HPE Mission Critical 300GB Enterprise SAS Hard Drive (P40430-B21) – SAS 12Gb/s, 15000 RPM, CMR

The HPE Mission Critical 300GB (P40430-B21) is a 2.5-inch (SFF) 15000 RPM SAS 12Gb/s enterprise hard drive for servers and storage arrays. It suits IT teams maintaining existing servers, replacing failed drives or expanding RAID sets with performance-class SAS storage.

Low-latency enterprise SAS for databases and VMs.

Keeping Legacy and Performance Servers Running

Many servers still run performance-class SAS drives for databases and virtual machines. When a drive fails, the replacement must match interface, form factor and performance to rebuild the array cleanly.

The HPE Mission Critical 300GB provides 15000 RPM SAS 12Gb/s performance in a 2.5-inch (SFF) form factor, making it a direct fit for compatible server bays and RAID controllers.

Low Latency for Transactional Workloads

High spindle speed reduces seek time for random I/O, keeping databases and virtualised workloads responsive. The SAS 12Gb/s interface provides dual-port connectivity and full-duplex transfers on SAS HBAs and RAID controllers.

Drop-In Replacement for RAID Arrays

Matching the interface and form factor lets you rebuild an existing array without reconfiguration.

Setup Instructions

How to Install the HPE Mission Critical 300GB

1. Check the server supports this interface, capacity and form factor.
2. Mount the drive in the correct OEM carrier.
3. Hot-insert into the bay and confirm detection on the RAID controller.
4. Rebuild the array or assign the drive as a hot spare.