PGRP section

Mainframe Analytics Recorder User Guide

Version

10.1.x

Audience

anonymous

Part Number

MK-92HC226-08

ft:lastEdition

2026-01-30

The PGRP section is output for each parity group.

Table. PGRP section
Offsets		Field name	Length	Format	Description
0	0	RRS4PGID	2	binary	Parity group number.^#4
2	2	RRS4PSID	2	binary	Parity group sub-number.^#4
4	4	RRS4CLID	1	binary	CLPR number assigned to the parity group.
5	5	RRS4TYPE	1	binary	Parity group type. Bit: Meaning 0: Internal parity group 1-6: Reserved 7: Parity group for pool volumes
6	6	RRS4MDEL	16	EBCDIC	Model names of the drives that make up the parity group. Type: Disk drive model HDD: DKS5K-J2R4SS HDD: DKR2H-H10RSS, DKS2K-H10RSS HDD: DKS2K-H14RSS SSD: SLB5F-M960SD, SLB5G-M960SS SSD: SLB5F-M3R8SS, SLR5E-M3R8SS, SLB5G-M3R8SS, SLR5F-M3R8SS, SLM5A-M3R8SS SSD: SLR5E-M7R6SS, SLB5G-M7R6SS, SLR5F-M7R6SS, SLM5A-M7R6SS SSD: SLB5H-M15RSS SSD: SLA5A-M30RSS FMD: NFHAF-Q6R4SS, NFHAL-Q6R4SS, NFHAH-Q6R4SS, NFHAJ-Q6R4SS, NFHAK-Q6R4SS FMD: NFHAF-Q13RSS, NFHAH-Q13RSS, NFHAJ-Q13RSS, NFHAK-Q13RSS
22	16	RRS4RLVL	1	binary	RAID level of the parity group. 0: RAID1 1: RAID5 2: RAID6
23	17	RRS4PLID	1	binary	Pool ID of the pool volume that belongs to the parity group. This field is valid only when the value of bit 7 of the parity group type (RRS4TYPE) is 1.
24	18	RRS4BEMU	2	binary	Base emulation type. x0093: 3390-3 x0393: 3390-3A (3390-3 Rapid Ex MF to Open) x0193: 3390-3B (3390-3 Rapid Ex Open to MF) x0493: 3390-3C (3390-3 Rapid Ex MF <=> Open) x0099: 3390-9 x0399: 3390-9A (3390-9 Rapid Ex MF to Open) x0199: 3390-9B (3390-9 Rapid Ex Open to MF) x0499: 3390-9C (3390-9 Rapid Ex MF <=> Open) x009F: 3390-L (3390-27) x039F: 3390-LA (3390-27 Rapid Ex MF to Open) x019F: 3390-LB (3390-27 Rapid Ex Open to MF) x049F: 3390-LC (3390-27 Rapid Ex MF <=> Open) x009E: 3390-M (3390-54) x039E: 3390-MA (3390-54 Rapid Ex MF to Open) x019E: 3390-MB (3390-54 Rapid Ex Open to MF) x049E: 3390-MC (3390-54 Rapid Ex MF <=> Open) x009A: 3390-A x009B: 3390-V (Pool Volume)
26	1A	--	6	--	Reserved.
32	20	RRS4SODC	8	binary	Number of tracks transferred by sequential data transfer from the drives that make up this parity group to the cache.^#1^{, #2}
40	28	RRS4RODC	8	binary	Number of tracks transferred by random data transfer from the drives that make up this parity group to the cache.^#1^{, #2}
48	30	RRS4NOCD	8	binary	Number of tracks transferred from the cache to the drives that make up this parity group.^#1^{, #2}
56	38	RRS4NBDC	8	binary	Amount of data (in units of 128 KB) transferred from the drives that make up this parity group to the cache.^#1^{, #3}
64	40	RRS4NBCD	8	binary	Amount of data (in units of 128 KB) transferred from the cache to the drives that make up this parity group.^#1^{, #3}
72	48	RRS4NTDC	8	binary	Amount of time (in units of 16 milliseconds) required to transfer data from the drives that make up this parity group to the cache.^#1
80	50	RRS4NTCD	8	binary	Amount of time (in units of 16 milliseconds) required to transfer data from the cache to the drives that make up this parity group.^#1

#1: Value derived by calculating the difference between the value of this field and the value of the corresponding field of the directly preceding SMF record for which both the record type and the record subtype are the same. Dividing this value by the value of the SMFRSETM field (the time elapsed since the previous interval) of the product section gives the average for one hundredth of a second. If a record was not output at the preceding interval, a record will also not be output at the next interval.
#2: Number of tracks transferred between the cache and the drive. This is not the amount of data that was actually transferred, because the format is the CKD format. Information about the amount of transferred data is output to RRS4NBDC and RRS4NBCD.
#3: Amount of data (in units of 128 KB) transferred between the cache and the drive.
#4: This has a correlation with the RAID rank IDs output to the SMF records by RMF.