DELL
DELL COMPELLENT ST4000NM0023 4TB 7.2K SAS 3.5" internal hard drive
A 4TB 3.5-inch SAS drive spinning at 7200 RPM with a 128MB cache for nearline storage arrays
- 4 TB capacity stores large datasets and media libraries
- 7200 RPM spindle speed delivers responsive data access for demanding workloads
- 128 MB cache buffers bursts to smooth read and write performance
- SAS 6 Gb/s interface provides reliable connectivity for enterprise storage arrays
- 5 inch form factor fits standard drive bays in servers and workstations
4 TB SAS drive for nearline storage
The Dell Compellent ST4000NM0023 is a 4 TB 3.5 inch internal hard drive built for nearline SAS environments. It spins at 7200 RPM and provides a 128 MB cache to smooth sustained workloads. The drive is supplied new and targets arrays that need high capacity with enterprise SAS connectivity.
SAS 6 Gb/s interface practical limits
The 6 Gb/s SAS link caps maximum throughput at the interface level, so sequential transfers cannot exceed that bandwidth. Random I/O performance will depend on the controller and queue depth rather than the drive alone. Systems limited to 3 Gb/s backplanes will operate at the lower speed. Workloads demanding higher sustained throughput need a faster interface generation.
128 MB cache and 3.5 inch SAS connector implications
The 128 MB buffer helps absorb write bursts and reduces rotational latency during mixed read-write patterns. Standard 3.5 inch SAS power and data connectors fit common hot-swap trays and backplanes without adapters. At 2.0 pound the drive seats securely in enterprise chassis. The 90 day warranty period reflects the supplier's coverage for this unit.
Punti di forza
- 4 TB capacity stores large datasets and media libraries
- 7200 RPM spindle speed delivers responsive data access for demanding workloads
- 128 MB cache buffers bursts to smooth read and write performance
- SAS 6 Gb/s interface provides reliable connectivity for enterprise storage arrays
- 5 inch form factor fits standard drive bays in servers and workstations
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Domande su questo articolo
Should I choose the 4TB capacity for bulk storage or a smaller drive for the operating system?
The 4TB capacity is designed for nearline bulk storage; a smaller, faster drive is better suited for the operating system.
What does the 7200RPM speed deliver in a real server?
7200RPM provides consistent sequential throughput for high-capacity nearline workloads such as backups and archives.
How does the SAS 6Gb/s interface limit actual transfer rates?
The SAS 6Gb/s link caps the maximum interface bandwidth at 6 gigabits per second, which bounds real-world sustained transfers.
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