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HDISV Day 2 Operations Guide

Overview

Day 2 operations cover the ongoing management and maintenance of your HDISV instance after initial deployment. This guide focuses on tasks you can perform from z/OS and through the ZLPN portal.

Table of Contents

Managing Your Instance

Starting and Stopping z/OS

Stop z/OS (MSI Mode)

From ZLPN Portal:

  1. Log into ZLPN portal
  2. Navigate to your instance
  3. Click "Stop" button
  4. Wait for status to show "Stopped"

From z/OS Console:

# Graceful shutdown command
/V XCF,LTE1,OFFLINE

Important: Always use graceful shutdown to prevent data corruption.

Start z/OS (MSI Mode)

From ZLPN Portal:

  1. Log into ZLPN portal
  2. Navigate to your instance
  3. Click "Start" button
  4. Wait 5-10 minutes for z/OS to complete startup

Verify z/OS is Ready:

# Test SSH connection
ssh zosadmn@<your-ip>

# Test 3270 connection
# Connect via your 3270 emulator to <your-ip>:2023

LAI Mode Operations

For LAI mode instances, you have direct access to the Linux layer and can manage the z/OS service manually. Contact support or refer to internal documentation for Linux layer operations.

Recreating an Instance (MSI Mode Only)

Recreating refreshes your z/OS system while preserving your user data.

When to Recreate

What Gets Preserved

Preserved:

Refreshed:

Pre-Recreate Checklist

1. Backup Critical Data

# From TSO/ISPF
# Export important datasets using:
# - ISPF 3.4 (DSLIST) - Download via IND$FILE
# - FTP from your workstation
# - SFTP/SCP via SSH

2. Document Configuration

3. Verify Backup

Recreate Process

1. Initiate Recreate

2. Wait for Completion

3. Verify After Recreate

# SSH to z/OS
ssh zosadmn@<your-ip>

# Check your datasets are present
# From TSO
LISTDS

# From ISPF 3.4
# Enter: ZOSADMN.**
# Verify your datasets are listed

4. Restore Configurations

Post-Recreate Tasks

1. Set New Password

# SSH to z/OS
ssh zosadmn@<your-ip>

# Set your password
password_change.py -u ZOSADMN -p 'YourNewPassword123!'

2. Verify Middleware

# From TSO
# Check DB2 (if selected)
DSN

# Check CICS (if selected)
# Connect via 3270 to CICS region

# Check IMS (if selected)
# Verify IMS is active

3. Test Applications

z/OS Operations

Dataset Management

Backing Up Datasets

Method 1: FTP from Workstation

# From your workstation
ftp <your-ip>
# Login as zosadmn
# Use your password

# Download dataset
get 'ZOSADMN.MY.DATASET' mydataset.txt

# Download multiple datasets
mget 'ZOSADMN.BACKUP.*'

Method 2: SFTP/SCP

# From your workstation
sftp zosadmn@<your-ip>

# Download dataset
get //'ZOSADMN.MY.DATASET' mydataset.txt

Method 3: DFSMSdss (from z/OS)

# From TSO
# Use ISPF 3.4 to export datasets
# Or submit DFSMSdss JCL

See Dataset Migration Guide for detailed instructions.

Restoring Datasets

From FTP:

# From your workstation
ftp <your-ip>

# Upload dataset
put mydataset.txt 'ZOSADMN.MY.DATASET'

From SFTP:

sftp zosadmn@<your-ip>

# Upload dataset
put mydataset.txt //'ZOSADMN.MY.DATASET'

Cleaning Up Old Datasets

From ISPF 3.4:

  1. Enter dataset pattern: ZOSADMN.**
  2. Type D next to datasets to delete
  3. Press Enter to confirm

From TSO:

# Delete single dataset
DELETE 'ZOSADMN.OLD.DATASET'

# Delete generation data group
DELETE 'ZOSADMN.MY.GDG' GDG

Job Management

Monitoring Jobs

From SDSF:

  1. Enter SDSF from TSO
  2. Type ST for status display
  3. View active jobs
  4. Type ? next to job for output

From USS (SSH):

# View job output
# Use SDSF or TSO commands

Canceling Jobs

From SDSF:

  1. Enter SDSF
  2. Type ST for status
  3. Type C next to job to cancel

From TSO:

# Cancel job by name
CANCEL jobname

System Monitoring

Check System Status

From TSO:

# Display active tasks
D A,ALL

# Display system resources
D M=CPU

# Display storage
D ASM

Monitor Storage Usage

From ISPF 3.4:

  1. Enter: ZOSADMN.**
  2. Review space used by datasets
  3. Look for datasets using excessive space

From TSO:

# List catalog entries
LISTCAT ENTRIES('USER01') ALL

# Check volume space
LISTCAT ENTRIES('USMS01') ALL

See Managing Storage for detailed storage management.

Backup and Recovery

Backup Strategy

What to Backup

Critical Data:

How Often:

Backup Methods

1. Automated FTP Script

#!/bin/bash
# backup-datasets.sh

HOST="<your-ip>"
USER="zosadmn"

ftp -n $HOST <<EOF
user $USER
binary
cd //
mget 'ZOSADMN.PROD.*'
bye
EOF

2. Manual Export

3. Dataset Migration

Recovery Procedures

Restore from Backup

1. Upload Datasets

# From your workstation
ftp <your-ip>
# Login
put mydataset.txt 'ZOSADMN.MY.DATASET'

2. Verify Restoration

# From ISPF 3.4
# Check dataset exists and has correct data

3. Test Applications

Disaster Recovery

If Instance is Lost:

  1. Create new instance through ZLPN portal
  2. Restore datasets from backups
  3. Reconfigure applications
  4. Test thoroughly

If Data is Corrupted:

  1. Stop affected applications
  2. Restore from last good backup
  3. Verify data integrity
  4. Resume operations

Monitoring and Maintenance

Regular Maintenance Tasks

Daily Tasks

1. Check System Status

2. Review Storage

3. Backup Active Data

Weekly Tasks

1. Full Backup

2. Review Performance

3. Clean Up

Monthly Tasks

1. Review Instance Size

2. Update Documentation

3. Test Recovery

Performance Monitoring

Check Resource Usage

From z/OS:

# Display CPU usage
D M=CPU

# Display storage usage
D ASM

# Display I/O activity
D U,DASD

Optimize Performance

1. Review Job Priorities

2. Manage Storage

3. Consider Upgrade