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users with critical data which cannot be lost or corrupted due to the failure of a single drive.
With RAID Level 1, the host sees what it believes to be a single physical drive of a specific size: it does not know about the mirrored pair.
The ATTO FastStream VT 5300 manages where data is written and read, allowing one drive to fail without the host knowing it has failed. RAID Level 1 is used in applications containing mission critical data. The ATTO FastStream VT 5300 supports an even number of 2 to 32 drives per RAID Level 1 group.
Exhibit
RAID Level 1
Stripe | Disk 0 | Disk 1 | Disk 2 | Disk 3 | Disk 4 | Disk 5 |
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0 | D0 | D0 | D4 | D4 | D8 | D8 |
1 | D1 | D1 | D5 | D5 | D9 | D9 |
2 | D2 | D2 | D6 | D6 | D10 | D10 |
3 | D3 | D3 | D7 | D7 | D11 | D11 |
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RAID Level 10
RAID Level 10 increases data transfer rates while ensuring security by writing the exact same data simultaneously to two or more different drives.
RAID Level 10 is used in applications requiring high performance and redundancy, combining the attributes of RAID Levels 1 and 0.
The ATTO FastStream VT 5300 supports an even number of 4 to 32 drives per RAID Level 10 group.
Exhibit
RAID Level 10
Stripe | Disk 0 | Disk 1 | Disk 2 | Disk 3 | Disk 4 | Disk 5 |
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0 | D0 | D0 | D1 | D1 | D2 | D2 |
1 | D3 | D3 | D4 | D4 | D5 | D5 |
2 | D6 | D6 | D7 | D7 | D8 | D8 |
3 | D9 | D9 | D10 | D10 | D11 | D11 |
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RAID Level 5
RAID Level 5 increases reliability while using fewer drives than mirroring by employing parity redundancy. Distributed parity on multiple drives allows you to rebuild a failed drive from the remaining good drives. The ATTO FastStream VT 5300 operates in degraded mode if a drive fails.
The ATTO FastStream VT 5300 supports 3 to 32 drives per RAID Level 5 group.
Exhibit
RAID Level 5
Stripe | Disk 0 | Disk 1 | Disk 2 | Disk 3 | Disk 4 | Disk 5 |
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0 | D0 | D1 | D2 | D3 | D4 | |
1 | D6 | D7 | D8 | D9 | D5 | |
2 | D12 | D13 | D14 | D10 | D11 | |
3 | D18 | D19 | D15 | D16 | D17 | |
4 | D24 | D20 | D21 | D22 | D23 | |
5 | D25 | D26 | D27 | D28 | D29 | |
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