Hard disk performance slow

Taking care of your Linux box.

Hard disk performance slow

Postby mashkoor.qadir » Wed Jun 26, 2013 11:33 am

I have 2 server on which we were running Oracle these are working fine, we need to increase the disk space of the both server.
after installing new hard disk once of them performing dead Slow where as other is fine.
How can i check why the performance is very slow?
I also found below message in log messages,

smartd[12649]: Device: /dev/sda, 5 Currently unreadable (pending) sectors

what does this error mean and does this effect the performance of the server? where as on other server there is no such message.
can any one guid me how to rid of the slow performance.

Thanks in advance.
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