I used it on Sun's v20z's and v40z, the only thing that may or may not give you an issue is if you are actually inquiring about mirroring or putting your root drives under SVM (disksuite) control. I believe this part is (was when I was doing it) not supported. Since the v20/40z support HW raid, Sun prefered that you us that, which is very easy to set up. Im assuming the X4100, is probably similiar.
for other FS other than /, SVM works just fine.
The only thing I do not like about the x86 platform in regards to lets saying mirroring. On the sparc platform, lets say I wanted to mirror 2-36gb drives, c1t0d0 and c1t1d0. Well, as lazy as I am, I would use slice 2 (whole disk)
We are able to do this because, Sun certifies their disks, they have the correct FW, and if they are a Sun approved disk, they will ALWAYS be the exact same size, down to the blocks numbers.
This is not the case with the x86 platform (non-certified), at least when I was working continiously with them, it just made it harder because you just could not select slice 2 and create a metadevice on the fly. you had to actually work to get the sizes equal on both disks. That I did not like.
