On 10/28/2013 1:41 PM, Qing Chang wrote: > We have a cluster of 3 IBM servers that build the base of VMware > vSphere 5 virtual environment. > > 3 major servers are built that use XFS mainly because the size of > the filesystem: 64TB, 32TB and 5TB etc. > > These servers run RHEL 6.4, the XFS filesystems are configured on > IBM Storwise V7000 subsystem through raw device mapping. > > Two of them serve files through NFS and Samba, another one is > a SMTP/IMAP server. > > Accessing files and emails does not seem to be slow. But simple commands > "ls" and "du" run very slow. For example, a first run of ls -l > /var/spool/mail could > take 8 seconds, note we have only 1360 items in this directory. > > "du" would also take much longer to run than ZFS or ext3. > > I could not find any direct reference of XFS possibly having problem with > these kind commands. > > Could this be due to my combination of hardware and software configuration, > or is there some tuning to be done? > > Many thanks, > > Qing Hello Qing, As a Red Hat Enterprise Linux customer your contract entitles you to Red Hat customer support. Support provided by this list is primarily for XFS as shipped in non-proprietary 'upstream' kernels. RHEL and SLES customers should always contact their Linux vendor for assistance with such issues. After all that's why you paid for Linux instead of using a free distribution. -- Stan _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs