paths is 8 . is there any problem ?. the another paths are 4 but only this paths is 8 ?
Other datastores have multiple extents like that one? If not, that explain why you're getting 8 paths to that particular datastore.
no just this have multiple extents . is there any problem for performans ? Why is it structured like this ?
Your environment should have 4 paths per LUN, since that datastore is composed by 2 LUNs, so 2 LUNs x 4 paths = 8 paths.
There is no problem with this, but take in mind that depending of your vSphere version, you will have a limit of 1024 paths per hosts.