Dell PowerVault TL4000 SCSI Reference Guide - Page 32
Statistic, Counter, structure
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Page Length: The Page Length specifies the total number of bytes contained in this log page, not including the four bytes of the header. Statistic Counter structure Byte 0 1 2 3 4 5 6 7 Bit 7 (MSB) DU(0) (MSB) 6 5 4 3 2 1 0 DS(1) TSD(0) Parameter Code (n) ETC(0) TMC(0) Parameter Length (4) Reserved Reserved (LSB) LP(0) Statistic Counter Value (LSB) Field descriptions: Parameter Code : The Parameter Code is a 2-byte value that uniquely identifies the parameter within the log. It ranges from 1..9. DU: Disable Update is set for any parameter that the Host cannot reset. DS: Disable Save. The media changer has no support for SP bit. Set to 1. TSD: Target shall determine save method, set to 0. ETC: No threshold comparison, set to 0. TMC: No threshold supported, set to 0. LP: The List Parameter field is set to zero for parameters that are counters and set to one for parameters that are not counters. Parameter 1 2 3 4 5 6 7 Definition Description DU LP Minutes of Operation: This 4 byte unsigned counter specifies the minutes of 0 0 operation. Every minute the device is turned on this counter will increment. Number of Power-ups: This 4 byte unsigned counter specifies the number of 0 0 times the library is turned on. Number of Firmware This 4 byte unsigned counter specifies the number of 0 0 Updates: times the internal flash code (ROM) has been updated. Number of Loader This 4 byte unsigned counter specifies the number of 0 0 Moves: times the media changer performed a successful Move operation. Number of Event Entries: This 4 byte unsigned counter specifies the number of 0 0 Event entries in the trace buffer. Number of Error Entries: This 4 byte unsigned counter specifies the number of 0 0 Error entries in the trace buffer. Number of This 4 byte unsigned counter specifies the number of 0 0 Informational Entries Informational entries in the trace buffer. 3-18 TL2000 and TL4000 SCSI Reference