System Maintenance – Procedures and Best Practices/Suggestions
System Maintenance
– Procedures and Best Practices/Suggestions
Overview
System
maintenance is critical to ensure the continued performance, security, and
reliability of IT systems. This article outlines the types of maintenance, responsibilities,
and best practices to minimize downtime and disruptions.
System
Maintenance Activities
- System Patch Management
- Apply OS security patches and
hotfixes regularly
- Test patches in a staging
environment before production rollout
- System Updates
- Perform kernel updates (Linux)
and cumulative updates (Windows)
- Reboot servers if required
post-update
- Modifying systems to work with
changing environments (e.g., OS upgrades, new hardware)
- Performance Tuning
- Monitor and adjust memory, CPU,
disk I/O configurations
- Clean up temporary/log files
- Monitor disk usage and expand
volumes if necessary
- Disk Cleanup and defragmentation
- Hardware Health Check
- Security Scan Vulnerability
- Disable unnecessary services
- Time Sync Check (Server and Real
time)
- Server Log Review
- User & Permissions Review
- Audit user accounts and access
rights quarterly
- Remove or disable unused
accounts
- Resource utilization monitoring
- Service Availability Check
(Critical for business)
- Backup and Recovery Verification
- Confirm backups run successfully
- Conduct recovery tests
semi-annually
Maintenance
Schedule
|
Type
|
Frequency
|
Responsibility
|
|
OS
Updates
|
Monthly
|
IT
Systems Administrator
|
|
Security
Patches
|
As released
|
IT
Security Team
|
|
Hardware
Checks
|
Quarterly
|
Data
Center Ops Team
|
|
Backup
Verification
|
Weekly/Fortnightly
|
Backup
Administrator
|
Maintenance
Window Guidelines
- Schedule during off-peak hours
(e.g., Sundays 12:00 AM – 6:00 AM)
- Notify impacted users at least
48 hours in advance
- Maintain a rollback plan in
case of fail
Best
Practices
- Always back up systems before
performing maintenance
- Use change management
procedures for significant updates
- Test patches in staging before
applying to production
- Communicate clearly with end
users about planned downtimes
- Maintain an updated inventory
of all systems and their maintenance history
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