What type of Disk I/O takes place on a FileServer?


 
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Old 12-29-2010
What type of Disk I/O takes place on a FileServer?

When you open a file on a fileserver from your client, what type of operation takes place on the server? I imagine the server's hard drive reads the file that the client has requested, and then makes it available somehow through the network share, is that accurate? Also what service on Unix/Linux is responsible for file sharing, and making shared files viewable to clients (Like windows browser service).

Basically, the file server needs to read the requested file and send it as packets to the client? Can someone give me more detail on this process without becoming too overly scientific?
 
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tapset::nfsd(3stap)													       tapset::nfsd(3stap)

NAME
tapset::nfsd - systemtap nfsd tapset DESCRIPTION
nfsd.dispatch NFS server receives an operation from client See probe::nfsd.dispatch(3stap) for details. nfsd.proc.lookup NFS server opening or searching for a file for client See probe::nfsd.proc.lookup(3stap) for details. nfsd.proc.read NFS server reading file for client See probe::nfsd.proc.read(3stap) for details. nfsd.proc.write NFS server writing data to file for client See probe::nfsd.proc.write(3stap) for details. nfsd.proc.commit NFS server performing a commit operation for client See probe::nfsd.proc.commit(3stap) for details. nfsd.proc.create NFS server creating a file for client See probe::nfsd.proc.create(3stap) for details. nfsd.proc.remove NFS server removing a file for client See probe::nfsd.proc.remove(3stap) for details. nfsd.proc.rename NFS Server renaming a file for client See probe::nfsd.proc.rename(3stap) for details. nfsd.open NFS server opening a file for client See probe::nfsd.open(3stap) for details. nfsd.close NFS server closing a file for client See probe::nfsd.close(3stap) for details. nfsd.read NFS server reading data from a file for client See probe::nfsd.read(3stap) for details. nfsd.write NFS server writing data to a file for client See probe::nfsd.write(3stap) for details. nfsd.commit NFS server committing all pending writes to stable storage See probe::nfsd.commit(3stap) for details. nfsd.lookup NFS server opening or searching file for a file for client See probe::nfsd.lookup(3stap) for details. nfsd.create NFS server creating a file(regular,dir,device,fifo) for client See probe::nfsd.create(3stap) for details. nfsd.createv3 NFS server creating a regular file or set file attributes for client See probe::nfsd.createv3(3stap) for details. nfsd.unlink NFS server removing a file or a directory for client See probe::nfsd.unlink(3stap) for details. SEE ALSO
probe::nfsd.dispatch(3stap), probe::nfsd.proc.lookup(3stap), probe::nfsd.proc.read(3stap), probe::nfsd.proc.write(3stap), probe::nfsd.proc.commit(3stap), probe::nfsd.proc.create(3stap), probe::nfsd.proc.remove(3stap), probe::nfsd.proc.rename(3stap), probe::nfsd.open(3stap), probe::nfsd.close(3stap), probe::nfsd.read(3stap), probe::nfsd.write(3stap), probe::nfsd.commit(3stap), probe::nfsd.lookup(3stap), probe::nfsd.create(3stap), probe::nfsd.createv3(3stap), probe::nfsd.unlink(3stap), probe::nfsd.rename(3stap), stap(1), stapprobes(3stap) IBM
--- tapset::nfsd(3stap)