Dell 341-4161 User Guide - Page 45

Running a Patrol Read

Get Dell 341-4161 - PERC 5/i SAS PCI Express Internal RAID Adapter Controller PDF manuals and user guides View all Dell 341-4161 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 45 highlights

Running a Patrol Read The Dell PERC 5/i controller and the Dell PERC 6/i controller supports the patrol read feature. Patrol read provides a dynamic check on the virtual disk to confirm the disk is functioning properly. Patrol read runs in the background, adjusting its performance based on the patrol read settings and the i/o load on the controller. A patrol read can be used for all RAID levels and for all hotspare drives. To start a patrol read, follow these steps: 1 Click a controller icon in the left panel of the Dell SAS RAID Storage Manager window. 2 Select Operations -> Start Patrol Read. 3 When prompted, click Yes to confirm that you want to start a patrol read. To change the patrol read settings, follow these steps: 1 Click a controller icon in the left panel of the Dell SAS RAID Storage Manager window. 2 Select the Operations tab in the right panel, and select Set Patrol Read Properties. 3 Select an Operation Mode for patrol read. The options are: • Auto: Patrol read runs automatically at the time interval you specify on this screen. • Manual: Patrol read runs only when you manually start it by selecting Start Patrol Read from the controller Options panel. • Disabled: Patrol read does not run at all. 4 (Optional) Specify a maximum count of physical drives to include in the patrol read. The count must be between 0 and 255. 5 (Optional) Select the virtual disks on this controller that you want to exclude from the patrol read. The existing virtual disks are listed in the gray box. To exclude a virtual disk, check the box next to it. 6 (Optional) Change the frequency at which the patrol read runs (the execution frequency). The default frequency is 168 hours (7 days), which is suitable for most configurations. NOTE: Dell recommends that you leave the patrol read frequency and other patrol read settings at the default values, in order to achieve the best system performance. If you decide to change the values, record the original default value here so you can restore them later, if necessary: Monitoring System Events and Storage Devices 45

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
Monitoring System Events and Storage Devices
45
Running a Patrol Read
The Dell PERC 5/i controller and the Dell PERC 6/i controller supports the
patrol read feature. Patrol read provides a dynamic check on the virtual disk to
confirm the disk is functioning properly. Patrol read runs in the background,
adjusting its performance based on the patrol read settings and the i/o load on
the controller. A patrol read can be used for all RAID levels and for all
hotspare drives. To start a patrol read, follow these steps:
1
Click a controller icon in the left panel of the Dell SAS RAID Storage
Manager window.
2
Select
Operations -> Start Patrol Read
.
3
When prompted, click
Yes
to confirm that you want to start a patrol read.
To change the patrol read
settings, follow these steps:
1
Click a controller icon in the left panel of the Dell SAS RAID Storage
Manager window.
2
Select the
Operations
tab in the right panel, and select
Set Patrol Read
Properties
.
3
Select an
Operation Mode
for patrol read. The options are:
•
Auto
: Patrol read runs automatically at the time interval you specify on
this screen.
•
Manual
: Patrol read runs only when you manually start it by selecting
Start Patrol Read
from the controller Options panel.
•
Disabled
: Patrol read does not run at all.
4
(Optional) Specify a maximum count of physical drives to include in the
patrol read. The count must be between 0 and 255.
5
(Optional) Select the virtual disks on this controller that you want to
exclude
from the patrol read. The existing virtual disks are listed in the
gray box. To exclude a virtual disk, check the box next to it.
6
(Optional) Change the frequency at which the patrol read runs (the
execution frequency). The default frequency is 168 hours (7 days), which
is suitable for most configurations.
NOTE:
Dell recommends that you leave the patrol read frequency and other
patrol read settings at the default values, in order to achieve the best system
performance. If you decide to change the values, record the original default
value here so you can restore them later, if necessary: