RAID Controllers & Batteries
Dell PowerEdge 840 RAID Controllers & Batteries
The Dell PowerEdge 840 server has several controller options available for internal RAID configurations. The PowerEdge 840 will support RAID 0, 1 and non-RAID configurations for up to four (4) SATA hard drives by way of direct connection to the system board. For up to six (6) SATA drives, an add-in adapter card (XD084) can be used.
For SAS drives, the PowerEdge 840 employs the PERC 5/iR or 6/iR controller and can support RAID 0, 1 and non-RAID configurations for hot-swap and non hot-swap drives.
For more advanced RAID configurations, PERC 5/i controllers offer RAID 0, 1, 5, 10 & 50 for either SAS or SATA hot-swap hard drives. The PERC 6/i controller introduced integrated memory cache and adds support for RAID 6 & 60 configurations.
A rechargeable lithium-ion battery back-up (BBU) was provided with PERC 5/i and 6/i models to protect write cache in the event of a sudden power failure. These batteries are known to eventually lose their ability to hold a charge. When this happens, the battery must be replaced.
Unless otherwise noted, controllers have been tested and pulled from working servers. Controllers and batteries are backed by our 90-day parts replacement warranty.