H3C UniServer B5800 G3, User Manual, Page: 20 / 78

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Replacing hardware options
If you are replacing multiple hardware options, read their replacement procedures and identify
similar steps to streamline the entire replacement procedure.
Replacing a SAS/SATA drive
To configure RAID settings after the drive is replaced, see the storage controller user guide for the
server.
Guidelines
The drives are hot swappable. If you hot swap an HDD repeatedly within 30 seconds, the system
might fail to identify the drive.
If you are using the drives to create a RAID, follow these restrictions and guidelines:
•
To avoid degraded RAID performance or RAID creation failures, make sure all drives in the
RAID are the same type (HDDs or SSDs) and have the same connector type (SAS or SATA).
•
For efficient use of storage, use drives that have the same capacity to build a RAID. If the drives
have different capacities, the lowest capacity is used across all drives in the RAID.
•
If one drive is used by several logical drives, RAID performance might be affected and
maintenance complexities will increase.
•
If the installed drive contains RAID information, you must clear the information before
configuring RAID. As a best practice, install drives that do not contain RAID information.
Prerequisites
Take the following ESD prevention measures:
•
Wear antistatic clothing.
•
Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
•
Do not wear any conductive objects, such as jewelry or watches.
To replace a drive that is installed with an operating system and is not configured with a RAID or is in
a non-redundancy array, back up data, stop all services, and power off the blade server. For more
information, see "
Powering off the blade server ."
When you replace a component, examine the slot and connector for damages. Make sure the pins
are not damaged (bent for example) and do not contain any foreign objects.
You might also remove other components. For the removed components to be reinstalled correctly,
record their positions and connections before removal, for example, taking pictures of cable
connection and drive installation positions, or labeling cables.
Identify the position of the drive to be replaced.
Identify the RAID array information of the drive to be replaced. To replace a drive that is not
configured with a RAID, back up all data if the old drive is full or the new drive is of a different model.
Removing a SAS/SATA drive
1. Remove the drive: