Network very slow after power trip

Sometimes my power supply goes in the company and so does the server. After an unexpected shut down, and boot up automatically, the LAN is unusually very slow. Why is this happening and how do I set it back to be at its normal state?
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moombazAsked:
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Kamran ArshadIT AssociateCommented:
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realtecCommented:
Sounds like you need a UPS ! , if your SBS keeps losing power like that you will end up with corruptions on the file system and exchange. Are you running a software raid ? because that might take sometime to rebuild after a power off situation causing slowness until it has finished.
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moombazAuthor Commented:
ya.. i really need a UPS and implementing soon. this site of mine resides in malaysia. Always happening.  sigh. So the reason why the network terribly slows down is because of the software raid rebulding?
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realtecCommented:
If you have software raid (Check Disk Manager), and the power gets pulled, the raid will start to rebuild itself automatically on next startup. Depending on the size and speed of the hard drives, it could take several hours before they have fully rebuilt. Whilst rebuilding the disk access is dramatically affected causing general slowness all round. Hardware raid generally does not have this problem.
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realtecCommented:
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