Archive for the tag 'redhat'

 

 

Aug 27 2014

Cheap Microsoft Exchange Cluster with LVS Load Balancer

Published by under Linux

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 […]

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Feb 23 2011

MSA 2012i SAN Performance Windows vs Linux

Published by under Storage

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 […]

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Jan 14 2011

Multipathed iSCSI SAN Disks on Linux

Published by under Linux,Storage

Here are a few steps to configure iSCSI disks on Linux. Although I set this up on a Redhat Enterprise 5.5 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 […]

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