Attribute

Definition

Drive Type

Drive type long description sent by the library. For example, T10000c‑Enc, HpUltrium4, etc. UNKNOWN indicates a broken drive or a drive for which STA cannot determine the type.

Note – Type is UNKNOWN for all DLT and SDLT drives, for which STA does not compute health.

Drive Serial Number

Electronic serial number of the drive. *NO-SERIAL* indicates it is not known.

Note – This field links to the Drives – Overview screen, detail view, which displays all available details for this drive. See “Drives Overview and Analysis Screens”.

Drive WWNN

World Wide Node Name for the drive slot.

Drive ID

Library drive bay where the drive is located.

Drive WWPN (Port A)

World Wide Port Name for drive port A. This is automatically generated by the library controller during library initialization.

Drive WWPN (Port B)

World Wide Port Name for drive port B. This is automatically generated by the library controller during library initialization.

Drive Health Indicator

Drive health. This is a point-in-time value computed by STA analytics based on data gathered from the drive during current and past exchanges. It reflects a variety of factors, such as the drive’s error history, read margin, and write efficiency.

This value includes all data up to and including the last completed exchange. It is updated immediately after each completed exchange involving the drive.

Possible values, in order of degrading health:

Note – STA only receives information about errors detected by a drive while performing read/write activity to a cartridge. STA does not receive information about errors that may occur in the data path or the host application.

Note – Cleaning exchanges have a neutral impact on drive health.

Exchange Drive Cleaning Required

Indicates whether the drive needed cleaning at the time of the exchange. Possible values: Yes or No.

Note – Additional detail may be available via the Clean Periodic Alert and Clean Now Alert attributes.

Drive Lifetime Cleans

Total cleans performed on the drive over its lifetime.

Note – The drive lifetime may be longer than the time it has been monitored by STA.

Drive Lifetime Loads

Total media loads for the drive over its lifetime. Available for all drive types but LTO3.

Note – The drive lifetime may be longer than the amount of time it has been monitored by STA.

Drive Lifetime Meters

Total meters of tape that have passed through the drive heads over the drive's lifetime. Available for all drive types but LTO3.

Note – The drive lifetime may be longer than the amount of time it has been monitored by STA.

Drive Start Tracking

Date and time when STA first began tracking this drive serial number.

Drive Stop Tracking

Date and time when STA stopped tracking this drive serial number. This is when STA determined the drive serial number no longer exists in any of the monitored libraries and updated the drive status from “missing” to “removed”.