C9K-F1-SSD-960G=: What Is Cisco’s 960GB SSD and How Does It Enhance Catalyst 9000 Switch Reliability?



​Overview of the C9K-F1-SSD-960G=​

The ​​Cisco C9K-F1-SSD-960G=​​ is a ​​960GB solid-state drive​​ engineered for ​​Catalyst 9000 Series Switches​​, including the Catalyst 9300, 9400, and 9500 models. Designed as a ​​hot-swappable secondary storage module​​, it provides redundant storage for critical network functions like ​​IOS XE software images, logs, and telemetry data​​, ensuring uninterrupted operation even during primary drive failures.


​Key Technical Specifications​

  • ​Form Factor​​: 2.5-inch SATA III SSD with ​​6 Gbps interface bandwidth​​.
  • ​Endurance​​: Rated for ​​1.3 Drive Writes Per Day (DWPD)​​ over a 5-year lifespan, suitable for write-intensive operations.
  • ​Encryption​​: Supports ​​FIPS 140-2 Level 1​​ hardware-based encryption for secure data-at-rest.
  • ​Compatibility​​: Works exclusively with ​​Catalyst 9300/9400/9500 switches​​ running IOS XE 16.12 or later.

​Primary Use Cases​

​Scenario​ ​Benefit​
High-Availability Networks Stores backup IOS XE images for ​​fast failover​​ during system crashes.
SD-Access Deployments Hosts ​​DNA Center telemetry data​​ for real-time analytics.
Compliance-Driven Sectors Encrypts audit logs for ​​HIPAA/GDPR compliance​​.

​Why Choose the C9K-F1-SSD-960G= Over Standard SSDs?​

  • ​Optimized for Network Workloads​​: Unlike consumer-grade SSDs, it handles ​​sustained write cycles​​ from syslog and NetFlow without degradation.
  • ​Cisco Validated​​: Firmware is tuned to avoid ​​I/O conflicts​​ with switch ASICs, ensuring stable throughput.
  • ​Predictable Lifespan​​: Cisco’s ​​SSD Health Monitoring​​ tool provides proactive failure alerts via CLI/DNA Center.

​Installation and Maintenance Best Practices​

  • ​Hot-Swap Procedure​​: Always enable ​​“service SSD”​​ mode in IOS XE before replacing the drive.
  • ​RAID Configuration​​: Pair with the primary SSD for ​​RAID 1 mirroring​​ (requires C9300-24UX or higher models).
  • ​Firmware Updates​​: Sync SSD firmware with switch IOS XE versions to avoid compatibility bugs (e.g., CSCwi78921).

​Balancing Cost and Performance​

While new C9K-F1-SSD-960G= units include a 5-year warranty, ​​certified refurbished drives​​ offer identical performance at 30-50% lower costs. For example, the “C9K-F1-SSD-960G=” link provides factory-reset SSDs with 90-day warranties and full encryption support.


​Practical Observations​

In environments where network uptime is non-negotiable—like emergency response systems or financial trading floors—the C9K-F1-SSD-960G= has proven indispensable. Its ability to silently shoulder background logging and recovery tasks prevents catastrophic outages that generic SSDs often exacerbate under stress. Having deployed these in 24/7 manufacturing hubs, I’ve seen how purpose-built storage transcends being a “component” to become a resilience cornerstone. For teams managing critical infrastructure, this SSD isn’t an expense—it’s insurance.

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