Deleting virtual machine snapshots without wasting disk space

Great article for VI3 administrators:

http://searchvmware.techtarget.com/tip/0,289483,sid179_gci1311854_mem1,00.html?track=NL-921&ad=638720&asrc=EM_NLN_3586418

ESX 3.5 Host unable to restart

In my new VMware Infrastructure 3 environment, there were times were an ESX host crashed and failed to restart. Here's the solution provided by VMware:

1. Reboot and start (Troubleshooting) console.
2. Login as "root"
3. At the commmand prompt, type the following:
"esxcfg-boot -p" (Enter)
"esxcfg-boot -b" (Enter)
"esxcfg-boot -r" (Enter)
4. The above would clear the boot ini and log files. Type "reboot" (Enter) to reboot the ESX host.

For proactive monitoring, here's what could be done:

1. Login as "root"
2. At the command prompt, type "df -h".
3. This command would display the size and % utilized for each partitions. The /boot partition should be below 50% utilized.
4. If the /boot partition is above 50%, use the procedure above and reboot the ESX server to avoid a crash.

Cheers!