Like so many reports in VSI, the first three capacity reports follow a similar pattern in terms of how we present the data. Here, we are going to present three separate breakdowns of your capacity based on your allocation strategy. If you use thick provisioning, also called fat provisioning or thin provisioning. Thick provisioning is a simple allocation method that assigns a set of users, maybe a department, with a fixed amount of storage space for their use. The allocated amount is the same regardless of how much space they use. If you have 1 TB of physical space on an array, you can allocate 10 departments 100 GB of space and that’s how much they’ll have regardless of whether they actually use 1, 50, or all 100 GB of that space. You can’t over-allocate when you’re working with thick provisioning because each allocation takes a chunk of the usable storage. It’s a zero sums game. Each department is guaranteed their 100 GB, but let’s face it, most departments will only ever use a fraction of what they’re allocated.
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The sections of the columns are consistently colored on all reports using this kind of display. Over provisioned space is always drawn in orange. Snap is always red, because wasting space on snaps is bad. Unprovisioned free space is always green. Provisioned free space is always purple. The committed space is always dark blue. Used is drawn in teal.
Capacity Summary
This report gives you a summarized view of all your storage in terms of allocation. The grid will only ever have one row and the data in that row is what’s graphed in the stacked column chart at the top of the report.
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Field | What It Means |
|---|---|
Data Center | The data center for the current line of data |
Array Name | The name of the array for the current line |
Category | The category for the current line |
Application | The name of the application for this line of data |
Usable | The total usable space on the array |
Used | The amount of space used on the array expressed as a number (e.g. GiB) |
% Used | The amount of space used on the array expressed as a percentage |
Provisioned Free | The amount of provisioned free space on the array |
Un-Provisioned | The amount of un-provisioned space on the array |
Over Provisioned | The amount of over provisioned space on the array |
Allocated | The amount of allocated space on the array |
Snap | The amount of snap space consumed on the array |
Capacity Trend
| Status | ||||
|---|---|---|---|---|
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Capacity Trend shows you a trend report with your capacity numbers drawn in an area line graph. This report is deprecated in favor of newer reports and features. It will be taken out of the next major release of VSI.
Capacity Planning by Data Center
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