Looking for some strategies to debug certain metadata-related performance issues within a small GPFS cluster.
Some initial information:
GPFS 220.127.116.11 (32TB filesystem, 6 filesets with no placement policy, 18 disks holding both metadata and data, connected to a DS8300 storage array via multiple 4Gb/s FC)
I'm having problems troubleshooting a problem that's been plaguing the environment for some time; data writes and reads are excellent, and within expected data rates. When it comes to scripts and other programs running things like 'ls -l' and things of that nature, performance suffers.
How best would one go about determining what is causing this, and potential ideas for remediation?