Installation manual

Adding a Managed Volume
Selecting a VPU (optional)
9-46 CLI Storage-Management Guide
Splitting Namespace Processing within a VPU
Each VPU has two domains, one per namespace. If the metadata share fails badly for
one volume in a VPU domain, the other volumes in the same domain also fail. For
example, consider a system with 7 volumes in a single namespace, divided between 2
VPU domains. A severe metadata failure for volume 1 also affects volumes 3, 5, and
7:
This occurs naturally with default-VPU assignment, but it is undesirable in
installations with a large number of volumes in one or two namespaces.
single namespace
volume 3 volume 5volume 4
volume 6 volume 7volume 2volume 1
VPU 2VPU 1
D1 D2 D1 D2