HP OpenVMS Systems Documentation

HP OpenVMS System Management Utilities Reference Manual

The following figures show the qualifiers that can be used in BACKUP save, restore, copy, compare and list operations. The figures also indicate valid combinations of BACKUP qualifiers.

• Figure G-1 shows command qualifiers used in save operations.
• Figure G-2 shows input file-selection qualifiers used in save operations.
• Figure G-3 shows output save-set qualifiers used in save operations.
• Figure G-4 shows command qualifiers used in restore operations.
• Figure G-5 shows input save-set qualifiers used in restore operations.
• Figure G-6 shows output file qualifiers used in restore operations.
• Figure G-7 shows command qualifiers used in copy operations.
• Figure G-8 shows input file-selection qualifiers used in copy operations.
• Figure G-9 shows output file qualifiers used in copy operations.
• Figure G-10 shows command qualifiers used in compare operations.
• Figure G-11 shows input file-selection qualifiers used in compare operations.
• Figure G-12 shows input save-set qualifiers used in compare operations.

Figure G-1 Command Qualifiers Used in Save Operations

Figure G-2 Input File-Selection Qualifiers Used in Save Operations

Figure G-3 Output Save-Set Qualifiers Used in Save Operations

Figure G-4 Command Qualifiers Used in Restore Operations

Figure G-5 Input Save-Set Qualifiers Used in Restore Operations

Figure G-6 Output File Qualifiers Used in Restore Operations

Figure G-7 Command Qualifiers Used in Copy Operations

Figure G-8 Input File-Selection Qualifiers Used in Copy Operations

Figure G-9 Output File Qualifiers Used in Copy Operations

Figure G-10 Command Qualifiers Used in Compare Operations

Figure G-11 Input File-Selection Qualifiers Used in Compare Operations

Figure G-12 Input Save-Set Qualifiers Used in Compare Operations

The following sections describe the MONITOR record formats.

Binary performance data is written into the MONITOR recording file when a MONITOR request indicates recording. A record is written to this file once per interval for each requested class. The record contains a predefined set of data for each of the requested performance classes.

The recording file is created when a MONITOR request is initiated, and is closed when the request terminates. The MONITOR recording file may be used as a source file to format and display the data on a terminal, to create a summary file, or to record a new recording file with different characteristics.

The MONITOR recording file is an OpenVMS RMS sequential file with variable-length records. Each record in the file begins with a one-byte type field. The remaining fields are different in length and format for each record type. The following list contains three categories of record types:

• Customer control record
• HP control record
• Class record

Customer control records may appear anywhere in the recording file. They are not generated by MONITOR and are ignored by MONITOR when it reads the file.

The first records in the MONITOR recording file, excluding customer control records, are HP control records. The beginning of the file has three types of HP control records: the file header record, the system information record, and the record RMS file name record. Node transition records are also control records, but can appear anywhere in the file.

Class records, which contain data on requested performance classes, follow the HP control records. The class record is generally written once per interval for each class being recorded. An exception to this rule occurs when several class records are required to contain data for a single class over a single interval. This can occur for the PROCESSES class when too many processes exist to be accommodated by the maximum record size.

Unique numbers are assigned to each MONITOR record type. Record type numbers 0--127 are reserved for class records; numbers 128--191 are reserved for HP control records; numbers 192--255 are reserved for customer control records.

MONITOR generates 29 record types. The following table lists the MONITOR record types and their numbers, with associated class types. (For an explanation of MONITOR class types, see Section H.4.1.)

The following sections define the contents of each field within each record type. Record type and record size are given in decimal representation. References to system time indicate time values in system time format (64-bit format).

The field offset names listed are not defined within MONITOR. However, HP recommends that you define and use these offset names when you work with MONITOR output records.

The following example is the suggested naming convention for the field offset names:

CCC is a record type or class mnemonic.

X is a one-letter code indicating the size of the data item, as follows:

B for byte
W for word
L for longword
Q for quadword
O for octaword
T for ASCII string

DDDDD is the name describing the data item.

In the following tables that describe the record fields, the size of the data is shown in parentheses following the description of the field contents.

H.3 HP Control Records

The four types of HP control records are:

• File header record
• System information record
• Node transition record
• RMS file record

Each file has one header record, which contains information applicable to all classes of performance data contained in the file. It must be the first record (except for customer control records) in the file.

One system information record exists per node per file. The record contains information about the system being monitored and follows the header record in the file.

H.3.1 File Header Record

The file header record has a record type of 128 and a size of 259 bytes.

Figure H-1 illustrates the format of the file header record on Alpha and I64 systems.

Figure H-1 File Header Record Format - Alpha and I64

Figure H-2 illustrates the format of the file header record on VAX systems.

Figure H-2 File Header Record Format - VAX Only

The following table describes the fields in the file header record:

H.3.2 System Information Record

Figure H-3 System Information Record Format - Alpha and I64

Figure H-4 illustrates the format of the system information record on VAX systems.

Figure H-4 System Information Record Format - VAX Only

The following table describes the fields in the system information record:

The node transition record has a record type of 130 and a size of 2 bytes. Figure H-5 illustrates the format of the node transition record.

Figure H-5 Node Transition Record Format

The following table describes the fields in the node transition record:

The RMS file record has a record type of 131 and a variable size that depends on the number of RMS files and length of the file name string. Figure H-6 illustrates the format of the RMS file record.

Figure H-6 RMS File Record Format

The following table describes the fields in the RMS file record.

The MONITOR recording file contains one class record for each requested class for every collection interval, except for the PROCESSES class. (See Section H.4.2.12 for more information about the PROCESSES class records.) For example, if a MONITOR user requested to record five classes (excluding PROCESSES) for a duration of 100 collection intervals, the file would contain 500 class records. Class records occur in order of increasing type number within an interval. The first class record for a given interval follows the last class record for the previous interval.

H.4.1 Class Type Formats

The two basic class types are system classes and component classes. A class record for a system class generally consists of counts for systemwide activities (such as page faults), whereas a class record for a component class normally contains a count for each element of a measured activity (such as I/O operations for each disk in the system).

Specifically, a class record for a system class consists of a class header followed by a data block. A class record for a component class has a class header followed by a class prefix and one data block per element.

Figure H-7 illustrates the format for class records.

Figure H-7 Class Record Format

The class header is the first part of every class record. Its format is independent of class. On Alpha and I64 systems, the class header is 16 bytes long; on VAX systems, the class header is 13 bytes long.

Figure H-8 illustrates the format of the class header on Alpha and I64 systems.

Figure H-8 Class Header Format - Alpha and I64

Figure H-9 illustrates the format of the class header on VAX systems.

Figure H-9 Class Header Format - VAX Only

The following table describes the fields in the class header: