Guest muaddib32 Posted August 10, 2008 Posted August 10, 2008 I have two servers I am running as hyper v clients on a new W2008 server. They are running very slowly. It takes minutes for them to perform the simplest action such as opening IE. The virtual disks are stored on a RAID5 array. I used to have them running as clients on a Athlon3200 W2003 server with 2GB RAM running VMWare server and they were much faster. The disk then was just RAID0. Can anyone suggest how I can speed them up. Without adding extra hardware as I shouldn't have thought it was necessary. Cheers Ben Host: Windows 2008 Standard (normal not server core) 8GB RAM Xeon 5030 processor Client 1 Small Business Server 2003 2GB RAM Client 2 Windows Server 2003 + SQL Server 2005 1.5GB RAM
Guest Mike Moreland Posted August 11, 2008 Posted August 11, 2008 RE: Client machines slow under hyper v You might want considering running a raid 0+1, instead of raid 5. I too, have 2 servers. One runs 2003 server, while the other runs 2008. I have both servers in raid 0+1. I've run raid 5 before and had performance issues. Due to the amount of parity calculating required, RAID 5 can seriously slow down a system. Performance will depend to some extent upon the stripe size chosen. Also, if your using a software raid 5 you'll experience even more performance loss. The overhead necessary in dealing will all the parity will continue to bog down writes. Here are some of raid 0+1 advantages. RAID 0+1 is implemented as a mirrored array whose segments are RAID 0 arrays RAID 0+1 has the same fault tolerance as RAID level 5. RAID 0+1 has the same overhead for fault-tolerance as mirroring alone High I/O rates are achieved thanks to multiple stripe segments Excellent solution for sites that need high performance but are not overly concerned with achieving maximum reliability. Good luck. -- Mike Moreland © 972.271.5083 Integrated Secure "muaddib32" wrote: > I have two servers I am running as hyper v clients on a new W2008 server. > They are running very slowly. It takes minutes for them to perform the > simplest action such as opening IE. The virtual disks are stored on a RAID5 > array. > > I used to have them running as clients on a Athlon3200 W2003 server with 2GB > RAM running VMWare server and they were much faster. The disk then was just > RAID0. > > Can anyone suggest how I can speed them up. Without adding extra hardware > as I shouldn't have thought it was necessary. > > Cheers > Ben > > Host: > Windows 2008 Standard (normal not server core) > 8GB RAM > Xeon 5030 processor > > Client 1 > Small Business Server 2003 > 2GB RAM > > Client 2 > Windows Server 2003 + SQL Server 2005 > 1.5GB RAM >
Guest muaddib32 Posted August 13, 2008 Posted August 13, 2008 RE: Client machines slow under hyper v Hi Mike, Thanks for your reply. Good point. I've never used RAID5 before. I better grab myself another disk and then move the array "Mike Moreland" wrote: > You might want considering running a raid 0+1, instead of raid 5. I too, > have 2 servers. One runs 2003 server, while the other runs 2008. I have > both servers in raid 0+1. I've run raid 5 before and had performance issues. > Due to the amount of parity calculating required, RAID 5 can seriously slow > down a system. Performance will depend to some extent upon the stripe size > chosen. Also, if your using a software raid 5 you'll experience even more > performance loss. The overhead necessary in dealing will all the parity will > continue to bog down writes. Here are some of raid 0+1 advantages. > RAID 0+1 is implemented as a mirrored array whose segments are RAID 0 arrays > RAID 0+1 has the same fault tolerance as RAID level 5. > RAID 0+1 has the same overhead for fault-tolerance as mirroring alone > High I/O rates are achieved thanks to multiple stripe segments > Excellent solution for sites that need high performance but are not overly > concerned with achieving maximum reliability. > Good luck. > > > > -- > Mike Moreland > © 972.271.5083 > Integrated Secure > > > "muaddib32" wrote: > > > I have two servers I am running as hyper v clients on a new W2008 server. > > They are running very slowly. It takes minutes for them to perform the > > simplest action such as opening IE. The virtual disks are stored on a RAID5 > > array. > > > > I used to have them running as clients on a Athlon3200 W2003 server with 2GB > > RAM running VMWare server and they were much faster. The disk then was just > > RAID0. > > > > Can anyone suggest how I can speed them up. Without adding extra hardware > > as I shouldn't have thought it was necessary. > > > > Cheers > > Ben > > > > Host: > > Windows 2008 Standard (normal not server core) > > 8GB RAM > > Xeon 5030 processor > > > > Client 1 > > Small Business Server 2003 > > 2GB RAM > > > > Client 2 > > Windows Server 2003 + SQL Server 2005 > > 1.5GB RAM > >
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