Struck Posted September 7, 2020 Share Posted September 7, 2020 Hello. I have used an unraid server for 3 years now, and I have been upgrading it ever so slowly. And now the time has come to add a few new harddrives. My current setup: Quote Unraid 6.8.3 - License Unraid OS Plus Intel Xeon E5-2680V4 64GB quad channel memory 4x WD Red 8TB (EFZX) One 1TB Samsung 850 EVO SSD One 300GB Intel SSD (+1 spare) 2x WD Red 4TB (EFRX) The new disks are: 2x WD Red 8TB (EFAX) which is a CMR drive like the others. Current Configuration: Quote One 8TB as parity (27k hours, 3000 start/stop) 3x 8TB in the array (non encrypted) (27k hours, 6000-10000 start/stop) One 1TB 850 EVO as Cache (encrypted) Two 4TB disks as unassigned disks (36k hours, 7000 start/stop) One 300GB SSD as unassigned disk. My array is 20.8/24TB full My Question: Do you think it is time for me to add a second parity drive to my array, or should i simply add the disks to the array, and upgrade with anohter parity later ? What would you do? Quote Link to comment
Hoopster Posted September 7, 2020 Share Posted September 7, 2020 9 minutes ago, Struck said: My Question: Do you think it is time for me to add a second parity drive to my array, or should i simply add the disks to the array, and upgrade with anohter parity later ? What would you do? There is no hard and fast rule for when to add a second parity disk; however, many times the recommendation is to add a second parity disk when you have eight (8) or more data disks to protect. The fewer data disks the lower the possibility that two will fail simultaneously, With a greater number of data disks, that risk increases and you decide where that threshold is for you. In your case, I would still feel comfortable with one parity disk, especially If you have good backups of the important data. However, it does come down to your risk tolerance and comfort level. 1 Quote Link to comment
Struck Posted September 9, 2020 Author Share Posted September 9, 2020 Thank you. I will just add them to the array then. Next round of upgrades will add another parity drive. Now i just have to figure out how the easiest way to make the array encrypted would be... Guess i have to do a lot of data moving arround, to make it work. Quote Link to comment
ChatNoir Posted September 9, 2020 Share Posted September 9, 2020 I am not sure you can encrypt the array, but you can encrypt the drives : https://wiki.unraid.net/UnRAID_6/Security#Encryption Quote Link to comment
Struck Posted September 10, 2020 Author Share Posted September 10, 2020 19 hours ago, ChatNoir said: I am not sure you can encrypt the array, but you can encrypt the drives : https://wiki.unraid.net/UnRAID_6/Security#Encryption Yeah, that was what i ment It requires a reformat, so i will have to offload all the data first. Quote Link to comment
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