The Latest Probe tab on the Disks window shows the information about this disk that was collected by the most recent probe of that disk.
Note: Some of this information is not applicable for IBM SAN Volume Controller clusters or ESS subsystems, and will be displayed as N/A.
Field Name |
Description |
Sector Size |
size of the sectors on a disk |
Sectors per Average Track |
average number of sectors per track across an entire disk |
Sectors per Outer Track |
average number of sectors for Outer tracks on a disk |
Sectors per Inner Track |
average number of sectors for Inner tracks on a disk |
Heads |
number of heads on the disk |
Cylinders |
number of cylinders on the disk |
Logical Block Size |
same as Sector Size |
Capacity |
amount of storage space allocated to disk |
RPM |
speed that the disk turns (revolutions per minute) |
Elapsed Time Powered On |
amount of time since the disk was powered on |
Spare Blocks |
blocks reserved for copying data from defective blocks |
Write Protection |
indicates whether write protection is enabled for a disk |
Cache Enabled |
NONE, READ, WRITE, READ + WRITE
|
Failure Predicted |
indicates whether a failure is predicted for a disk |
Probe Last Run |
date/time when the last probe was run against the disk |
Unallocated Space |
amount of unused space on a disk |
Primary Defects |
number of defects on the disk when it was new |
Grown Defects |
number of defects on the disk after the it has been used |
NonMedium Errors |
An error not related to the physical disk platter, such as mechanical problem in the head movement, communication errors, etc. |
Temperature |
temperature (in degrees) of the disk (in Celsius) |
Recovered Errors |
read or write error which succeeded on a subsequent attempt |
Unrecovered Errors |
read or write error which disk could not overcome |
Bytes |
total number of bytes transferred since format or manufacture of a disk |
Automatic Write Reallocation |
If ON, disk attempts to write to another part of disk surface when disk defect is found. If OFF, unrecovered error occurs when defect is found. |
Automatic Read Reallocation |
If ON, recovered read error causes data to remap (to different parts of the medium). If OFF, no remapping occurs on (recovered) read errors. |
Read Continuous (no error correction) |
If ON, device may fabricate data. If OFF, device must try to reread and must report error upon failure. |
For more information, see Asset Reporting - By Storage Subsystem.