Enterprise Performance HDD
The 12.0 Gbit/s SAS interface AL15SEB Series Enterprise Performance HDDs provide up to 2.4 TB capacity and 10,500rpm performance with Enterprise-class reliability.
Engineered for mission critical IT operations, including database servers and hybrid storage platforms, AL15SE Series provides a range of models including 512 native (512n), or emulated 512 (512e) or 4K native(4Kn) sector length technologies for suitable application and operating system compatibility.
Toshiba Persistent Write Cache technology protects against data loss in the event of unexpected power loss, and helps maintain suitable performance and data reliability for high-duty cycle Mission Critical environments.
2400, 1800, 1200, 900 and 600 GB Capacity (Advanced Format sector technology models)
1200, 900, 600, 300GB (512n sector technology models)
Space Efficient, Power Saving 2.5-inch Form Factor
12.0 Gbit/s SAS Interface for Better Performance
10,500 rpm Performance
Industry Leading Average Latency (2.86ms)
24/7 Mission Critical Workload Performance and Data Reliability
512n sector length support in all capacities for optimum legacy application compatibility
Toshiba Persistent Write Cache Technology
Sanitize Instant Erase (SIE) Option
Tier 1 Mission-Critical Servers and RAID Storage
Tier 1 Hybrid Storage platforms
Servers hosting transaction-based applications
Rack-Optimized Data Centers
Content Serving with low-latency requirements
Software-defined and Converged Storage architecture
Mission-Critical Server Boot and Logging
4K native ( 4Kn )
4K native ( 4Kn ) , SIE
512 emulation ( 512e )
512 emulation ( 512e ) , SIE
12 Gbit/s SAS
Data Transfer Speed
( Sustained )
( Idle - A )
230 g Max
512 native ( 512n )
512 native ( 512e ) , SIE
12 Gbit/s SAS
Data Transfer Speed (Sustained)
Power Consumption ( Idle - A )
230 g Max
Product image may represent a design model.
Definition of capacity: A gigabyte (GB) as 1,000,000,000 bytes and a terabyte (TB) as 1,000,000,000,000 bytes. A computer operating system, however, reports storage capacity using powers of 2 for the definition of 1GB = 230 = 1,073,741,824 bytes and therefore shows less storage capacity. Available storage capacity (including examples of various media files) will vary based on file size, formatting, settings, software and operating system, such as Microsoft Operating System and/or pre-installed software applications, or media content. Actual formatted capacity may vary.
A kibibyte (KiB) means 210, or 1,024 bytes, a mebibyte (MiB) means 220, or 1,048,576 bytes, and a gibibyte (GiB) means 230, or 1,073,741,824 bytes.
MTTF (Mean Time to Failure) is not a guarantee or estimate of product life; it is a statistical value related to mean failure rates for a large number of products which may not accurately reflect actual operation. Actual operating life of the product may be different from the MTTF.
Read and write speed may vary depending on the host device, read and write conditions, and file size.
SIE: Sanitize Instant Erase. SIE is a function to invalidate the data recorded on the magnetic disks at a blink.
"3.5-inch" mean the form factor of HDDs. They do not indicate drive's physical size.
PWC (Persistent Write Cache) with PLP (Power Loss Protection) : PWC with PLP is a function to handle the write data that the drive reports "Normal completion" to the host but not being stored to hard disk media yet. The write data may be written to the commanded LBA on the hard disk media. The un-written data to hard disk media is stored to Flash memory using back up power by PLP when the power supply to the drive suddenly is shut down. And, after PLP operation, it may be required more time to start up the drive than in case of normal shutdown. 1) PLP does not secure data in the mode of all the power shutdowns. When power supplies other than recommended procedure are intercepted, data might be lost. 2) In the power shutdown before it reports on the Write completion, data not anticipated might be lost.
PLP (Power Loss Protection): PLP supports to record data in buffer memory to hard disk media utilizing back electromotive force along with media rotation inertia in case of sudden supply shut down.
Workload is a measure of the data throughput of the year, and it is defined as the amount of data written, read or verified by commands from the host system.
| Stock code || SH2tf1200-N|
| Brand || Toshiba|
| Series || Enterprise (512n)|
| Model || AL15SEB120N|
| Type || 2.5" SAS 12Gb/s|
| ROHS || Y|
| Date added || 19/12/2017|
AL15SEB120N Spec Information
| Capacity || 1.2TB|
| Form Factor / Drive Height || 15mm|
| RPM || 10500rpm|
| Platter size || 2.5"|
| Access Time || ?|
| RAM/Cache || 128MB|
| Guarantee || 5yr|
| Reliability || 2.0 million hours MTBF|
| Weight (kg) || 0.2kg|
| Watts || 8.1W|
| Watts (Idle) || 4.5W|
| Bels (Idle) || 3.1|
| Shock (Operating) || 100g/2ms|
| Shock (Non-Operating) || 400g/2ms|
Seagate Exos 7E2000 (Enterprise Capacity 2.5 HDD) (4Kn) ST2000NX0263 2.5" SAS 12Gb/s 2TB 7200rpm |
Seagate Exos 7E2000 (Enterprise Capacity 2.5 HDD) (512e) SED ST2000NX0343 2.5" SAS 12Gb/s 2TB 7200rpm |
Seagate Exos 7E2000 (Enterprise Capacity 2.5 HDD) (512n) ST2000NX0433 2.5" SAS 12Gb/s 2TB 7200rpm |
Seagate Exos 7E2000 (Enterprise Capacity 2.5 HDD) (512e) ST2000NX0273 2.5" SAS 12Gb/s 2TB 7200rpm |
Seagate Exos 15E900 (Enterprise Performance 15K HDD v6) (512n) ST900MP0006 2.5" SAS 12Gb/s 900GB 15000rpm |
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