Aug 27 2014
Microsoft Exchange traffic can be load-balanced with Microsoft NLB but it requires to set up 4 Exchange servers for the sake that NLB isn’t compatible with Exchange cluster. Most Microsoft guys do not recommend it.Among NLB downsides, Exchange services are monitored with a basic ping, meaning the service is considered to be active even if […]
Feb 23 2011
I’ve noticed backups are getting slower and slower over time going from 500 to 2500MB/min throughput. I run backups on 2 dedicated RAID0 disks hosted on a iSCSI MSA array first, and duplicate them on tapes. Since I want to use the same array for a new database project, I want to measure and tune […]
Jan 14 2011
Here are a few steps to configure iSCSI disks on Linux. Although I set this up on a Redhat Enterprise connected to an HP MSA 2012i, the whole configuration remains generic and can be applied to any SAN.I will add another post to check how both Linux and Windows perform on the same iSCSI device, […]
Dec 19 2009
All systems need bridge-utils package installed either with yum or apt-get. Redhat / Fedora Edit each network interface startup file that is going to be added to the bridge And create the bridge configuration file Ubuntu Debian
Sep 04 2009
WPA encryption is not much hassle to set up and is way more secure than WEP if you use a strong pre-shared key. First off, we’ve got a wifi interface that can be displayed with iwconfig (from the wireless tools): [root@db ~]# iwconfig lo no wireless extensions. eth0 no wireless extensions. ath0 IEEE 802.11g […]