Your organization is deploying a high-speed Network Intrusion Detection System (NIDS) capable of performing full packet capture on a 10Gbps link. To handle the massive influx of data before it is processed and offloaded to long-term cold storage, the engineering team is architecting a localized storage array for the sensor.
The primary requirement for this temporary cache is maximum write speed and performance. The engineers state that because this is a temporary buffer, they are willing to sacrifice data redundancy to achieve the necessary IOPS (Input/Output Operations Per Second).
Reviewing the storage provisioning request ticket:
The network engineering team is provisioning storage for a high-throughput network monitoring sensor. To ensure no packets are dropped during capture, they need maximum I/O write performance and are intentionally sacrificing data availability and fault tolerance.
This is an architecture and availability assessment. As a network defender, maintaining the CIA triad (Confidentiality, Integrity, Availability) is paramount. You must verify that the requested storage configuration matches the risk appetite (high performance, zero redundancy).
C. RAID level 0 uses block-level striping across multiple disks to significantly boost read and write performance. However, it offers absolutely zero fault tolerance. If a single drive in the RAID 0 array fails, the entire logical volume is lost.
A. RAID level 5: Uses block-level striping with distributed parity. It provides fault tolerance (can survive one drive failure) but suffers a write performance penalty due to parity calculations.
B. RAID level 3: Uses byte-level striping with a dedicated parity disk. It provides fault tolerance.
D. RAID level 1: Uses disk mirroring. Data is duplicated across drives, providing excellent fault tolerance and redundancy, but less write performance gain compared to striping.
Approve this configuration only for temporary, non-critical cache scenarios (like this raw packet buffer). Ensure that critical security systems, log retention servers (SIEM), and identity databases utilize fault-tolerant arrays like RAID 10, RAID 5, or RAID 6 to prevent catastrophic data loss during hardware failures.