Admins Handbook

Show jobs with: crontab -l
Edit jobs with: crontab -e

Examples:
44 13 * * * /etc/webmin/cron/tempdelete.pl
00 3  * * * /root/restartMySQL.sh
First line runs script every day at 13:44
second line runs script every day at 3:00

restartMySQL.sh
#! /bin/sh
/etc/init.d/mysql restart

Remember execute right
dos2unix restartMySQL.sh
apt-get install tofrodos

vswitch AND portgroup needs to support MTU 9000 for optimal iscsi performance.

esxcfg-vswitch -l
esxcfg-vmknic -l

Change MTU on vSwitch
esxcfg-vswitch -m 9000 vSwitch1

Add vmk with MTU 9000 support
esxcfg-vswitch -A ISCSI vSwitch1
esxcfg-vmknic -a -i 172.16.0.32 -n 255.255.255.0 -m 9000 ISCSI

Jumbo frames MTU 9000 test to an iscsi target
vmkping 172.16.0.10 -s 9000

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