[CentOS] disk I/O problems with LSI Logic RAID controller
nate
centos at linuxpowered.netTue Feb 9 17:34:45 UTC 2010
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Fernando Gleiser wrote: > we're having a weird disk I/O problem on a 5.4 server connected to an > external SAS storage with an LSI logic megaraid sas 1078. Not sure I know what the issue is but telling us how many disks, what the RPM of the disks are, and what level of RAID would probably help. It sounds like perhaps you have a bunch of 7200RPM disks in a RAID setup where the data:parity ratio may be way out of whack(e.g. high number of data disks to parity disks), which will result in very poor write performance. nate
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