Tandberg DataRAID configuraion
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3.1.1.System Volume (SV)
This volume is organized as a RAID 0+1 volume. This volume includes the operating system image (Windows® Storage Server 2003). The minimum recommended size for this volume is 10 GB (default). The RAID level can be customized using the RAID controller BIOS or
3.1.2.Data Volume (DV)
The remaining hard drives space can be organized as the Data Volume using RAID 5 or other RAID level definable by user. For a
3.2.RAID Volume Calculation
Depending on the hard drive capacity, the System Volume and Data Volume capacity can have different capacity sizes. A simple formula to calculate Data Volume size (DV) per RAID level is shown in the table below (where SV is the size of the System Volume in gigabytes) based on Tandberg Data’s recommended settings:
RAID Level | Formula |
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5 | DV = {[(Per HDD capacity × 4) – 2 × SV] ÷ 4} × 3 |
0+1 | DV = {[(Per HDD capacity × 4) – 2 × SV] ÷ 4} × 2 |
0 | DV = (Per HDD capacity × 4) – 2 × SV |
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Refer to the following table for changing the Data Volume of your hard drive or changing the default configuration setting according to your Data Volume size preference:
HDD Capacity | System | Data Volume | Data Volume | Data Volume |
(GB) | Volume (GB) | RAID 5 (GB) | RAID10 (GB) | RAID 0 (GB) |
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500 | 10 | 1485 | 990 | 1980 |
250 | 10 | 735 | 490 | 980 |
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