Dell PowerEdge M640 / FC640 Dual Micro SD Reader Riser Card Part #: Y9CJ7 / 0Y9CJ7
- Brand: Dell
- Part #: Y9CJ7
- Alt. Part #: 0Y9CJ7
- Specs:-
- :: Type: Dual SD card reader
- :: Condition: New
- :: Compatibility: Dell PowerEdge M640 / FC640 Systems
- :: MPN: 0Y9CJ7
- Warranty: 1 (one) year Tekmart Africa warranty
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INT0406251
**Eligible for immediate collection / shipping upon order confirmation*
This SKU: 0Y9CJ7, is a Dell part number, specifically for a Dell PowerEdge Dual Micro SD Reader Riser Card.
This card is used in Dell PowerEdge M640 and FC640 servers. It's also sometimes referred to by the part number Y9CJ7-without the "0" at the start of the part number.
These cards are important in Dell PowerEdge M640 and FC640 servers for several key reasons, primarily related to operating system boot and redundancy:
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::OS Boot Device: In many server configurations, especially blade servers like the M640 and FC640, the operating system (OS) can be installed and booted directly from an SD card. This is a common practice for hypervisors like VMware ESXi or other lightweight server operating systems, as it frees up valuable traditional hard drive bays for data storage. This card provides the necessary interface for these SD cards.
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::Redundancy (Mirror Mode): A significant advantage of the "dual micro SD reader" aspect is the ability to configure the SD cards in a mirrored (RAID-1) configuration. This means that data is replicated across both SD cards. If one SD card fails, the server can continue to operate seamlessly using the other, preventing downtime and data loss related to the OS boot device. This redundancy is crucial for maintaining high availability in server environments.
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::Space and Cost Efficiency: Using SD cards for the OS boot provides a compact and often more cost-effective solution compared to dedicating traditional hard drives or SSDs solely for the OS. This allows more drive bays to be used for primary data storage, maximizing the server's capacity for its main workload.
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::Simplified Management: The Internal Dual SD Module (IDSDM), which this card is a part of, often integrates with Dell's iDRAC (Integrated Dell Remote Access Controller). This allows for remote management and monitoring of the SD cards, including their health and the status of the mirror, even if the server's main OS is not responsive.
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