how a basic prefetcing happens in server

[Hari Haran]

Dear Team,

Just wondering how a basic prefetch happens in any disk based server storage environment without having any pre-fetch program running on it. For ex. If I have a NAS storage with 10 TB capacity and few of my clients accessing it through TCP (CIFS /NFS), is it possible to cache the files accessed by the users and keep it on the server memory. This server will be one of the file server we can say. Do we need to have a separate program to run the caching mechanism? If so can anyone help me out to whom can i contact for the same.

I would be thankful if I get a acknowledgement details for this mail regard.

Thanks once again,
Hari

[Krzysztof Lichota]

2009/6/17 Hari Haran <hari.ex...@gmail.com>:

> Dear Team,
>
> Just wondering how a basic prefetch happens in any disk based server storage
> environment without having any pre-fetch program running on it. For ex. If I
> have a NAS storage with 10 TB capacity and few of my clients accessing it
> through TCP (CIFS /NFS), is it possible to cache the files accessed by the
> users and keep it on the server memory. This server will be one of the file
> server we can say. Do we need to have a separate program to run the caching
> mechanism? If so can anyone help me out to whom can i contact for the same.

Linux kernel has built-in caching and readahead mechanism so it will
do it on its own.

--

Krzysztof Lichota