Dell OpenManage Server Administrator Version 6.5 Manual de usuario Pagina 41
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Drop-down Menu Battery Tasks:
l Recondition Battery
l Start Learn Cycle
l Battery Delay Learn Cycle
Recondition Battery
Does my controller support this feature? See Supported Features.
Some controllers have NiMHi batteries which need to be reconditioned approximately every six months to maintain reliability. This reconditioning cycle requires
a full discharge and recharge of the battery. It ensures that the battery's capacity is being measured correctly and that the battery's full holdover time is
maintained. For more information, see RAID Controller Batteries.
The controller battery should be reconditioned when either of the following occurs:
l The controller reports the battery state as Degraded. For more information on the battery state, see Battery Properties.
l The controller generates event 2145 indicating that the battery needs reconditioning.
For information on Alert Messages, see the Dell OpenManage Server Administrator Messages Reference Guide at support.dell.com/manuals.
The battery recondition takes approximately 8 to 10 hours. During this time, the battery is fully discharged and recharged. The battery holdover time is
reduced to zero (during discharge) and then restored as the battery is fully charged. The write cache is disabled during the battery recondition resulting in
performance degradation.
To recondition the controller battery:
1. Expand the Storage tree object to display the controller objects.
2. Expand the controller object.
3. Select the Battery object.
4. Select Recondition Battery from the Available Tasks drop-down menu.
5. Click Execute.
Related information:
l Battery Properties
Start Learn Cycle
Does my controller support this feature? See Supported Features.
Use the Start Learn Cycle task to initiate the battery learn cycle.
The battery learn cycle discharges and then fully charges the controller battery.
The Learn cycle recalibrates the battery integrated circuit so that the controller can determine whether the battery can maintain the controller cache for the
prescribed period of time in the event of a power loss. For example, some controller batteries are required to maintain the controller cache for 72 hours.
While the Learn cycle is in progress, the battery may not be able to maintain the cache during a power loss. If the controller is using write-back cache policy,
then the controller changes to write-through cache policy until the Learn cycle completes. The write-through cache policy writes the data directly to the disk
and reduces the risk that data can be lost in the cache if there is a power loss.
The controller firmware automatically initiates the Learn cycle every 90 days. You can, however, delay the start time of the Learn cycle for a further seven
days, after which the firmware automatically initiates the Learn cycle. For more information, see Battery Delay Learn Cycle.
NOTE: The Recondition Battery task is only available on controllers with NiMHi batteries that are in Degraded state or that have generated alert 2145.
For information on Alert Messages, see the Dell OpenManage Server Administrator Messages Reference Guide at support.dell.com/manuals. Some
controllers do not have batteries. Other controllers have lithium ion batteries which are automatically reconditioned and therefore do not have a
recondition task in Storage Management.
NOTE: If you have set the controller to write-back force cache policy, then the cache policy is not changed during the Learn cycle. When using write-back
force cache policy, it is possible for data loss to occur if there is a power loss while the Learn cycle is in progress.
NOTE: The Learn cycle cannot be performed while the battery is charging. If either a user or the controller firmware initiate the Learn cycle while the
battery is charging, then the battery Learn State displays Requested. When the battery is fully charged, the Learn cycle begins.
- Notes and Cautions 1
- Supported Features 2
- Battery Tasks 10
- Connector Tasks 10
- Physical Disk Tasks 10
- Virtual Disk Tasks 10
- Virtual Disk Specifications 11
- Supported RAID Levels 11
- Enclosure Support 12
- Controller Tasks 13
- Permanently Degraded 26
- Rebuilding 27
- Physical Disks 30
- Other Disk Procedures 31
- Physical Disk Properties 32
- Remove Dead Segments 35
- Prepare to Remove 35
- Initialize 35
- Rebuild 35
- Cancel Rebuild 35
- Online and Offline 36
- Revertible Hot Spare 37
- Instant Encrypt Erase 38
- RAID Controller Batteries 39
- Battery Delay Learn Cycle 42
- BIOS Terminology 43
- Connectors 44
- Connector Health 45
- Connector Properties 46
- Back to Contents Page 48
- Controllers 49
- RAID Controller Features 50
- Read Policy 51
- Write Policy 51
- Cache Policy 51
- Disk Cache Policy 52
- Firmware/Driver Versions 54
- Controller Health 54
- Controller Components 55
- Controller Properties 55
- Available Reports 57
- Set Rebuild Rate 59
- Reset Configuration 60
- Export Log 61
- Set Check Consistency Rate 67
- Set Reconstruct Rate 67
- Set Patrol Read Mode 69
- Start and Stop Patrol Read 70
- Manage Physical Disk Power 72
- Manage Preserved Cache 72
- Manage Encryption Key 72
- Encryption Key 73
- Enabling LKM 73
- Patrol Read Report 74
- Check Consistency Report 74
- Slot Occupancy Report 75
- Manage CacheCade 76
- Resizing the CacheCade 77
- Renaming the CacheCade 77
- Deleting the CacheCade 77
- CacheCade Properties 77
- Enclosures and Backplanes 79
- SMART Thermal Shutdown 80
- Enclosure Management 81
- Enclosure Tasks 83
- Set Asset Data 85
- View Slot Occupancy Report 87
- EMM Properties 87
- Fan Properties 88
- Power Supply Properties 88
- Related information: 92
- Getting Started 93
- Displaying the Online Help 94
- Common Storage Tasks 94
- Understanding Hot Spares 96
- 4e/Si, and 4e/Di Controllers 98
- Required Conditions 100
- Moving the Disks 101
- Overview 102
- Supported Controllers 103
- Supported Enclosures 104
- Storage Health 105
- Select Report 105
- Storage Component Severity 105
- Alerts or Events 106
- Related Information: 107
- Storage Properties 109
- Global Tasks 109
- Storage Controllers 110
- Storage Components 111
- What Is RAID? 112
- Concatenation 113
- RAID Level 0 (Striping) 114
- RAID Level 1 (Mirroring) 115
- RAID 5 Characteristics: 116
- RAID 6 Characteristics: 117
- RAID 50 Characteristics: 117
- RAID 60 Characteristics: 118
- RAID 10 Characteristics: 119
- No-RAID 121
- Troubleshooting 122
- Replacing a Failed Disk 123
- A Rebuild Does Not Work 125
- Redundant Virtual Disks 126
- Virtual Disks 130
- SATA1.5/2s Controllers 131
- Creating Virtual Disks 132
- Expansion 133
- Controllers 134
- Recommendations 135
- Virtual Disk Properties 135
- Connector 0 144
- Physical Disks Selected 144
- Span Edit 145
- Considerations for Format 148
- Virtual Disk Task: Delete 149
- Virtual Disk Task: Rename 150
- Split Mirror 151
- Unmirror 151
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