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Centos 5.5 - Smartctl/hdparm strange behavior with both HDDs

I found out one of our servers was down today due to a HDD failure. The only thing I could see on console the was: scsi 0:0:0:0: rejecting I/O to dead device. This server has 2 HDDs with a software ...
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How can I test hd performance on an OpenVZ container?

CentOS 5.x | VPS | OpenVZ I'm trying out a vps that uses OpenVZ and am not sure what command to type to measure disk read performance. I thought hdparm would work but I get the following: ...