September 7, 20205 yr 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?
September 7, 20205 yr 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.
September 9, 20205 yr Author 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.
September 9, 20205 yr I am not sure you can encrypt the array, but you can encrypt the drives : https://wiki.unraid.net/UnRAID_6/Security#Encryption
September 10, 20205 yr Author 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.
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