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тАО01-13-2010 12:16 PM
тАО01-13-2010 12:16 PM
Things have gone great with the following exception.
I migrated a Win2k3 64 VM from VMWare Server 1.0.7 to ESXi thin provisioned (VM was stored on an NFS server).
I copied the VM to a stand alone ESXi 4.0 server (HP DL360 G5 6x146GB 10k drives, 400i RAID card with 512 MB cache, 2 x quad core CPU's, 16GB RAM using the servers local storage.
The VM's performance has been abysmal, about 10 times slower than the same VM on a busier VMWare 1.0.7 server!
There are only 3 VM's running in total on the new server, each with only 3GB RAM, and single CPU, so I doubt it's a hardware performance issue.
The VM is thin provisioned on the local Storage which is VMFS. Could this be the issue?
Should the VM be thick provisioned? If so, is it easy to convert to thick provisioning?
I migrated the VM by creating a monolithic drive (on VMWare server 1.0.7), copied that to the NFS server, and changed the VMDK file to show VMFS instead of FLAT).
I then converted that disk to thin provisioned, and copied it to the ESXi 4.0's local Storage.
I then built a new VM with the same specs and config on the VMWare ESXi 4.0 using the created thin provisioned disk.
Is it the thin provisioning on Local Storage (VMFS)?, what could I have missed?
Any advice would be appreciated.
Thanks in advance,
Alan
Solved! Go to Solution.
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тАО01-14-2010 06:03 AM
тАО01-14-2010 06:03 AM
Re: Win2k3 VM performance degraded after migration to ESXi 4 from VMWare Server 1.0.7.0
I don't have any HP management tools on the server, so I can't even check the hardware status (do I really have the BBWC on the P400i RAID card on that server).
How can i check the servers status, running ESXi 4.0 without the management tools?
Thanks,
Alan
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тАО01-14-2010 06:11 AM
тАО01-14-2010 06:11 AM
Re: Win2k3 VM performance degraded after migration to ESXi 4 from VMWare Server 1.0.7.0
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тАО01-14-2010 08:49 AM
тАО01-14-2010 08:49 AM
Re: Win2k3 VM performance degraded after migration to ESXi 4 from VMWare Server 1.0.7.0
They are not even live yet, and with only 3 VM's the system should fly, but even the VM UI is shaky (disconnects), so I'm wondering whether I have a hardware issue, and need to check the hardware configuration (I think I have the BBWC but am not sure).
Without the HP management tools installed how do I check the hardware remotely? Any ILO commands to check the hardware configuration or status?
Are there any HP management utils I can install on the free version of ESXi 4.0?
Thanks in advance,
Alan
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тАО01-14-2010 09:46 AM
тАО01-14-2010 09:46 AM
SolutionThe iLO has _some_ access to the server's hardware and some log information, but for deep insight you do need access via the operating system.
For hardware monitoring on ESXi you need the vendor's CIM providers:
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=15351&prodSeriesId=3884319&prodNameId=3884320&swEnvOID=4040&swLang=13&mode=2&taskId=135&swItem=MTX-8758956156b94fc1a59e078961
In the past they were also bundled with ESXi on the VMware pages and there is one on HP's software kiosk:
https://h20392.www2.hp.com/portal/swdepot/displayProductInfo.do?productNumber=HPVM06
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тАО01-14-2010 11:15 AM
тАО01-14-2010 11:15 AM
Re: Win2k3 VM performance degraded after migration to ESXi 4 from VMWare Server 1.0.7.0
That should be visible from the VI Client.
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тАО01-16-2010 12:56 PM
тАО01-16-2010 12:56 PM
Re: Win2k3 VM performance degraded after migration to ESXi 4 from VMWare Server 1.0.7.0
I did install the "HP ESXi Offline Bundle", and i now see info about the drives and the BBWC (fully charged).
I have not configures SNMP on the VM yet, but will. Thanks for the Veeam recommendation. I have it installed, but did not use it on that server for monitoring yet.
I did use the smart start CD on the server to check the RAID cache settings and found that fast write was not enabled, so I enabled that (server has redundant power supplies and separate power circuits, as well as the BBWC), and RAID was also set to 75% write. What setting should I set of that parameter for ESXi and VM's?
I also recreated the vmdk files and kept them at hardware version 4, but did not notice any performance improvements from that.
How is using the P2V converter better than the conversion method I used? Should I see performance or stability improvements out of using it for the windows VM's?
SO enabling fate write on the RAID has given a performance improvement, but still not to where (I think) this server is capable of delivering.
I'll do the P2V conversion if you guru's think it is better than the conversion method I used, and will provide better performance.
Thanks in advance,
Al
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тАО01-17-2010 04:26 AM
тАО01-17-2010 04:26 AM
Re: Win2k3 VM performance degraded after migration to ESXi 4 from VMWare Server 1.0.7.0
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тАО01-17-2010 08:38 AM
тАО01-17-2010 08:38 AM
Re: Win2k3 VM performance degraded after migration to ESXi 4 from VMWare Server 1.0.7.0
The only issue that showed up was that when I assigned the same IP's on the new virtual NIC's i received an error message stating that the same IP was assigned to another NIC that is currently hidden, so the virtual hardware upgrade process does not delete the old virtual NIC's. I was still able to use the IP addresses, but that makes you wonder what else is lurking under the skin.....
The resolution for the IP issue is to show hidden devices in the device manager and delete them. That does not work so well. The other way is to go into the registry and delete the old hardware NIC devices.
The Linux VM's seem to be performing fine, but they were created brand new on ESXi. The Windows VM's would be a real pain, and very time consuming to configure on a new ESXi VM, so I'm trying to avoid that as much as possible.
I may not have mentioned that the physical RAID is configured using RAID 6, so performance is not as fast as RAID 5 would provided, but should still be very adequate for hosting only 3 - 4 VM's which are not very CPU, memory or disk intensive...
Al
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тАО01-19-2010 07:26 AM
тАО01-19-2010 07:26 AM
Re: Win2k3 VM performance degraded after migration to ESXi 4 from VMWare Server 1.0.7.0
Lot's of UN-recognized hardware until the new tools were installed. Had to re-authenticate Windows with MS due to the hardware changes.
Same IP address overlay issues due to the old NIC's still on board but hidden in the device manager.
I'm currently copying the VM to the data center, to try its performance, but it did not seem much faster (if at all) than the VM's created via the other conversions.
Thanks for all advice,
Al