Dell PowerVault DP600 Bedienungsanleitung PDF herunterladen (Seite 9)

Recovering From Disk Failures 9

Recovering from Disk Failures

Your system's internal disk storage has been pre-configured as RAID 5.

Additionally, as described in the Dell PowerVault Data Protection Solution

Storage Expansion Guide, any additional disks you add to your system will be

configured as RAID 5.

RAID 5 provides uninterrupted operation of your system in the event a single

disk drive in the group fails. However, until the failed disk drive has been

replaced, your system will operate in degraded state. During this degraded

state, another disk failure within the same RAID group will cause loss of all

data in that RAID group. Therefore, it is extremely important to monitor the

status of your system's disks and to replace any failed disk within the same

RAID group as quickly as possible.

Detecting and Monitoring Disk Failures

To optimize the protection of RAID 5-configured storage on your system, it is

essential that you are able to detect hard drive failures immediately as they

occur. Replacing failed disks as soon as possible reduces the risk of unplanned

downtime and loss of critical data.

The following methods can be used to monitor the health of your system's

physical disks.

RAID Adapter Audible Alarm

Refer to the "Enabling the Alarm to Alert in Case of Physical Disk Failures"

section of the Dell™ PowerEdge™ Expandable RAID Controller (PERC) User's

Guide for more information on how to configure the audible alarm. Note that

this feature is not available on all PERC adapters. Refer to your specific

PERC adapter documentation to determine whether this feature is

supported.

OpenManage™ Server Administrator

Dell™ OpenManage™ Server Administrator (OMSA) can monitor the health

of both internal and external disks. Refer to "Replacing Disks" in this chapter

for more information.

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Dell PowerVault DP600 Bedienungsanleitung Seite 9