz1s, you get >50% storage efficiency, and you can lose any two disks before it dies.