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Recovering from Hard Drive Failure
84 MSA1000 Reference Guide
Automatic Data Recovery
Automatic Data Recovery is an automatic background process that rebuilds data
onto a spare or replacement drive when another drive in the array fails. The hard
drive that is being rebuilt blinks once per second.
If a drive in a fault-tolerant configuration is replaced while the system power is
off, a front-panel display message will be displayed during the next system
startup. Automatic Data Recovery will be started.
When Automatic Data Recovery is completed, the online indicator of the
replacement drive will stop blinking and begin to glow steadily.
In general, approximately 15 minutes is required to rebuild each gigabyte. The
actual rebuild time depends upon:
■ The rebuild priority level (high or low) of the logical drive
■ The amount of I/O activity occurring during the rebuild operation
■ The disk drive speed
■ The number of drives in the array (for RAID 5 and RAID ADG)
Failure of Automatic Data Recovery
If the online indicator of the replacement drive stops blinking during Automatic
Data Recovery, there are two possible causes:
■ The replacement drive is failed (amber failure indicator illuminated or other
indicators go out) and is producing unrecoverable disk errors. Remove and
replace the failed replacement drive.
■ The Automatic Data Recovery process may have abnormally terminated, due
to a non-correctable read error (such as a SCSI bus signal integrity problem)
from another physical drive during the recovery process.
Reboot the system and retry Automatic Data Recovery. If this does not work,
backup all data on the system, do a surface analysis (using User Diagnostics), and
restore the data from backup.
- Modular Smart Array 1000 1
- (MSA1000) 1
- Part Number: 347280-001 2
- Contents 3
- 4 MSA1000 Reference Guide 4
- 5MSA1000 Reference Guide 5
- 6 MSA1000 Reference Guide 6
- About This 7
- Overview 8
- Conventions 9
- Text Symbols 10
- Equipment Symbols 10
- About this Guide 11
- MSA1000 Reference Guide 11
- Rack Stability 12
- Getting Help 12
- HP Website 13
- HP Authorized Reseller 13
- 14 MSA1000 Reference Guide 14
- Introduction 15
- About the MSA1000 16
- Features of the MSA1000 17
- Supported Software Components 18
- Front View of the MSA1000 19
- Rear View of the MSA1000 20
- Hot-Pluggability 21
- System Power 22
- Maximum Storage 22
- SCSI ID Assignments 22
- MSA1000 Hardware Components 23
- MSA1000 Controller Display 24
- Array Accelerator Features: 25
- 26 MSA1000 Reference Guide 26
- Array Configuration 27
- 28 MSA1000 Reference Guide 28
- 29MSA1000 Reference Guide 29
- 30 MSA1000 Reference Guide 30
- Fibre Channel I/O Module 31
- MSA SAN Switch 2/8 32
- MSA Hub 2/3 33
- MSA1000 Software Components 34
- Command Line Interface 35
- Insight Manager 7 35
- System Event Analyzer (SEA) 36
- Operation and Management 37
- Connecting the Power 38
- Applying Power 39
- 1 0 16234567 40
- 9 8 17101112131415 40
- 41MSA1000 Reference Guide 41
- Enclosure Status Indicators 42
- 43MSA1000 Reference Guide 43
- 44 MSA1000 Reference Guide 44
- 1 SCSI I/O Module 44
- Hard Drive Indicators 45
- 46 MSA1000 Reference Guide 46
- 47MSA1000 Reference Guide 47
- 48 MSA1000 Reference Guide 48
- Replacing Components 49
- 50 MSA1000 Reference Guide 50
- 51MSA1000 Reference Guide 51
- Replacing a Power Supply 52
- 53MSA1000 Reference Guide 53
- seated in the enclosure 53
- Replacing a SCSI I/O Module 54
- 6. Reconnect the SCSI cables 55
- Replacing Hard Drives 56
- 57MSA1000 Reference Guide 57
- 58 MSA1000 Reference Guide 58
- 59MSA1000 Reference Guide 59
- 60 MSA1000 Reference Guide 60
- 61MSA1000 Reference Guide 61
- 62 MSA1000 Reference Guide 62
- 63MSA1000 Reference Guide 63
- Replacing the MSA Hub 2/3 64
- To install the MSA Hub 2/3: 65
- 66 MSA1000 Reference Guide 66
- , for the most 67
- 68 MSA1000 Reference Guide 68
- 69MSA1000 Reference Guide 69
- 70 MSA1000 Reference Guide 70
- Regulatory Compliance 71
- European Union Notice 72
- Japanese Notice 72
- BSMI Notice 73
- Laser Compliance 73
- Battery Replacement Notice 74
- Electrostatic Discharge 75
- Grounding Methods 76
- Specifications 77
- 78 MSA1000 Reference Guide 78
- Recovering from Hard Drive 79
- Hard Drive Failure 80
- Recognizing Drive Failure 81
- Compromised Fault Tolerance 82
- Procedure to Attempt Recovery 83
- Automatic Data Recovery 84
- Replacing a Drive 85
- 86 MSA1000 Reference Guide 86
- 87MSA1000 Reference Guide 87
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- 89MSA1000 Reference Guide 89
- 90 MSA1000 Reference Guide 90
- Recovery ROM and ROM 91
- ROM Cloning 92
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- 102 MSA1000 Reference Guide 102
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