allanonmage
Dabbler
- Joined
- Aug 20, 2023
- Messages
- 31
I had a TrueNAS scale server with RAIDZ2 with 6x WD 14TB drives, giving me a usable 50.x TB of storage. I got an HBA from Art of the Server, some cables, and 6 more drives (Toshibas) and doubled the drive count to 12, all of them are 14TB enterprise drives. 6 are on the motherboard SATA ports, and 6 on the HBA. I was mucking about the interface and saw that the existing pool could be expanded, and since I only have test data on the machine right now anyways, figured I'd give it a shot. I added the drives to the pool, and wound up with double the capacity. I was anticipating more than that since I figured 2 drive redundancy was good enough for now. It seems that I'm missing 2 drives worth of capacity, leaving me at 100.x TB usable space (I expected anotehr 24 TB or so of usable space). I think what happened is that I wound up with a 2nd VDEV and each VDEV is a RAIDZ2, so now I have 4 drives of redundancy. The system shows it as "2 x RAIDZ2".
In Devices, I see two different VDEVs, each with 6 disks. I split the WD and Toshiba drives across both the motherboard SATA and HBA ports, thinking that since the drives are different, that should split my odds across two controllers against issues later down the line. I am pleased to report that TrueNAS DGAF that I moved the drives from one controller to another, which I had heard is what it's supposed to do. However, the VDEVs are 6x WD (the original) and 6x Toshiba (the new ones).
I did buy one of the Mastering ZFS books on Amazon, but the osmosis technique is not working, and squirrels showed up to steal my attention.
In Devices, I see two different VDEVs, each with 6 disks. I split the WD and Toshiba drives across both the motherboard SATA and HBA ports, thinking that since the drives are different, that should split my odds across two controllers against issues later down the line. I am pleased to report that TrueNAS DGAF that I moved the drives from one controller to another, which I had heard is what it's supposed to do. However, the VDEVs are 6x WD (the original) and 6x Toshiba (the new ones).
I did buy one of the Mastering ZFS books on Amazon, but the osmosis technique is not working, and squirrels showed up to steal my attention.
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