Configuring Disk Array Enclosure

After you add Node, you are redirected to the Node page.

When there is no Disk Array attached to the Node, the following page appears. Ensure that you attach a Disk Array to the Node and then click Refresh Hardware.

Note: When you attach a new Disk Array to a Node, click Refresh Storage/Refresh Hardware to make it visible on the ElastiCenter.

Disk_Array_Enclosure

To configure a newly attached Disk Array enclosure, follow the procedures:

  1. In the Node page, click the image in the section Shared Storage.

config_disk_array_enclosure_1

The following screen appears:

config_disk_array_enclosure_2

  1. Click Specify Disk Array Configuration. The Disk Array Configuration page appears:

config_disk_array_enclosure_3

  1. Specify the Name, Bay Alignment, Number of columns and Number of Rows. For details, see the following section Configuration details.
  2. Click Next and do the following:
      • Click the option under the column Blink. For details, see the section SCSI Enclosure Service at the bottom of this page.
      • Specify the bay location for the disks from the drop down list under the column Bay.

    config_disk_array_enclosure_4

  3. Click Apply. On successful configuration, the Node page appears with a representation of the shared storage:disk_array_enclosure_configuring
Note: You can also partially configure a Disk Array Enclosure. Suppose you have 12 disks, you can initially configure around 8 disks and other 4 disks can be configured as per the requirement.

Configuration details

Horizontal and vertical alignments

The Disk Arrays can be idealized either in terms of horizontal or vertical alignments.

The following figure represents a vertical alignment:


JBod-VerticalAlignment

The following figure represents a horizontal alignment:

JBod-Horizontal

Slots per row

Slots per row is the number of disks each row can accommodate. For example, three slots per row implies that a single row can accommodate three disks.

JBod-SingleRow JBod-SingleRow

 

SCSI Enclosure Service

SCSI Enclosure Service (SES) helps monitor the status of each device in a disk array enclosure such as disk slots, fans, heat sinks, or power supplies.

The service helps you

  • Identify a disk or verify the slot in which the disk is located.
  • Locate and disable a faulty disk.
  • With specific and general alerts on enclosure components.

Blink identification

Blink identification LED on the disk slot of a disk array. When you click Blink, at the physical location of the disks, the identification LED in the specified disk slot blinks. If the disk is not in the SCSI enclosure, the LED blink does not occur.

If the disk is in the SCSI enclosure and still if the blink does not occur, verify the health of the disk.

Enclosure component alerts

CloudByte ElastiStor provides common and specific alerts for the enclosure components such as disk slots, power supplies, voltage sensors, current sensors, temperature sensors, fans, and audible alarm.

The common alerts which apply to all components include the ones related to

  • Removal and installation of the component
  • State in which the component is, such as critical, non-critical, OK, or unrecoverable

Specific alerts are generated for the following enclosure components: power supply, voltage sensor, current sensor, and temperature sensor.

By default, CloudByte sends alerts over mail to the email you specified when you updated your profile the first time you logged in to CloudByte ElastiCenter. For details, see “Reset password and configure auto-alert options”.

To expand the mailing list, add the IDs separated by comma in the Global settings (Information Pane > Admin > Global Settings > alert.email.addresses).

To view alerts in CloudByte ElastiCenter, click Alerts in the information pane.

Deleting a Disk Array

  1. Delete all Pools in the Disk Array.
  2. In the HA Groups page, select the HA group from which Disk Array has to be deleted.
  3. For the Disk Array to be deleted, click Manage Disk Array and then click the delete icon.