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976
July 7th, 2015 02:00
ScaleIO status degrade after change network card MTU
Hello experts
After modifying the SDS network card MTU according fine-tuning-scaleio-1.3x-performance doc,the scaleIO cluster status change to degarde.
Change the MTU back to 1500,the scaleIO cluster status change to normal .
Could you help explain this problem?
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SanjeevMalhotra
138 Posts
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July 7th, 2015 06:00
What is the operating system on the scaleio nodes?
zhangduolong
59 Posts
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July 7th, 2015 18:00
windows 2012 R2
zhangduolong
59 Posts
0
July 7th, 2015 18:00
I find the MTU is 9014 in network card advance setting, is 9014 needed in the following command,or 9000?
netsh interface ipv4 set subinterface mtu=9000 store=persistent
SanjeevMalhotra
138 Posts
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July 8th, 2015 07:00
1. Change the Maximum Transmission Unit (MTU) setting to 9,000, or the highest value that is supported by the switch and the connected nodes. First, determine the appropriate NIC name by typing the command:
Netsh interface ipv4 show interface
2. Type the command:
netsh interface ipv4 set subinterface mtu=9000 store=persistent
where network_ID is the ID from the output in the previous step
3. In the Advanced tab of the Adapter Properties dialog for your vendor and driver, change the value of Jumbo Packet to 9000, as illustrated in the following figure:
4. Click OK. The network connection may disconnect briefly during this phase.
5. Test that the configuration is working, by typing the command:
ping –f –l 8972
Note: Ensure that the switch supports 10 GB ethernet.
SanjeevMalhotra
138 Posts
0
July 8th, 2015 08:00
Please note also that these can differ from NIC to NIC depending on what is supported. Some will only show 1514, 4088, some will show 1514, 4088, 9014.