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Forum Discussion
Re: stripe size
what is the stripe size of an X-RAID2 array? is it a fixed setting or can it be changed?
I suspect that changing the stripe size will not improve your performance. Though I've never tried it.
Generally you won't see any performance gain with teaming if you are testing with a single user. Teaming protocols are designed for trunking, and usually are designed to limit a single data flow to 1 gbit. That prevents packet loss when the connection is switched to a normal gigabit client.
If you have SSH enabled you can measure the performance of the raw raid array. That lets you separate the network and SAMBA performance.
You might also test with NasTester (http://www.808.dk/?code-csharp-nas-performance). The PC hard drive speed of course also impacts the network performance. Are you using an SSD?
Another benchmark would be to set up windows file sharing on another PC, and compare that performance with the NAS (on the same client PC).
In any event, smallnetbuilder measured about 95 MB/s read and about 65 MB/s write with RAID-5 when they reviewed the ultra-4 in 2010. You won't get 125 MB/sec (1 gigabit/8 -> 125 mbytes not 128), even with jumbo frames. Ethernet has overhead, and CIFS requires responses, which create dead times when the network isn't maxed.
Generally you won't see any performance gain with teaming if you are testing with a single user. Teaming protocols are designed for trunking, and usually are designed to limit a single data flow to 1 gbit. That prevents packet loss when the connection is switched to a normal gigabit client.
If you have SSH enabled you can measure the performance of the raw raid array. That lets you separate the network and SAMBA performance.
You might also test with NasTester (http://www.808.dk/?code-csharp-nas-performance). The PC hard drive speed of course also impacts the network performance. Are you using an SSD?
Another benchmark would be to set up windows file sharing on another PC, and compare that performance with the NAS (on the same client PC).
In any event, smallnetbuilder measured about 95 MB/s read and about 65 MB/s write with RAID-5 when they reviewed the ultra-4 in 2010. You won't get 125 MB/sec (1 gigabit/8 -> 125 mbytes not 128), even with jumbo frames. Ethernet has overhead, and CIFS requires responses, which create dead times when the network isn't maxed.
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