I`m busy installing a 6 node cluster, some errors or doubt comes out along.
my environment : 3 block, 6 nodes (2 nodes/block) AOS 4.6.2
一. When I create a new container, make the Enable Erasure coding button checked, error pops up"enable EC-X will break the current block awareness !" seems mean ECX will disable block level awareness ?
二. As many of us know, if need locate the physical slot location of a disk, you can simply led on that drive. but there is possibility led on function inaccurate or disabled, in this scenario, you must locate the disk by disk id rule, e.g shelf id.slot/bay ID, but the DISK ID in prism hardware section seems ramdom/ruleless number, I can`t locate physical location for a disk.
三. When I do the test about removing a node from nutanix cluster, A doubt appears: Do I need or is it the best practice to execute storage vmotion(other then only vmotion vm`s ) before removing the node ? I think the diffecrence of two methods is who is the data mover, one is ESXI svmotion, the other is CVM RF ? perhaps I`m wrong totally,even if I choose svmotion, RF recovery still occurs ? Thanks you guys valuable time and help in advance !
四. I enable RF3 first time, and after somes days, user would like to revert to RF2, do nutanix support this ? I know I can online change RF2 to RF3;
another case for RF: when I image node using Foundation tool, I choose default RF2, and Can I enable RF3 support by NCLI command ? (I notice there is related command in NCLI)
similarly, Can I enable EC-X and disable it again ? I`d like to know common features that can be changed twice or many times, other than one change is permanent.
Thanks community friends !
Best answer by JonView original