c. To see the settings for the E2800 controller, select Controller A and select View settings
from the context menu.
d. To see the setting for other components in the back of the shelf, select the component you
want to view.
e. Click Show front of shelf, and select the component you want to view.
From the front of the shelf, you can view the drives and the five drive drawers for the
SG5760.
If the status of any component is Needs Attention, follow the steps in the Recovery Guru to
resolve the issue or contact technical support.
Optional: Changing the RAID mode (SG5760 only)
If you have an SG5760 with 60 drives, you can change to a different RAID mode to accommodate
your storage and recovery requirements. You can only change the mode before deploying the
StorageGRID appliance Storage Node.
Before you begin
•
You have an SG5760. If you have an SG5712, you must use DDP mode.
•
You are using any client that can connect to StorageGRID.
•
The client has a supported web browser.
About this task
Before deploying the SG5760 appliance as a Storage Node, you can choose one of the following
volume configuration options:
•
DDP: This mode uses two parity drives for every eight data drives. This is the default and
recommended mode for all appliances. When compared to RAID6, DDP delivers better system
performance, reduced rebuild times after drive failures, and ease of management. DDP also
provides drawer loss protection in 60-drive appliances.
•
DDP16: This mode uses two parity drives for every 16 data drives, which results in higher
storage efficiency compared to DDP. When compared to RAID6, DDP16 delivers better system
performance, reduced rebuild times after drive failures, ease of management, and comparable
storage efficiency. To use DDP16 mode, your configuration must contain at least 20 drives.
DDP16 does not provide drawer loss protection.
•
RAID6: This mode uses two parity drives for every 16 or more data drives. To use RAID 6
mode, your configuration must contain at least 20 drives. Although RAID6 can increase
storage efficiency of the appliance when compared to DDP, it is not recommended for most
StorageGRID environments.
Attention: If any volumes have already been configured
or if StorageGRID was previously installed, changing the
RAID mode causes the volumes to be removed and
replaced. Any data on those volumes will be lost.
Steps
1. Using the service laptop, open a web browser and access the StorageGRID Appliance Installer:
https://E5700SG_Controller_IP:8443
E5700SG_Controller_IP
is any of the IP addresses for the E5700SG controller.
2. From the menu bar, select Advanced > RAID Mode.
3. On the Configure RAID Mode page, select the desired RAID mode from the Mode drop-
down list.
4. Click Save.
Hardware Installation and Maintenance Guide for SG5700 Appliances
53
Configuring the hardware
