---
title: "SMF 78-2 Virtual Storage"
slug: "smf-78-2-virtual-storage"
updated: 2024-02-29T08:34:22Z
published: 2024-02-29T08:34:22Z
canonical: "docs.zetaly.io/smf-78-2-virtual-storage"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zetaly.io/llms.txt
> Use this file to discover all available pages before exploring further.

# SMF 78-2 Virtual Storage

## Introduction

Reports virtual storage activity. It contains a Common Storage data section and may contain one or more Private Area data sections. The minimum length of subtype 2 is 1836 bytes if no private area is included. Otherwise the length is 112 bytes plus 1724 bytes plus at least 392 bytes for each private area that is monitored.

## Fields

Stored in vstData

| SMF Field | DB Column name | Description | Unit |
| --- | --- | --- | --- |
|  | recordType | Value is always ME78 |  |
| SMF78SID | sid | System identification |  |
| SMF78DAT | startTime | Date when the RMF measurement interval started |  |
| SMF78DTE/TME | endTime | Date when the record was moved into the SMF buffer |  |
| SMF78STY | subType | Subtype |  |
| SMF78MFV | rmfVersion | RMF version number |  |
| SMF78PRD | productName | Product name |  |
| SMF78INT | seconds | Duration of the RMF measurement interval | second |
| SMF78MVS | mvsLevel | MVS software level |  |
| SMF78SYN | synctime | SYNC value | second |
| SMF78XNM | sysplex | Sysplex name as defined in parmlib member COUPLExx |  |
| SMF78SNM | sysname | System name for current system as defined in parmlib member IEASYSxx SYSNAME parameter |  |
| R782PS | vstoPrvtAreaSize | Private area size below 16 megabytes | byte |
| R782EPS | vstoEprvtAreaSize | Private area size above 16 megabytes | byte |
| R782CS | vstoCsaSize | CSA size below 16 megabytes | byte |
| R782ECS | vstoEcsaSize | CSA size above 16 megabytes | byte |
| R782MLS | vstoMlpaSize | Modified link pack area size below 16 megabytes | byte |
| R782EMLS | vstoEmlpaSize | Modified link pack area size above 16 megabytes | byte |
| R782FLS | vstoFlpaSize | Fixed link pack area size below 16 megabytes | byte |
| R782EFLS | vstoEflpaSize | Fixed link pack area size above 16 megabytes | byte |
| R782PLS | vstoPlpaSize | Pageable link pack area size below 16 megabytes | byte |
| R782ELPS | vstoEplpaSize | Pageable link pack area size above 16 megabytes | byte |
| R782SS | vstoSqaSize | System queue area size below 16 megabytes. | byte |
| R782ESS | vstoEsqaSize | System queue area size above 16 megabytes | byte |
| R782NS | vstoNucSize | Nucleus size below 16 megabytes | byte |
| R782ENS | vstoEnucSize | Nucleus size above 16 megabytes | byte |
|  | csaMinValueBelow16M |  |  |
|  | csaTimeMinValBelow16M |  |  |
|  | csaMaxValueBelow16M |  |  |
|  | csaTimeMaxValBelow16M |  |  |
|  | csaTotValueBelow16M |  |  |
|  | csaMinValueAbove16M |  |  |
|  | csaTimeMinValAbove16M |  |  |
|  | csaMaxValurAbove16M |  |  |
|  | csaTimeMaxValAbove16M |  |  |
|  | csaTotValueAbove16M |  |  |
|  | sqaMinValueBelow16M |  |  |
|  | sqaTimeMinValBelow16M |  |  |
|  | sqaMaxValueBelow16M |  |  |
|  | sqaTimeMaxValBelow16M |  |  |
|  | sqaTotValueBelow16M |  |  |
|  | sqaMinValueAbove16M |  |  |
|  | sqaTimeMinValAbove16M |  |  |
|  | sqaMaxValurAbove16M |  |  |
|  | sqaTimeMaxValAbove16M |  |  |
|  | sqaTotValueAbove16M |  |  |
|  | actionId |  |  |