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Huawei V2 and V3 Server RAID Controller Card User Guide 36

This document describes the appearances and features of the redundant array of independent disks (RAID) controller cards, how to configure properties for the RAID controller cards, and how to install drivers. The RAID controller cards include the LSI SAS2208, LSI SAS2308, LSI SAS3008, LSI SAS3108, LSI SoftRAID, PM8060, and PM8068.
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RAID 60 is a combination of RAID 6 and RAID 0. RAID 0 allows data to be striped and written to multiple drives simultaneously. RAID 6 ensures data security by using two parity blocks distributed evenly on drives.

Troubleshooting Process

In Figure A-31, PA and QA are respectively the first and second parity information of A0, A1, and A2; PB and QB are respectively the first and second parity information of B0, B1, and B2; and so on.

As a combination of RAID 6 and RAID 0, a RAID 60 array consists of multiple RAID 6 spans, where data is stored and accessed in RAID 0 mode. RAID 6 ensures continued operation and rapid data restoration if two member drives are faulty in each span. In addition, the replacement of member drives does not affect services.

Figure A-31 RAID 60 data processing
Updated: 2019-11-01

Document ID: EDOC1000004186

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