9
votes
3answers
1k views

Why not use vmware tools for time synchronisation?

We have two VMWare environments running a bunch of (mainly) Redhat 5.9 and 6.4 guests. We are having issues with time drift (minutes ahead per week). We use ntp, syncing to the local domain ...
1
vote
2answers
313 views

parameters to check from guest if ESX host overloaded

I have access to Redhat linux 5.7 guests on vmware ESX (probably 4) hosts which I suspect is often overloaded ( CPU and IO ). I have no visibility on the ESX host which is managed by another company. ...
0
votes
2answers
2k views

RHEL/CentOS kickstart partition offset

Because of underlying storage, I need the partitions created by the RHEL/CentOS installer to begin on a multiple of 8 sectors. By default the part command during kickstart (see this page for kickstart ...
1
vote
1answer
695 views

VMware RHEL5 guest OS cached memory release

From everything I have read, RHEL will use all available/unused RAM for caching to increase performance. However, this becomes an issue for me in a VMware environment. VMware (ESX4) looks for guest ...
8
votes
2answers
2k views

Adding new virtual disks to a RHEL host in ESX “live”

I'm sure I've just missed which tutorial/manual page covers this, but how do you add get the guest OS to recognize that you've added new drives to it without a reboot? I have a RHEL5 guest running on ...
0
votes
2answers
545 views

Red Hat Clustering Fencing fails

I'm trying to demo (and learn) a Red Hat Cluster on ESXi 3.5 update2.I've set a shared fencing device with the info for my ESXi server. I try fencing a node from Luci, but it only tells me that ...
1
vote
2answers
1k views

OOM-Killer, jboss and kernel panic

We are running RedHat 3.4.6(x32) on VMWareEsx3.5(x64) with 6GB RAM. A few java processes(including jboss) are running in the background. The problem is that the java processes consume lots of memory, ...
2
votes
1answer
3k views

Definition of these metrics recorded in /proc/vmstat on RHEL 5.3 (paging/swapping?)

This question relates to the definition of specific metrics recorded in /proc/vmstat on RHEL 5.3. I'm using nmon to monitor a load test which consists of simulating 2500 users carrying out a days ...
4
votes
1answer
397 views

Limits to NFS share sizes

I want to build a bare-metal RHEL box connected to an FC-array that's presenting it a ~16TB LUN, I can format this LUN any way I like (might choose XFS) but I then want to share this volume out to a ...