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WD Purple or Green?

Gerr
By Gerr
in Servers, NAS, and Home Lab
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I have 4x3TB WD Reds to be used in an external 5-bay USB enclosure that I will connect to my TrueNAS server as backup.  I plan on setting it up in RaidZ1 for 12TB of backup space.  To reach that amount, I need a 5th drive.  While I could just spend $90+ and buy a new 3TB WD Red, I have spare 3TB WD Purple & Green drives available and was wondering if I could use either and not have to pay for another HDD.  This will only ever be used as backup storage for my TrueNAS server, so 99.9% of the time will be writes only.  Because the Purple drive is designed for Raid and heavy writes, I think it will fit fine.  Thoughts?

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You can mix drives. It's not an uncommon practice. It just needs to be understood that the speed of the pool will be limited by the slowest drive though that won't really matter much in this circumstance.

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Might as well just use the Purple. It's rated for 24/7 abuse unlike Greens, so if anything it'd give you some peace of mind even though there aren't really any major benefits to using it.

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2 hours ago, Gerr said:

I have 4x3TB WD Reds to be used in an external 5-bay USB enclosure that I will connect to my TrueNAS server as backup.  I plan on setting it up in RaidZ1 for 12TB of backup space.  To reach that amount, I need a 5th drive.  While I could just spend $90+ and buy a new 3TB WD Red, I have spare 3TB WD Purple & Green drives available and was wondering if I could use either and not have to pay for another HDD.  This will only ever be used as backup storage for my TrueNAS server, so 99.9% of the time will be writes only.  Because the Purple drive is designed for Raid and heavy writes, I think it will fit fine.  Thoughts?

purple rated for 24/7 use

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