NEC Express5800/R110f-1E User Manual Page 120
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- TROUBLESHOOTING
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If you continue to use the RAID System with lost redundancy of a Logical Drive and another Physical Device is failed further, the redundancy of the Logical Drive is lost completely
(two or more Physical Devices of RAID Level 1 or 5 is failed, three or more Physical Devices of RAID Level 6 is failed). The status of a Logical Drive without redundancy is offline
(with its [Status] being [Offline]). The data in a Logical Drive in the offline status is lost. Replace all failed Physical Devices and Rebuild the RAID System.
120
Operation when the Logical Drive is offline due to failure of Physical Device
Figure 2
7 Display of RAID Viewer / raidcmd (Under lost redundancy of Logical Drive)
Become [Fatal] by
existence of
[Offline] node.
> raidcmd property -tg=ld -c=1 -l=1
RAID Controller #1 Logical Drive #1
ID : 0
Disk Array Information : 1 (order 1/1)
RAID Level : RAID 5
Capacity : 20GB
Stripe Size : 64KB
Cache Mode (Setting) : Write Back
Cache Mode (Current) : Write Back
Type : Logical Drive
Status : Offline
>
Structure and Status of RAID System
Tree View of RAID Viewe
r
Property of RAID Viewe
r
Property of raidcmd
Logical Drive
[Offline]
> ra 52s3idcmd property -tg=pd -c=1 -p= e2
RAID 52s3 Controller #1 Physical Device e2
Enclosure : 252
Enclosure Position : Internal
Slot : 3
ID : 20
Device Type : HDD
Interface : SAS
Vend ST936701SS or/Model : SEAGATE
Firm are Version : 0003 w
Serial Number : 3LC05RDP
Capacity : 33GB
Status : Failed
S.M.A.R.T. : Normal
Powe
r Status : On
>
e252s2
[Online]
e252s3
[Failed]
e252s4
[Failed]
#1 [Offline]
RAID Level: 5
T
wo failed Physical
Devices
[Failed]
Vend
or/Model : SEAGATE ST936701SS
> raidcmd property -tg=pd -c=1 -p=e252s4
RAID Controller #1 Physical Device e252s4
Enclosure : 252
Enclosure Position : Internal
Serial Number : 3LC05ZZG
Status : Failed
S.M.A.R.T. : Normal
Firmware Version : 0003
Capacity : 33GB
Slot : 4
ID : 21
Device Type : HDD
Interface : SAS
Power Status : On
>
- Universal RAID Utility 1
- User's Guide 1
- Introduction 4
- Contents 5
- Overview 9
- System requirements 12
- Software (Linux) 13
- Software (VMware ESX) 13
- Resources 14
- Installation image 16
- Installation (Windows) 19
- Uninstallation (Windows) 22
- Log Viewer 31
- Standard and Advanced Modes 33
- Functions of RAID Viewer 35
- RAID Controller 36
- Battery 37
- Flash Backup Unit 37
- Disk Array 37
- SSD Cache Disk Array 38
- SSD Cache Drive 39
- Shortcut Menu 40
- Operation View 41
- Menu Bar 42
- Status Bar 44
- Functions of Log Viewer 45
- Log View 46
- Functions of raidcmd 48
- RAID System Configuration 49
- Configuration of RAID System 61
- Making Hot Spare 62
- About Dedicated Hot Spare 63
- Making Global Hot Spare 64
- Making Dedicated Hot Spare 65
- Removing Hot Spare 66
- Capacity of Logical Drive 73
- Items set for Logical Drive 73
- Number of Hot Spares 74
- Modes of Hot Spares 75
- Mode" 76
- Deleting Logical Drive 84
- Using CacheCade 85
- Capacity of SSD Cache Drive 87
- Deleting SSD Cache Drive 88
- Maintenance of RAID System 89
- Setting Patrol Read Priority 90
- Stopping Consistency Check 93
- Initializing Logical Drive 95
- Stopping Initialize 96
- Setting Initialize Priority 97
- Setting cache mode 98
- Rebuilding Physical Device 99
- Stopping Rebuild 100
- Setting Rebuild Priority 101
- Setting Power Saving Devices 102
- Setting Device Standby Time 103
- RAID Viewer 105
- To Online Forcibly 106
- To Failed Forcibly 107
- Scheduling Refresh Battery 110
- Troubleshooting RAID System 111
- Failure Detection Measures 112
- Windows 113
- Buzzer in RAID Controller 114
- Physical Device 117
- [Online] 117
- Logical Drive 117
- Monitoring Battery Status 121
- Monitoring Enclosure Status 123
- ESMPRO Manager 125
- Using ExpressUpdate 127
- Utility 128
- Avoiding TCP port conflict 129
- Operation Environment 131
- OS Fatal Error Event 132
- RAID Viewer, Log Viewer 133
- Log Rotation 134
- NEC ESMPRO Manager 135
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