Alerting when one path is available, Moving a managed disk – Dell Compellent Series 40 User Manual
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Managing Disks
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Spare: A disk that is used for redundancy.
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Type: Object type is Disk.
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Enclosure: Enclosures are installed and numbered starting at the bottom of a rack.
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Classification: Type of disk, such as 7K, 10K, 15K, and SSD.
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Status: Up or Down.
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Health: Healthy or Unhealthy.
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Path Alert: Either none or alert text, such as: “Disk 5 only one path to device.”
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Actual Capacity, Free Space, and Manufacturer Capacity.
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Vendor, Product, Revision, Vendor Spec, and Serial Number.
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Block Count: Total, Unallocated, System Allocated, User Allocated, and Bad.
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Disk Statistics: Number of Read requests, blocks and errors; Number of Write
requests, blocks, and errors.
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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
.
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.