Re: [Beowulf] Varying performance across identical cluster nodes.

2017-09-10 Thread Christopher Samuel
On 09/09/17 04:41, Prentice Bisbal wrote: > Any ideas where to look or what to tweak to fix this? Any idea why this > is only occuring with RHEL 6 w/ NFS root OS? No ideas, but in addition to what others have suggested: 1) diff the output of dmidecode between 4 nodes, 2 OK and 2 slow to see what

Re: [Beowulf] RAID5 rebuild, remount with write without reboot?

2017-09-10 Thread Christopher Samuel
On 07/09/17 04:33, mathog wrote: > Is there a difference between "mount -o remount" and "mount -a" if the > partions/logical volumes are already mounted "ro"? I think mount -a will only try to mount filesystems that are not already mounted. -a, --all Mount all filesystems (of the give