Dell Compellent Series 30 User Manual download pdf (Page 135)

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Managing Disks

• Spare: A disk that is used for redundancy.

• Type: Object type is Disk.

• Enclosure: Enclosures are installed and numbered starting at the bottom of a rack.

• Classification: Type of disk, such as 7K, 10K, 15K, and SSD.

• Status: Up or Down.

• Health: Healthy or Unhealthy.

• Path Alert: Either none or alert text, such as: “Disk 5 only one path to device.”

• Actual Capacity, Free Space, and Manufacturer Capacity.

• Vendor, Product, Revision, Vendor Spec, and Serial Number.

• Block Count: Total, Unallocated, System Allocated, User Allocated, and Bad.

• Disk Statistics: Number of Read requests, blocks and errors; Number of Write

requests, blocks, and errors.

• Date Detected: The date and time the system detected the disk. Date Updated: Date

and time a user last modified or managed the disk.

Note To classify a disk as an external device, refer to Classify Disk as External Device on

page 133.

Alerting When One Path is Available

By default, disks have two paths to the controller. If one path is disconnected, a port fails,

or a path is mis-cabled, the controller has only one path to the disk. This is a single point of

failure. Make sure you are alerted if only one path remains to a disk. However, if you are

reconfiguring a system and deliberately changing paths, you may not need an alert for all

disks with one path.

 To set a path disconnected alert

1 In the system tree, select a disk.

1 From the shortcut menu, select Properties. The system displays the Disk Properties

window for that disk. In the Disk Properties window, select or clear Alert When Only

One Path is Available.

2 In the Info tab, enter any notes (up to 255 characters).

3 Click OK.

Moving a Managed Disk

Never move managed disks without direct Dell Support Services intervention.

When one or more disks are moved out of a folder, data in the folder is restriped on the

remaining disks. For this reason, you cannot move disks out of a folder unless the

remaining disks have enough free space to accommodate re-striping the data. Also, for this

command to appear, you must have a second disk folder to move the disks to.

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Dell Compellent Series 30 User Manual Page 135