- Feb 21, 2019
So at this point stacking the switches has redundancy built in but the main goal is more ports? I did ask before how often network cards die or ports die. the reason for that is I have done LACP mostly for redundancy more than performance so if a NIC died or a port died.You configure the stack ports within the OS, you can pick which of the 40g ports to use on the back.
The 6610-24p take a little less juice than the 48p but if you have 2x power supplies in them you are going to have the same noise. I supposed you could run just one PS in each of the two. 2x 24p vs. 1x 48p are going to take more watts though.
You can always get 2x 6610s and keep one as a cold spare/powered off to swap in if the primary goes down instead of having it on all of the time. You won't have as many 10g/40g ports as 2x 24p's though. These are enterprise grade switches which are designed to run 24/7 so the odds of one going out is probably fairly slim. They have redundant power supplies and fans which can be swapped out if they go bad.
If it isn't mission critical I wouldn't worry about dual homing, LACP or any of that. If you have a spare 6610-48p (or whatever) powered off it is only going to take you a little bit of time to swap cables and power it on. The 2x 24p's would give you more redundancy assuming you dual home everything, but then again you are doubling your port requirements than single homing.
I at least want to connect the NAS and Backup Server to 40G. Everything else will be 10G or 1G ports. I do not need more than 48ports currently, I use about 20-26 ports right now. Stacking would be cool but at this point is it worth the extra money for that. Power isn't that big of an issue but my main thing if the redundancy isn't worth it then I would prefer not to use the extra power. As for other devices such as the NAS, Backup server, Main Server, Router, etc. that all have 10G or 40G capabilities, is it worth having LACP on those devices. My main server runs a decent amount of VM's, half of them being game servers and the others being house systems. same with the backup server and the NAS. Is it worth it to have LACP on those sytstems for redundancy or is the device likely to dies before a port or NIC dies?
If it isn't common for ports to die, then I amy just do one 6610-48p as it has dual psu's anyway so power is redundant at least. I would have two 40G ports to use and the other two breakout into 10G ports. At that point is it still worth doing LACP on the other devices then, since I would only have one switch. At 40G the NAS and backup server would not need the LACP for speed but more for redundancy. and rest of the systems LACP 10G would be also be more for redundancy as any single 10G or single 40G connection would be enough for any of the tasks at hand. I would prefer not to have a cold spare if it is not used and these are not known to die easily. If the LACP/Network Redundancy isn't worth it at this point then the only reason I would stack would be for pure enjoyment. I could either do two 24's or a single 48. If it were worth it I would assume the two 24' are better as I could stretch the LACP across the two switches for redundancy. If I go with the single 48 would the redundancy be worth doing on that let alone if the redundancy is even worth it in the first place.