cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Announcements
Field Notice 70545
2013
Views
0
Helpful
4
Replies
TsapkoDmitry
Beginner

UCS hot add/replace memory/CPU

Hello. As I know on cisco UCS C460 we can extend amount of memory with the help of memory riser boards. Memory riser boards are hot swappable. Does it mean that when I run Win2008R2 Datacenter on c460 server I can hot add and replace memory at riser memory board?

Can I hot replace memory on motherboard slots?

Which models of UCS servers do support hot CPU add/replacement?

1 ACCEPTED SOLUTION

Accepted Solutions
Robert Burns
Cisco Employee

Dmitry,

Yes the memory risers are hot swappable, so assuming the bare metal OS can support hot-add memory it will work.

There are no DIMM slots on the motherboard directly on the C460.  The memory riser is the only motherboard interfaces for memory.

There's no such thing to my knowledge as hot-add CPU on any Cisco platforms.

Refer to the HW Install Guide for more information:

http://www.cisco.com/en/US/docs/unified_computing/ucs/c/hw/C460/install/replace.html#wp1160169

Regards,

Robert

View solution in original post

4 REPLIES 4
Robert Burns
Cisco Employee

Dmitry,

Yes the memory risers are hot swappable, so assuming the bare metal OS can support hot-add memory it will work.

There are no DIMM slots on the motherboard directly on the C460.  The memory riser is the only motherboard interfaces for memory.

There's no such thing to my knowledge as hot-add CPU on any Cisco platforms.

Refer to the HW Install Guide for more information:

http://www.cisco.com/en/US/docs/unified_computing/ucs/c/hw/C460/install/replace.html#wp1160169

Regards,

Robert

View solution in original post

Thank you for answer.

I compared last models of UCS servers, and find out that only UCS C460 supports hot-add/replace memory, and I created small list of hot-swappable parts. May be it will helpful for somebody.

ServercpumemoryPower suppliesPCIe risers/PCIe slotsCooling fansHDD
C260M2nonoyesno/noyesyes
C460M2

no

yesyes-/4 yes and 6 noyesyes
C220M3

no

noyes

no/no

yesyes
C22 M3

no

no- (1 power supply)

no/no

noyes
C24M3

no

noyes

no/no

yesyes
C240M3

no

noyes

no/no

yesyes
C420M3

no

noyes

no/no

yesyes

table fixed

Dmitry - Great table. 

One correction.

All platforms have hot swap HDDs.  It's actually recommended to never swap HDDs with the server powered off with any LSI controllers.

Regards,

Robert

Thank you for correction and remark.

Content for Community-Ad