Will the available space in the array increase?
The available space in the array, or the capacity, may increase after a migration from RAID 0, RAID 1, or RAID 10 to RAID 5, depending on the migration being performed.
Please use the following table to determine whether there will be available capacity after migration. Any available capacity can be utilized by creating a second volume in the array.
| Migration |
Provides Additional Array Capacity |
| 2-drive RAID 0 to 3-drive RAID 5 |
NO * |
| 2-drive RAID 0 to 4-drive RAID 5 |
YES |
| 3-drive RAID 0 to 4-drive RAID 5 |
NO * |
| 2-drive RAID 1 to 3-drive RAID 5 |
YES |
| 2-drive RAID 1 to 4-drive RAID 5 |
YES |
| 4-drive RAID 10 to 4-drive RAID 5 |
YES | |
* This assumes that the RAID 0 volume utilized 100% of the original array capacity. If the RAID 0 volume utilized less than 100% of the original array capacity, there may be available space in the array after the migration completes.
Will the array size increase?
The array size will increase after migration, except when migrating from 4-drive RAID 10 to 4-drive RAID 5; in that case, the array size will remain the same.
The array size and available array capacity (Free Space) can be seen using the Intel® Matrix Storage Console. This is shown in the following example:
Will the volume size increase?
The volume size will not change during a migration from RAID 0, RAID 1, or RAID 10 to RAID 5.
How do I use the available space?
You can use the available space in the array by creating a second volume. Use the following steps to create a second volume in the array.
- Click Start » All Programs » Intel® Matrix Storage Manager » Intel® Matrix Storage Console to open the user interface.
- Click View » Advanced Mode to enter Advanced Mode.
- Click Actions » Create RAID Volume.
- Enter the RAID volume name and choose a RAID level and strip size (if applicable); click Next to continue.
- Choose the array (see the example below where Array 0 is the name of the array with available capacity) and click Next to continue.
- Click Next since the volume will utilize all available capacity.
- Click Finish to create the new RAID volume.
This applies to:
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