ID | Attribute | Size (bytes) | Format |
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Remaining capacity in partition and Native capacities in MB, assuming no data compression. Maximum capacity in partition
TapeAlert flags | The bits specify flags that were set during the previous load. 1 bit |
| per flag (MSB = flag 1, LSB = flag 64). |
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Load count | The number of times this tape has been fully loaded. It is never |
| reset. |
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MAM space remaining | The space currently free in the MAM. The total MAM capacity is |
| reported in the MAM Capacity attribute defined in “Standard |
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| Note that it may not always be possible to use all the free space in |
| a given MAM implementation. Depending on the internal |
| organization of the memory and the software that controls it, |
| fragmentation issues may mean that certain attribute sizes might |
| not be fully accommodated as the MAM nears its maximum |
| capacity. |
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Assigning organization | The Vendor ID of the organization that will define attribute 0006h. |
| It contains the string |
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Formatted density code | The medium density code. |
Device make/serial number at last These attributes provide a rolling history of the last four device
load and Device make/serial |
| servers in which the tape has been loaded. The format of the | ||||||||||
number at load |
| attributes is as follows: |
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| 7 |
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| 4 | 3 | 2 | 1 | 0 |
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| 0 | (MSB) |
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| Vendor Identification |
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| 7 |
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| 8 | (MSB) |
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| Product Serial Number |
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| 39 |
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Vendor Identification The same value as is returned in the SCSI INQUIRY command by the device server, padded with ASCII spaces (20h).
Product Serial Number
Total MB written in medium life The total number of data bytes written to or read from the tape (after any
anddata compression has been applied) over the entire tape life. These Total MB read in medium life figures are cumulative and will never be reset.
Total MB written in current/last These are similar to the attributes above but apply to the current load (if
load and Total MB read in the tape is currently loaded) or the last load (if the tape is currently
current/last loadunloaded). The device server should reset these attributes to zero when the tape is loaded.
Commands
READ ATTRIBUTE 8Ch 117