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Zorluk: OrtaDesigning Infrastructure for Business Requirements and Cost Optimization

A smart grid energy enterprise needs to migrate 800 TB of historical sensor log files from an on-premises network-attached storage (NAS) system to Google Cloud Storage within a strict 2-week maintenance window. The company's facility connects to the internet via a shared 100 Mbps uplink that is heavily utilized for daily business operations. To meet compliance, the business requires that the transfer completes on time, does not disrupt ongoing operational traffic, and minimizes overall cost. Which strategy should a cloud architect recommend?

  1. Order a Google Cloud Transfer Appliance, copy the data locally over the high-speed local network, and ship the physical appliance to Google for ingestion into Cloud Storage.Cevap
  2. B
    Deploy Storage Transfer Service agents on-premises to stream the log files directly over the existing 100 Mbps internet connection with bandwidth throttling enabled.
  3. C
    Configure an HA VPN connection over the public internet to aggregate multiple 3 Gbps tunnels and stream the files directly into Cloud Storage.
  4. D
    Provision a multi-region Cloud Spanner database and use Cloud Dataflow to stream and ingest the log files directly into database tables.

Cevap

Order a Google Cloud Transfer Appliance, copy the data locally over the high-speed local network, and ship the physical appliance to Google for ingestion into Cloud Storage.
Transferring 800 TB of data over a 100 Mbps uplink requires over 740 days. An offline transfer using Google Cloud Transfer Appliance allows copying data locally at high speed, shipping the device, and ingesting it into Cloud Storage within days, meeting the 2-week requirement at minimal cost without impacting production internet traffic.

Adım Adım Çözüm

1
Calculate required transfer throughput for 800 TB over a 2-week (14-day) window.
Network speed needed: (800 TB×8×1012 bits)/(14×86400 seconds)≈5.29 Gbps(800 \text{ TB} \times 8 \times 10^{12} \text{ bits}) / (14 \times 86400 \text{ seconds}) \approx 5.29 \text{ Gbps}.
Determines whether an online transfer over the existing 100 Mbps network connection is feasible.
2
Compare available WAN capacity against required throughput.
The available 100 Mbps WAN uplink is significantly lower than the required 5.29 Gbps continuous throughput.
Eliminates all online transfer strategies over the existing WAN connection.
3
Select the offline data transfer appliance solution.
Using a Google Cloud Transfer Appliance allows local high-speed ingestion (up to multi-Gbps locally) and physical shipping within the 14-day constraint at a minimal cost.
Satisfies the deadline, avoids network saturation, and optimizes migration costs.

Anahtar Kavram

Selecting physical transfer appliances versus online network transfer based on data volume, network bandwidth, and time constraints.
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Designing Infrastructure for Business Requirements and Cost Optimization