NASLite Network Attached Storage

I have just installed a PCI Express -USB3 card (on a XP PRO SP3 machine) and bought an USB3 external hard drive (WD).

Then have done some speed testing with Diskwriggler on the local USB3 drive and the NASLite on a gigabit lan

Here are the results (min, avg, max) MB/s

USB3:

Write 31.6___35.8___42.4
Read 75.4___82.1___84.3

NASLite:

Write 41.8___53.8___75.6
Read 20.4___21.0___24.0

I find the write speeds of the USB3 quite low (like an internal sata disk). The read speeds are really nice. Probably some caching /read ahead somewhere...

Write speeds on the NASLite are real nice (faster than on the local disks!). The read speed is very slow. I wonder what is slowing things down. Any ideas ? Where should I start looking ?

I'll have to test the read speeds on another computer on the same lan...

Robby

OK, I've done some more testing from another computer on the Lan

Writing to NASLite: min: 32.6___avg: 53.4___ max: 65.6 MB/s
Reading from NASLite: min: 6.3___avg: 20.3___ max: 22.2 MB/s

So the numbers are almost the same: min and max write speeds are a bit lower but avg same as the other computer and the read speeds are the same too and they are low

Any ideas ? Mike, help...

Rob, not knowing the hardware of the server kinda makes trouble shooting tough.

Remember that NL uses memory as a write cache and so the numbers will be fairly fast for small data writes.

Reads are at the mercy of the drive and the controller as well as the the drivers. The Linux kernel drivers have been changing allot over the last few years and some of the changes have hurt performance in various areas such as networking or I/O to name a couple. Can't find the link but it had a fair bit of info on it as I recall.

Mike