HPE AL15SEB120N 1.2TB SAS 12G 10K 2.5 HDD

HPE AL15SEB120N 1.2TB SAS 12G 10K Class 2.5 Inch Hard Drive

AL15SEB120N is a drive model number from the Toshiba AL15SEB enterprise range, listed on our site under HPE server drives. It is a 1.2TB, 2.5 inch hard drive with a 12Gb/s SAS interface. According to the Toshiba product manual, it spins at 10,500 rpm, which places it in the 10K performance class, and it uses native 512-byte (512n) sectors with a 128MiB buffer.

Drive mechanisms like this one are found inside branded server drives, and an AL15SEB120N label is often what an engineer sees when they pull a 1.2TB 10K disk from a server. This page explains what the model number tells you and how to make sure a replacement matches your system. The drive suits mixed application workloads, virtual machine storage and databases that need more than Midline response times.

Euroland IT Store lists the AL15SEB120N in New and Refurbished condition, subject to current stock.

HPE AL15SEB120N Technical Specifications

What Is The HPE AL15SEB120N?

AL15SEB120N is a manufacturer model number, not an HPE option kit or spare number. The Toshiba manual for this series uses the final “N” to mark the 512n sector format. HPE and other server vendors buy drives from several makers and supply them under their own part numbers, often with their own firmware and carrier.

That is why the exact label details matter. If your failed drive shows an HPE spare or option number next to AL15SEB120N, that HPE number is the most reliable thing to order against, because it covers firmware and carrier as well as the mechanism. If the label only shows AL15SEB120N, check with us before ordering so we can confirm the right version for your server.

Why 512n Matters For This Drive

A 512n drive uses 512-byte physical sectors, so there is no translation layer between logical and physical blocks. This avoids the alignment issues that can affect 512e drives on older operating systems and software. Practically every RAID controller and operating system in use today supports 512n, which makes this format a safe choice when you are adding a drive to an existing array of 512n disks.

Mixing 512n and 512e drives in one logical drive is generally best avoided. Keep the format the same as the other members of the array.

10,500 rpm And The 10K Class

The AL15SEB series runs slightly faster than a traditional 10,000 rpm drive. Toshiba gives an average rotational latency of about 2.86 milliseconds. In a RAID set with 10K drives from other makers, the controller simply treats it as another 10K-class member.

New HPE AL15SEB120N

New stock suits buyers who want an unused drive for a planned upgrade or for spare stock. The product page sets out the condition and warranty for New units.

Refurbished HPE AL15SEB120N

Refurbished stock offers a lower-cost route when replacing a failed 1.2TB 10K drive in a server already in service. Condition and warranty for Refurbished units appear on the product page.

Compatibility

Because AL15SEB120N is a drive model rather than an HPE option number, compatibility depends on the firmware and carrier supplied with it. Before ordering, please check:

• Your server make, model and generation
• The drive bay type (for HPE: G7 tray, Gen8 to Gen10 SmartDrive Carrier, or Gen10 Plus and later Basic Carrier)
• Your RAID controller model and firmware level
• Every number printed on the label of the drive you are replacing

Send these details to our team and we will confirm whether this listing matches your system.

HPE 1.2TB 10K Drives To Compare

If your label shows an HPE part number, these HPE 1.2TB listings may be the better match:

• HPE 872479-B21: 1.2TB SAS 12G SFF SC option kit
• HPE 872737-001: 1.2TB SAS 12G SFF SC spare listing
• HPE 873012-B21: 1.2TB SAS 10K 2.5 inch listing
• HPE 873036-001: 1.2TB SAS 10K 2.5 inch listing
• HPE P13245-001: 1.2TB SAS 12G 10K 2.5 inch listing
• HPE 840457-001: 1.2TB SAS 6G 10K SFF listing

Steps To Confirm A Match

1. Photograph the label on the failed drive, front and back.
2. Note any HPE spare (ending -001) or option (ending -B21) number.
3. Check whether the drive came in a carrier and what type.
4. Confirm 1.2TB, SAS 12G and 10K-class speed.
5. Check the other drives in the array are 512n.

Vendor Firmware And Branded Drives

Server makers test drives with their own controllers and load firmware that supports their monitoring tools. A drive with matching vendor firmware will usually report health data correctly and avoid “unsupported drive” warnings. That is the main reason to match the full label rather than the mechanism alone, even when two drives share the same model number.

Buying HPE AL15SEB120N in the UK

Euroland supplies UK businesses, IT teams, resellers and repair workshops with server drives and spares. For this listing, condition, warranty, stock and delivery notes sit on the AL15SEB120N product page. Orders above £100 + VAT are delivered free to UK mainland addresses. Please send your server model and all the numbers on your existing drive to our team before ordering, or call 0203 209 6002 for help.

Frequently Asked Questions

Is the AL15SEB120N compatible with my HPE server?

That depends on the firmware and carrier supplied, so send us your server model and the numbers on your current drive and we will confirm the match before you order.

Is the AL15SEB120N a 10K drive?

It is a 10K-class drive, and the Toshiba manual gives its spindle speed as 10,500 rpm with native 512-byte sectors and a 12Gb/s SAS interface.

What is the difference between New and Refurbished AL15SEB120N units?

New units are unused, while Refurbished units are previously used drives offered at a lower price for replacing failed disks.

What warranty does the AL15SEB120N come with?

The warranty for New and Refurbished units is shown on the product page, and our team can confirm the terms.

Can the AL15SEB120N be delivered to anywhere in the UK?

Yes, AL15SEB120N orders go to any UK address, and those above £100 + VAT travel free to the UK mainland.