[CentOS] Very slow disk I/O

[Jatin Davey]

On 2/3/2015 11:06 AM, Gordon Messmer wrote:
> On 02/02/2015 08:52 PM, Jatin Davey wrote:
>> So , You dont think that any configuration changes like increasing 
>> the number of volumes or anything else will help in reducing the I/O 
>> wait time ? 
>
> No, because that won't change the number of heads that are present to 
> service the IO requests, nor to segregate requests effectively. Your 
> primary goals should be to reduce IO (investigate using LVM backed VMs 
> instead of file-backed) 
[Jatin] Sure , I have no idea about LVM so i will do my learning on it. 
Thanks for pointing to it.
> or to increase hardware resources (possibly a larger number of smaller 
> disks if SSDs are not in budget).
[Jatin] This is also one option that i can try for sure since usage of 
disks instead of SSDs certainly falls within my budget.
>
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