From: =?iso-8859-1?Q?Ragnar_Kj=F8rstad?= Subject: Re: Millions of files and directory caching. Date: Mon, 21 Oct 2002 14:34:50 +0200 Sender: nfs-admin@lists.sourceforge.net Message-ID: <20021021143450.E1944@vestdata.no> References: <086801c278c7$fd7e19c0$6801a8c0@c1886657a> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Cc: nfs@lists.sourceforge.net Return-path: Received: from stine.vestdata.no ([195.204.68.10]) by usw-sf-list1.sourceforge.net with esmtp (Exim 3.31-VA-mm2 #1 (Debian)) id 183blu-0000lp-00 for ; Mon, 21 Oct 2002 05:35:02 -0700 To: Matt Heaton In-Reply-To: <086801c278c7$fd7e19c0$6801a8c0@c1886657a>; from admin@0catch.com on Mon, Oct 21, 2002 at 12:06:26AM -0600 Errors-To: nfs-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Id: Discussion of NFS under Linux development, interoperability, and testing. List-Unsubscribe: , List-Archive: On Mon, Oct 21, 2002 at 12:06:26AM -0600, Matt Heaton wrote: > 1) Can I increase the cache on the client side to hold the entire=20 > directory structure of both NFS servers? If your files don't change to often you can extend the NFS cache timers. See the manpage for mount-options. > 2) How can I tell if I am just maxing the seek time out on my NFS serve= r? iostat? > 3) Each NFS server serves about 60-100 files per second. Is this too m= any per second? Could I possibly be maxing > out seek time on the NFS servers? My IDE Raid card is the 3ware 750 wi= th 8 individual IDE ports on it. All the metadata should be cached on the server; how much RAM does your nfs-servers have? > 4) Is there anything like cachefs being developed for linux?? Any othe= r=20 > suggestions for persistent client caching for NFS? > Free or commercial is fine. I have only bad experiences with (solaris) cachefs, so I'm not sure that's it's a goal to develop something exactly like it :) Anyway; there are lots of alternatives for client-side cache. NFSv4 will allow better caching - not sure if the current patch-set implements this though. Inter-mezzo and coda are other attractive alternatives. Feel free to contact me off the list for more info. Of course the obvious solution is to have a set of web-proxies in front of your web-servers, but I guess there is a reason why you're not doing that... --=20 Ragnar Kj=F8rstad Big Storage ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs