how I can optimize the performance of the database exchange 2010

hello to everyone.
 I have an exchange 2010 running, but I think the performance is very low.
How  I can optimize the performance of the database?
How I can know the size of the database?

 Thank you.
limmontreefreeAsked:
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xcomiiiConnect With a Mentor Commented:
Now there is your problem, RAID1 with SATA disk is not very fast at all. And if you add the overhead of running it as VM, then you ask for problems. Add more disks if possible, or even run the Exchange databases on seperate single disks if you have solid recovery and backup strategy.

I am not an expert in HyperV, but you can add perfomance counters in Performance Montitor to the HyperV host and I guess you will see a lot of disk activity. Disk Queue length is one of the counters of interest.

Technet also have a lot of resources of what you need to look for:
http://technet.microsoft.com/en-us/library/dd335215.aspx
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Neil RussellTechnical Development LeadCommented:
Performance issues are far more likely down to the hardware server and network
What server is exchange running on? Spec?
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limmontreefreeAuthor Commented:
Ok is a HyperV virtual Machinem asigned 6GB ram
Host is a dual Xeon
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Neil RussellTechnical Development LeadCommented:
What performance issues do you have? Why do feel the need to "optimize"?
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limmontreefreeAuthor Commented:
Some equipment is currently "hung" waiting to synchronize Outlook with Exchange.
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xcomiiiConnect With a Mentor Commented:
This is usually because of the underlying I/O system is to slow to cope with Exchange. What kind of disk systems do you have? Do you have RAID, SATA/SAS/SCSI? Shared storage?
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kevinhsiehConnect With a Mentor Commented:
Add more RAM to the VM. Try 8/10/12 GB. Your current RAM is less than what Microsoft recommends for a server running all roles.  
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limmontreefreeAuthor Commented:
thanks,
The disk are two disk in RAID 1 motherboard controller, disk are SATA, maybe i need to perform a speed test.

I'll try to allocate more memory.

On the other hand, certainly do not need but ....

 no way to see the performance of the database?
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limmontreefreeAuthor Commented:
thanks
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