Slow NFS when cio/dio enabled Post: 302589294

7 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

ls -l over NFS slow

I have an HP-UX server with a Network Appliance Filer attached over Gigabit Ethernet. I am noticing very slow response time when using "ls -l" on one directory on one of the several NFS mounted filesystems. The "ls" command by itself does not seem to be a problem. Typically I get a response within...

2. AIX

CIO/DIO and JFS2 read ahead

Hi Guys, I wonder if after enabling CIO/DIO at the filesystem level and assuming that CIO/DIO will bypass the JFS2 read ahead available when not using CIO/DIO my questionis what parameters I can play with to tune/improve the CIO in order to obtain similar performance for sequential reads (...

3. UNIX for Dummies Questions & Answers

Remote server mount slow - NFS

Hi, Following my last post I've mounted the remote server on my local server. However copying files from this mounted server is increadbily slow. If I copy files using rcp it's very fast so I assume there must be a setting somewhere? Any help appreicated. Thanks

4. Red Hat

NFS writing so slow

Hi, I facing an NFS problem. I have machine1, which has diskA and diskB, and machine2, both are Mandriva 2009 Linux. When I am on machine2 and NFS mount both diskA and diskB of machine1. Writing to diskA is very fast, but writing to diskB is very slow. I tried different mount rsize and wsize...

5. Red Hat

file writing over nfs very slow

Hi guys, I am trying something. I wrote a simple shell program to test something where continuous while loop writes on a file over the nfs. The time taken to write "hello" 3000 times take about 10 sec which is not right. Ideally it should take fraction of seconds. If I write on the local disk, it...

6. Red Hat

How to enable AIO and DIO on rhel5 64bit?

Hi Friends, Please help me to understand, how to enable async disk IO and Direct disk IO in ext3 filesystem on rhel5. Regards, Arumon

7. Red Hat

RHEL 5.6 Slow rsync to NFS array

Hi All, I have RHEL 5.6 with a 70GB local directory of Web content. Images, PHP scripts etc. I need to copy all this content to an NFS array thats mounted on the RHEL server. I did a baseline cp to copy the content one week ago. Since my baseline copy the local directory has grown by 8GB....

LEARN ABOUT LINUX

remote-filesystems

remote-filesystems(7)					 Miscellaneous Information Manual				     remote-filesystems(7)

NAME

       remote-filesystems - event signalling that remote filesystems have been mounted

SYNOPSIS

       local-filesystems [ENV]...

DESCRIPTION

       The  remote-filesystems event is generated by the mountall(8) daemon after it has mounted all remote filesystems listed in fstab(5).  moun-
       tall(8) emits this event as an informational signal, services and tasks started or stopped by this event will do so in parallel with  other
       activity.

       This event is typically used by services that must be started to manage remote filesystems.  When it occurs, local filesystems such as /usr
       may not be mounted.  For most normal services the filesystem(7) event is sufficient.

       This event will never occur before the virtual-filesystems(7) event.

EXAMPLE

       A service that wishes to be running once remote filesystems are mounted might use:

	      start on remote-filesystems

SEE ALSO

       mounting(7) mounted(7) virtual-filesystems(7) local-filesystems(7) all-swaps(7) filesystem(7)

mountall							    2009-12-21						     remote-filesystems(7)