
Adding a Direct Volume
Selecting a VPU (optional)
8-20 CLI Storage-Management Guide
Each VPU supports up to 64 volumes from up to 2 namespaces. You can scale the
number of namespaces and volumes on an ARX®6000 by adding more ASMs to the
switch.
Default-VPU Assignment
By default, a newly-enabled volume is assigned to the least-subscribed VPU. If
possible, volumes from every namespace are split between two different VPUs. For
example, the following diagram illustrates the default assignments for a three
namespaces on an ARX®6000 with two ASMs. This assumes that the volumes are
enabled from left to right:
Table 8-1. Numbers of Supported Volumes per Platform
Platform # VPUs # Namespaces # Volumes
ARX®500 1 2 64
ARX®1000 1 2 64
ARX®6000 with 1 ASM 2 4 128
ARX®6000 with 2 ASMs 4 8 256
namespace B
volume 3 volume 5volume 4
namespace C
volume 6 volume 7
namespace A
volume 2volume 1
VPU 1
VPU 3
VPU 4
VPU 2
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