HDNewbie1028
Dabbler
- Joined
- Oct 8, 2014
- Messages
- 26
I am setting up my first home server, and am a complete n00b so forgive me if I don't provide all the information at first since I don't know what all you would need. Perhaps this is a simple question, but I could not find the info on this forum.
I turned on my FreeNas for the first time last night. I am running the latest version on an ASUS Micro-ITX Motherboard with 16GB of Crucial Ballistic Non-ECC RAM. The FreeNas is running on an 8GB USB stick plugged into a USB 3.0 port on the back of my case.
I have set up 4 - 4 TiB HDD in a RAID Z2 (16 TiB total) for my NAS. I used the Volume Manager option to create my RAID Z2.
I did not change any settings when creating the volume. My assumption was that I would end up with 8 TiB of available storage with the other 8 TiB as the redundancy. It is telling me what I actually have is 6.9 TiB of available space. Compression is set to lz4 and the compression ratio is 1.00x The status of the 4 drives are healthy.
My question is, why did I lose an additional 1.1 TiB of storage? Did I do something incorrectly when i set up the volume? Do I need to get rid of the volume and start over again? Or is that much available space normally lost when creating a volume with a 4 TiB HDD RAID Z2?
I did play around with adding datasets, just to familiarize myself with the process, but the available storage issue was present before I started adding datasets.
The funny thing is, when I first used the volume manager to create the volume it had estimated the capacity to be 7.2 TiB. The Volume Manager did hang on me so after five minutes I closed that window and reopened it. The volume had been created, but the available storage had dropped from 7.2 TiB to 6.9 TiB.
I looked at a RAID converter on another site, and they indicated only 1.56% of storage would be used by ZFS for metadata, which, if that is true, would still give me just under 8 TiB for storage.
So, is this normal and expected, or did something happen that shouldn't? I don't wish to start moving any files over to the FreeNas until I know it is set up with the most available storage and the redundancy ratio is correct.
I turned on my FreeNas for the first time last night. I am running the latest version on an ASUS Micro-ITX Motherboard with 16GB of Crucial Ballistic Non-ECC RAM. The FreeNas is running on an 8GB USB stick plugged into a USB 3.0 port on the back of my case.
I have set up 4 - 4 TiB HDD in a RAID Z2 (16 TiB total) for my NAS. I used the Volume Manager option to create my RAID Z2.
I did not change any settings when creating the volume. My assumption was that I would end up with 8 TiB of available storage with the other 8 TiB as the redundancy. It is telling me what I actually have is 6.9 TiB of available space. Compression is set to lz4 and the compression ratio is 1.00x The status of the 4 drives are healthy.
My question is, why did I lose an additional 1.1 TiB of storage? Did I do something incorrectly when i set up the volume? Do I need to get rid of the volume and start over again? Or is that much available space normally lost when creating a volume with a 4 TiB HDD RAID Z2?
I did play around with adding datasets, just to familiarize myself with the process, but the available storage issue was present before I started adding datasets.
The funny thing is, when I first used the volume manager to create the volume it had estimated the capacity to be 7.2 TiB. The Volume Manager did hang on me so after five minutes I closed that window and reopened it. The volume had been created, but the available storage had dropped from 7.2 TiB to 6.9 TiB.
I looked at a RAID converter on another site, and they indicated only 1.56% of storage would be used by ZFS for metadata, which, if that is true, would still give me just under 8 TiB for storage.
So, is this normal and expected, or did something happen that shouldn't? I don't wish to start moving any files over to the FreeNas until I know it is set up with the most available storage and the redundancy ratio is correct.