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Contents

Safety notices .................................v

SAS RAID controllers for IBM i ..........................1

SAS RAID controllers for IBM i .............................1

Feature comparison of SAS RAID cards .........................2

PCI-X SAS RAID card comparison ..........................2

PCIe SAS RAID card comparison ..........................5

PCIe2 SAS RAID card comparison..........................10

PCIe3 SAS RAID card comparison..........................13

SAS architecture .................................14

Disk arrays ..................................15

Supported RAID levels .............................16

RAID 5 ..................................16

RAID 6 ..................................17

System mirroring ..............................18

Disk array capacities ..............................18

RAID level summary ..............................18

Controller software .................................19

Verifying the controller software ...........................19

Common controller and disk array management tasks .....................20

Viewing IBM SAS disk information ..........................21

Considerations for solid-state drives ..........................21

Dual storage IOA configurations ............................22

Possible disk storage IOA configurations ........................22

Dual storage IOA functions .............................23

Dual storage IOA function attributes ..........................25

Viewing dual storage IOA attributes ..........................25

SAS cabling considerations .............................27

Performance considerations .............................28

Dual storage IOA access optimization .........................28

Installing dual storage IOA configurations ........................30

SAS RAID controller maintenance ............................31

Rechargeable battery maintenance ...........................32

Displaying rechargeable battery information ......................32

Error state ..................................34

Forcing a rechargeable battery error .........................34

Replacing a battery pack ..............................35

Replacing a 572B nonconcurrent maintainable battery pack .................36

Replacing a 572F/575C card set concurrent maintainable battery pack ..............38

Replacing a 574E concurrent maintainable battery pack...................39

Replacing a 57B7 concurrent maintainable battery pack...................40

Replacing a 57CF cache battery pack .........................41

Removing and replacing a cache battery pack ......................42

Separating the 572F/575C card set and moving the cache directory card ..............44

Replacing an SSD module on the PCIe RAID and SSD SAS adapter ..............48

Viewing SAS fabric path information ..........................51

Example: Using SAS fabric path information .......................53

SAS address and physical location information .......................55

Notices ...................................59

Trademarks ...................................60

Electronic emission notices ..............................60

Class A Notices .................................60

Class B Notices .................................64

Terms and conditions ................................67

Brand	IBM
Model	SAS RAID controllers
Category	Power Supply
Language	English

IBM SAS RAID controllers User Manual

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IBM SAS RAID controllers Specifications

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