CMA
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11-28-2015 12:13 AM - edited 03-01-2019 12:29 PM
what is the diffrence between cable managment arm and KVM ?
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Unified Computing System (UCS)
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11-28-2015 04:36 AM
Hi Peter,
The KVM console is a video over IP representation of the blade server. This facility is required to build and manage the servers from remotely. In an order to access each blades remotely , a pool of IP addresses is assigned as a management
A good example is located in the link below;
http://www.cisco.com/c/en/us/support/docs/servers-unified-computing/ucs-manager/110435-ucs-kvm-00.html
While the cable managment arm is a physical device that you install on the hardware. I listed some pros and cons in my opinion over the Cable Managment arm.
Reasons PRO
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GREATLY reduced likelihood of accidental disconnection when working on other things in the rack. This is big for me .. it just sucks when you are debugging a problem with server A and accidentally knock out the power cord for server B.
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Tidiness / Cleanliness - the rack just looks better with arms, and it is harder to keep the rack tidy without arms.
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No need to disconnect (and reconnect) when doing maintenance. Even if the maintenance is done offline, not having to touch the connections makes it easier.
Reasons CON
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Airflow / cooling - the arms can reduce airflow, particularly in dense racks.
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Difficulty changing cables - I think this is overblown. When swapping a cable in a crisis you skip the cable management, get both ends plugged in, and make it pretty when things settle down.
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More moving parts - can pinch fingers, catch on things, etc.
These two items are completely different.
HTH,
Qiese Dides
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11-29-2015 05:07 AM
Peter,
The cable management arm is an extra part you order that attaches to the server on the backside to aid with cable management in a datacenter environment.
The KVM is a keyboard, video, and mouse combintation you need to access the server if you were physically standing next to it.
Let me know if you need clarification.
--Wes
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04-29-2016 10:36 AM
Hello,
Would you know the part number for Cable management Arm for UCS C-Series / BE7K ?
thanks,
Kapil
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04-29-2016 11:02 AM
Found it.
Posting it in case anyone else is also looking for the same:
UCSC-CMA-M4 - Reversible CMA for tool-less C240 M4 ball bearing rail kit
http://www.cisco.com/c/dam/en/us/products/collateral/servers-unified-computing/ucs-c-series-rack-servers/c240m4-sff-spec-sheet.pdf
tx,
Kapil
