Managed Infrastructure · Monthly Service Report

System Performance
June 2026

Daewoo E&C Vina — monitored web infrastructure (3 hosts)

DocumentDECV-PERF-2026-06

Issued02 Jul 2026

Revision1.0

ClassCONFIDENTIAL

Analysis period01 Jun – 30 Jun 2026

Sample resolution1-hour averages

Data sourceZenius EMS (SMS)

Prepared byNOC / Managed Services

Normal Attention required Warning zone ≥ 70% Critical zone ≥ 85% Monthly peak (max) Bars show monthly average

Executive summary

web.boatcon

10.10.100.10 · internal

Normal

Flat, very low utilisation all month. No action required; candidate for right-sizing review.

web.boatnet

10.10.200.11 · internal

Attention required

Filesystem averaging 77.46% with an 86.98% peak. One-off CPU spike and large outbound traffic burst observed.

web.boatsale

42.96.58.89 · public-facing

Normal

Healthy across all metrics. Memory steady near 57% — trend-watch only, no action needed.

Two of the three monitored hosts operated within normal limits for the whole of June. web.boatnet requires action on disk capacity before it reaches the critical threshold, and one traffic/CPU event on that host should be identified and confirmed as legitimate. Details and remediation steps are in sections 2 and 5.

Key findings

F-01High

web.boatnet filesystem is approaching capacity. Usage averaged 77.46% across June and peaked at 86.98%, crossing the 85% critical threshold. At this level, log growth or a single large job can fill the volume and interrupt the service.

F-02Medium

Unexplained load and traffic burst on web.boatnet. CPU peaked at 57.88% (monthly average just 1.10%) alongside an outbound burst of 185.11 Mbps against a 954 kbps average, and a load-average peak of 3.57. The pattern is consistent with a backup or batch transfer window, but it should be positively identified and confirmed as legitimate.

F-03Low

web.boatsale memory is steady but worth watching. Memory held a narrow band around 56.93% average (54.53–60.30%). No action needed; flag if the average trends above 70%.

F-04Info

web.boatcon is consistently idle. CPU averaged 5.33% with filesystem at 37.77% and negligible disk I/O. The host is healthy and likely over-provisioned — a candidate for right-sizing at the next capacity review.

Fleet overview

Metric — monthly avg (max)	web.boatcon	web.boatnet	web.boatsale
CPU used	5.33% (5.63)	1.10% (57.88)	0.72% (3.40)
Memory used	33.67% (41.76)	42.18% (58.98)	56.93% (60.30)
Load average · 5 min	0.22 (0.45)	0.07 (3.57)	0.02 (0.26)
Disk I/O busy	0.14% (0.34)	0.08% (10.75)	2.78% (9.81)
Outbound traffic	121.90 kbps (1.87 M)	954.05 kbps (185.11 M)	85.95 kbps (5.07 M)
Filesystem used	37.77% (39.02)	77.46% (86.98)	12.58% (12.87)

Source: Zenius EMS export, 1-hour average samples, 01–30 Jun 2026. Highlighted cell exceeds the 70% warning threshold.

Host detail

web.boatcon.daewooencvina.vn 10.10.100.10 internal Normal

CPU used 5.33% avg · max 5.63 · min 5.17

Memory used 33.67% avg · max 41.76 · min 14.84

Disk I/O busy 0.14% avg · max 0.34 · min 0.12

Filesystem used 37.77% avg · max 39.02 · min 36.58

Load avg · 5 minavg 0.22 · max 0.45 Outbound trafficavg 121.90 kbps · max 1.87 Mbps

Flat utilisation across the month — effectively idle. No action required (see F-04).

web.boatnet.daewooencvina.vn 10.10.200.11 internal Attention required

CPU used 1.10% avg · max 57.88 · min 0.44

Memory used 42.18% avg · max 58.98 · min 35.67

Disk I/O busy 0.08% avg · max 10.75 · min 0.01

Filesystem used 77.46% avg · max 86.98 · min 42.01

Load avg · 5 minavg 0.07 · max 3.57 Outbound trafficavg 954.05 kbps · max 185.11 Mbps

Filesystem trending high — remediation required (F-01). CPU, load and traffic peaks point to a single heavy window; identify the job behind it (F-02).

web.boatsale.daewooencvina.vn 42.96.58.89 public-facing Normal

CPU used 0.72% avg · max 3.40 · min 0.47

Memory used 56.93% avg · max 60.30 · min 54.53

Disk I/O busy 2.78% avg · max 9.81 · min 2.12

Filesystem used 12.58% avg · max 12.87 · min 12.32

Load avg · 5 minavg 0.02 · max 0.26 Outbound trafficavg 85.95 kbps · max 5.07 Mbps

Public-facing host, healthy across the board. Memory steady near 57% — trend-watch only (F-03).

Recommendations

ID	Priority	Action	Target	Refs
R-01	P1	Reclaim disk space on web.boatnet: rotate and compress application/web logs, purge temp files and stale backups. If usage cannot be brought to ≤ 70%, extend the volume.	15 Jul 2026	F-01
R-02	P2	Identify the job behind the June CPU/traffic burst on web.boatnet (57.88% CPU, 185 Mbps egress): correlate with backup and batch schedules and web/access logs; confirm legitimate or escalate for investigation.	31 Jul 2026	F-02
R-03	P2	Enable continuous monitoring with automated alerting at the thresholds used in this report (warning 70% / critical 85%), so events like F-01 raise an alert in real time instead of at month-end.	31 Jul 2026	F-01, F-02
R-04	P3	Trend-watch web.boatsale memory; act only if the monthly average exceeds 70%.	Ongoing	F-03
R-05	P3	Review web.boatcon sizing at the next capacity review; the host is consistently idle and resources may be reallocated.	Next review	F-04

Next steps

Proposed · Always-on performance dashboard

This report is a monthly snapshot. To give Daewoo E&C Vina continuous, on-demand visibility, we propose a live monitoring dashboard (Grafana) fed by the same hosts, available at a fixed URL with a dedicated read-only account. It would show the metrics in this report in real time, retain history for trend analysis, and send automated alerts when warning or critical thresholds are crossed.

Monthly analysis reports in this format would continue alongside the dashboard, covering findings and recommendations. We are happy to demonstrate the dashboard on request.