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Tag: ring size

UCS: How to change ring buffer size and queues for adapters in UCS

by on Jun.14, 2013, under Cisco, UCS, Vblock

Here is the thing that you’ll probably never do but just in case you need to change ring buffer size you’ll know how to do this in Cisco UCS. :)
Before you make changes you should really know what and why you doing this as this is the last thing I would change as the default setting should work fine.

  1. Login to UCSM
  2. Select Servers tab an change Filter to Policies
  3. Expand Adapter Policies you should see all the default adapter policies for Fibre, Ethernet and iSCSI
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  4. Do not change these as they might be used by multiple servers. Create new policy.
  5. To create new policy right click on Adapter Policies and select the policy type Fibre, Ethernet or iSCSI
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  6. Enter policy Name and if you need you can also enter Description.
    Enter the required Queue and Ring Size values and click OK.
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  7. To apply the new policy to the adapter change the Filter to Service Profiles.
  8. Select service profile and the adapter the you want this policy to apply to.
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  9. On the right side change the Adapter Policy to a new one.
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  10. Click Save Changes
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