# Viewing Virtual Drive Properties

Select a virtual drive from a drive group in the Controller dashboard to view its properties.

Figure 1. Virtual Drive Properties Window

Table 1. Virtual Drive Properties
Property | Description | MegaRAID | iMegaRAID | SoftwareRAID | Initiator- Target
--- | --- | --- | --- | --- | ---
Status | The current status of the virtual drive. These options are available: Optimal Partially Degraded Degraded Offline | Yes | Yes | Yes | No
Current Read Cache Status | The read cache policy for the virtual drive. These options are available: Read Ahead No Read Ahead | Yes | Yes | Yes | No
Current Write Cache Status | The write cache policy for the virtual drive. These are available: Write Back Write Through Always Write Back | Yes | Yes | Yes | No
Current IO Status | The input/output policy for the virtual drive. These options are available: Direct IO Cached IO | Yes | Yes | Yes | No
Host Access Policy Note: This property appears only if the controller supports High Availability DAS. | Indicates whether the virtual drive is shared between the servers in a cluster. The values for this property are Shared, Exclusive, and Exclusive to Peer Controller. | No | No | No | No
Peer Has No Access Note: This property appears only if the controller supports High Availability DAS. | Indicates whether the peer controller has access to the shared virtual drive. This property appears only if the virtual drive is shared. | No | No | No | No
Access Policy | The access policy for the virtual drive. These options are available: Read Write Read Only Hidden The Hidden policy is applicable for only hidden virtual drives. No other access policies are applicable after you select Hidden as the access policy. | Yes | Yes | No | No
Drive Cache | The virtual drive cache setting. These options are available: Unchanged Enable Disable | Yes | Yes | Yes | No
Data Protection | Indicates whether data protection feature is enabled for the virtual drive. | Yes | Yes | Yes | No
SSD Caching | Indicates whether SSD caching is enabled. | Yes | Yes | No | No
Default Write Cache Policy | Write Through Write Back Always Write Back |  |  |  |
Default Read Cache Policy | Read Ahead No Read Ahead |  |  |  |
Default IO Policy | Direct IO Cached IO |  |  |  |

1 Write cache of the LUN is not supported by all target enclosures. Refer your enclosure's documentation to determine whether Write Cache is supported on your device.