[OpenAFS] Speed of AFS, continue...

[Mike Fedyk]

ted creedon wrote:

>On a test server:
>1. Play with the hdparm utility - there are some cryptic settings and
>performance tests. Use 32 bit transfers (sometimes the OS resets to PIO/16
>bits on bootup).
>  
>
I would not recommend this.  If the controller and hard drive are DMA 
capable, IDE DMA is enabled in the kernel, and it is still not using DMA 
there might be a compatibility problem between the controller and disk.  
Look in your dmesg output for a line with "blacklist" or something similar.

Getting a PCI IDE card is probably your best bet.

Mike