raidz2 RAIDZ2 CPU Recommendations?

[FluorescentGreen5]

I'm planning on building a RAIDZ2 NAS with 5 used HDDS (3TB, 7200 RPM, SAS) for 9 TB of usable capacity. Does this configuration sound good?

• CPU: i3-13100, https://au.pcpartpicker.com/product/RdjBD3
• RAM: G.Skill Aegis, 2x8 GB DDR4-3200 CL16, https://au.pcpartpicker.com/product/mcH8TW
• HBA: https://www.ebay.com.au/itm/142511043162
• PSU: EVGA 500 GD ,80+ Gold, https://au.pcpartpicker.com/product/vHhmP6
• Case: Thermaltake Versa H24, https://au.pcpartpicker.com/product/FzKhP6

[Electronics Wizardy]

The raid calculation with HDDs takes very little CPU, so its kinda a non issue. 

 

I'd be tempted to get fewer bigger HDDs to save power, but thats me. 

 

That CPU will likely have way more power than needed for a NAS.

[FluorescentGreen5]

1 minute ago, Electronics Wizardy said:

The raid calculation with HDDs takes very little CPU, so its kinda a non issue. 

 

I'd be tempted to get fewer bigger HDDs to save power, but thats me. 

 

That CPU will likely have way more power than needed for a NAS.

I went with the 3 TB HDDs I found because they're incredibly cheap for their capacity. Also, the reason I was concerned about the CPU was that I heard RAIDZ2 is quite CPU-intensive.

[Electronics Wizardy]

Just now, FluorescentGreen5 said:

I went with the 3 TB HDDs I found because they're incredibly cheap for their capacity. Also, the reason I was concerned about the CPU was that I heard RAIDZ2 is quite CPU-intensive.

Z2 uses almost nothing CPU wise with the slow(compared to SSDs).

 

If you want cheaper look at a used syste, you can go back a good amount of generations CPU wise with almost no impact here.

 

Just make sure if your using those cheap drives you take into account the higher power usage and likely higher failure rate into the price calculation.