Understanding the Device Information |

This section displays the device information as displayed in DiskCheckup's "Device Info" window. Model Number The drives model number. Device Capacity The total capacity in MB of the device. Status Indicates that a drive is "OK" unless: a) < 10% disk space is available in any of the disk's volumes, b) Disk temperature is higher than the threshold, or c) 1 or more SMART value(s) have exceeded a threshold Device ID The physical ID of the device. Interface The interface used to communicate with the drive. Serial Number The drive serial number. Firmware Rev The drives current firmware revision. Partitions Displays all the volumes that reside on this device and their capacity in MB. Current Disk Activity Displays the values of real-time disk performance counters that are refreshed periodically Disk Read (MB/s) The current disk read speed in megabytes per second Disk Write (MB/s) The current disk write speed in megabytes per second Disk Total (MB/s) The current total disk transfer speed (ie. read + write) in megabytes per second % Disk Time Reports the percentage of time that the selected disk drive is busy servicing read or write requests. Avg Disk Latency (ms) Measures the average time of each data transfer in the most recent sample, regardless of the number of bytes read or written. Shows the total time from the moment it leaves the Diskperf.sys driver to the moment it is complete. A high value for this counter might mean that the system is retrying requests due to lengthy queuing or, less commonly, disk failures. Disk geometry Cylinders The amount of cylinders on the manufactured drive. Tracks per cylinder The number of tracks per cylinder. Sectors per track The number of sectors per track Bytes per sector The number of bytes per sector Total disk sectors The total number of sectors on the disk Logical sector size The size of each logical sector in bytes Physical sector size The size of each physical sector in bytes Media rotation rate The rotation rate of the drive in RPM or 'Solid State Disk' if the media is non-rotating. Buffer Size The size of the disk subsystems data buffer in KB. ECC Size The size of the Error Correcting Code in bytes Standards compliance List of supported/unsupported standards World Wide ID A unique 8-byte identifier for the device Feature support List of supported/unsupported features of the device