Dell PowerVault MD3820f - Manual (Page 124)

Secure Disk Pools
You can create a secure disk pool from security capable physical disks. The physical disks in a secure disk
pool become security enabled. Read access from and write access to the physical disks is only available
through a RAID controller module that is configured with the correct security key.
CAUTION: Possible loss of data access – When a disk pool is secured, the only way to remove
security is to delete disk pool. Deleting the disk pool deletes all of the data in the virtual disks that
comprise the disk pool.
Whenever the power is turned off and turned on again, all of the security-enabled physical disks change
to Security Locked status. In this status, the data is inaccessible until the correct security key is provided
by a RAID controller module. You can view the Physical Disk Security status of any disk pool in the
storage array from the Disk Pool Properties dialog. The following status information is reported:
• Security Capable
• Secure
The following table provides a description of the security properties status of a disk pool.
Table 6. Security Properties Status of a Disk Pool
Security Capable – Yes Security Capable – No
Secure – Yes The disk pool is composed of all SED
physical disks and is in Secure status. Not applicable. Only SED physical disks can
be in Secure status.
Secure – No The disk pool is composed of all SED
physical disks and is in Non-Secure
status. The disk pool is not entirely composed of
SED physical disks.
The Secure Physical Disks option is displayed in the Disk Pool menu. The Secure Physical Disks option is
active if these conditions are true:
• The selected storage array is not security enabled but is comprised entirely of security capable
physical disks.
• The storage array contains no snapshot copy base virtual disks or snapshot repository virtual disks.
• The disk pool is in Optimal status.
• A security key is set up for the storage array.
The Secure Physical Disks option is inactive if the above conditions are not true. The Secure Physical
Disks option is inactive with a check mark to the left if the disk pool is already security enabled.
The Create a secure disk pool option is displayed in the Create Disk Pool - Disk Pool Name and Physical
Disk Selection dialog. The Create a secure disk pool option is active only when the following conditions
are met:
• The Physical Disk Security feature is activated.
• A security key is installed in the storage array.
• At least one security capable physical disk is installed in the storage array.
• All of the physical disks that you selected on the Hardware tab are security capable physical disks.
Changing Capacity On Existing Thin Virtual Disks
If the amount of space used by the host for read/write operations (sometimes called consumed capacity)
exceeds the amount of physical capacity allocated on a standard virtual disk, the storage array cannot
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