Description
Product Details of HP 405835-001 512MB
The HP 405835-001 512MB BBWC is a component designed for use with the Smart Array P400 Controller, a RAID controller used in HP servers. This BBWC (Battery-Backed Write Cache) module provides enhanced performance and data protection for the Smart Array P400 Controller. In this article, we will discuss the HP 405835-001 512MB BBWC in detail, including its features, benefits, and how it works.
Features of HP 405835-001 512MB BBWC
The HP 405835-001 512MB BBWC is a compact module that provides 512MB of cache memory for the Smart Array P400 Controller. The cache memory is backed up by a battery that can keep the data stored in the cache memory safe for up to 72 hours in case of a power outage. This is important because the data stored in the cache memory is volatile and can be lost in case of a power failure.
Benefits of HP 405835-001 512MB BBWC
The HP 405835-001 512MB BBWC provides several benefits to the Smart Array P400 Controller users. Some of the key benefits are:
- Improved Performance: The BBWC module improves the performance of the Smart Array P400 Controller by caching frequently accessed data in the cache memory. This reduces the time required to access the data from the hard drives, resulting in improved performance.
- Data Protection: The BBWC module provides data protection by backing up the cache memory with a battery. In case of a power outage, the battery ensures that the data stored in the cache memory is not lost.
- Higher Capacity: The 512MB cache memory provided by the BBWC module is larger than the cache memory provided by the Smart Array P400 Controller itself. This allows the controller to cache more data, resulting in improved performance.
HP 405835-001 512MB BBWC Works
The HP 405835-001 512MB BBWC works by caching frequently accessed data in its cache memory. When a read request is received by the Smart Array P400 Controller, it first checks if the data is available in the cache memory. If the data is available in the cache memory, it is retrieved from the cache memory, which is much faster than retrieving the data from the hard drives. If the data is not available in the cache memory, it is retrieved from the hard drives and then stored in the cache memory for future use.
Similarly, when a write request is received by the Smart Array P400 Controller, the data is first stored in the cache memory. The controller then acknowledges the write request to the host system, even though the data has not yet been written to the hard drives. This is because the data is stored in the cache memory and will be written to the hard drives when the controller is idle. This process is called write caching.
The data stored in the cache memory is volatile and can be lost in case of a power outage. To prevent this, the HP 405835-001 512MB BBWC module has a battery backup that can keep the data stored in the cache memory safe for up to 72 hours in case of a power outage. The battery charges itself when the server is on and can keep the data safe even if the server is turned off.
Overall, the HP 405835-001 512MB BBWC is an essential component for users of the Smart Array P400 Controller who require improved performance and data protection. This module provides several benefits, including improved performance, data protection, and higher capacity. The module works by caching frequently accessed data in its cache memory and backing up the data with a battery to prevent data loss in case of a power outage.
General Information about the HP 405835-001
- Manufacturer: HP
- Part Number or SKU# 405835-001
- Device Type: BBWC Module
Technical Information
- Cache Upgrad
- Battery Cable Assembly: 28AWG, 16-Pin – 29.2cm (11.5in) Long
- Battery Details: Ni-MH, 4.8V, 5000mAh
- Upgrade Type: System specific
- Memory Type: DRAM
Expansion & Connectivity
- Compatible Slots: 1 x memory
Compatibility Information
- HPE ProLiant BL Series: BL480c BL680c Gen5
- HPE ProLiant DL Series: DL120 Gen5 DL160 Gen5 DL165 Gen5 DL165 Gen5p DL165 Gen5p DL180 Gen5 DL185 Gen5 DL320 Gen4 DL320 Gen5 DL320 Gen5p DL320s DL360 Gen5 DL365 Gen1 DL365 Gen5 DL380 Gen5 DL385 Gen2 DL385 Gen5 DL385 Gen5p DL580 Gen4 DL580 Gen5 DL585 Gen2 DL585 Gen5 DL785 Gen5 DL785 Gen6 Gen7
- HPE ProLiant ML Series: ML310 Gen3 ML310 Gen4 ML310 Gen5 ML310 Gen5p ML350 Gen5 ML370 Gen5 ML570 Gen4
Contact us or ask for live chat/help if you have any questions about the compatibility of this item to ensure the model’s matching features with your current system.
