VMware and RHEL5

Long time no blog I know. Very remiss of me ūüė¶

Been real busy at work with VMware and RHEL. A bit of struggle getting everything to work. Still can’t get DB2 to start automatically at boot or find reliable scripts for IBM’s HTTP Admin Server for /etc/rc.d/init.d. Rather frustrating.

I did learn a lot about the apps though and got some interesting tuning stuff out of it. Most of the stuff comes off of various pages which I referenced in del.icio.us. Here’s the gist – I hope it will be useful for you ūüôā

Never swap – keep Virtual Machine memory usage under 75% of installed RAM on laptop

VMware Fusion: use 2.0.1 with Preferences->”Optimize for Mac OS application performance” and “Never optimize mouse for games”


add noapic nolapic apci=off clocksource=acpi_pm elevator=noop to kernel line like this:

kernel /vmlinuz-2.6.18-92.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet noapic nolapic apci=off clocksource=acpi_pm elevator=noop


domino          soft    nofile          16384

domino          hard    nofile          65535

domino          soft    nproc           16384

domino          hard    nproc           65535

db2adm9         soft    nofile          16384

db2adm9         hard    nofile          65535

db2adm9         soft    nproc           16384

db2adm9         hard    nproc           65535


session required pam_limits.so


vm.swappiness = 0

vm.overcommit_memory = 1

vm.dirty_background_ratio = 5

vm.dirty_ratio = 10

vm.dirty_expire_centisecs = 1000

dev.rtc.max-user-freq = 1024

.vmx Options to add:

MemAllowAutoScaleDown = “FALSE”

MemTrimRate = “0”

mainMem.useNamedFile = “FALSE”

sched.mem.pshare.enable = “FALSE”

host.useFastClock = “FALSE”

monitor_control.virtual_rdtsc = “FALSE”





autostop = “softpoweroff”





About mfinocchiaro

IT Architecture Guru for large PLM software company but dabbling in Web 2.0 and other stuff.
This entry was posted in LINUX, VMware and tagged , , , . Bookmark the permalink.

One Response to VMware and RHEL5

  1. Pingback: 2010 in review | Fino’s Weblog

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