Table 23: MIM fields descriptions. Use with Figure 12 on page 42. (continued)
Locator number
Field name
Field data or references
Note: The Field Data in Location number
7
is presented in hexadecimal format. Use Table 24 on page
43 to translate the information in this field to ASCII values.
Table 24: Hexadecimal-to-ASCII conversion. The Notes in Table 21 on page 40 and Table 23 on page 42
provide information about when to use this table.
Hex ASCII
Hex ASCII
Hex ASCII
Hex ASCII
Hex ASCII
00 Null
30 0
41 A
4A J
54 T
20 Space
31 1
42 B
4B K
55 U
32 2
43 C
4C L
56 V
33 3
44 D
4D M
57 W
34 4
45 E
4E N
58 X
35 5
46 F
4F O
59 Y
36 6
47 G
50 P
5A Z
37 7
48 H
51 Q
5F -
38 8
49 I
52 R
39 9
53 S
Note: Not all codes are shown.
Statistical Analysis and Reporting System (SARS)
The statistical analysis and reporting system (SARS) helps determine whether read and write errors are
caused by the media (tape) or the drive hardware, and reports SIMs and MIMs. To analyze errors, the
3592 microcode contains a volume SARS (VSARS) algorithm for a MIM and a hardware SARS (HSARS)
algorithm for a SIM.
Note: For information on SARS reporting, refer to the Statistical Analysis and Reporting System User
Guide. To obtain online documentation, refer to “Website information” on page xviii for a website URL.
The algorithms are run in the 3592 just before a tape cartridge is unloaded. The HSARS data is stored in
nonvolatile storage in the drive and the VSARS data is stored in cartridge memory (CM) on the tape
cartridge media.
To distinguish error patterns and trends, the SARS volume algorithms require the tape cartridge to be
mounted on different drives, while the SARS hardware algorithms require different volumes to be
mounted on one drive. As hardware passes through predefined error thresholds, cleaning and service
repair messages or error codes are presented. Similarly, if tape volumes continue to perform poorly on
different drives, rewrite or discard-media messages are presented.
Enable the SARS options to take advantage of media error isolation with MIMs and some SIMs. You can
enable or disable SARS options from “CE Drv Options menu” on page 119. When a drive is shipped from
the factory, the default value for SARS options is set to Enabled. The customer must continue to operate
the drive with SARS enabled.
Messages 43
