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- Aug 31, 2009
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Ok so I'm running FreeNAS 0.7.1 on the system in my sig in x86 trim. It's a socket 754 Sempron 2800+ 1.6GHz I believe. I've got 1GB of DDR400 and two Hitachi Ultrastar 1TBs in a soft raid1. When I copy from the shares I'm getting nearly 0% CPU cause it's just reading. However when I write to the device I'm getting 100% CPU usage. Now I know it has to do parity work to ensure both drives are the same but this is RAID1 not 5. I thought the CPU usage would be much less. When I write to the unit it's at 400Mbps over a gig network at around 50MB/s. Is anyone else seeing this kind of CPU usage. Is this normal?
If I put the NAS on faster hardware to bring down the CPU usage could it result in faster writes? I doubt that part cause my reads are around the same speeds with 0% CPU, just a thought.
Any help I appreciate and thank you for in advance.
If I put the NAS on faster hardware to bring down the CPU usage could it result in faster writes? I doubt that part cause my reads are around the same speeds with 0% CPU, just a thought.
Any help I appreciate and thank you for in advance.