HPE 872846-B21 900GB SAS 15K SFF ST HDD

HPE 872846-B21 900GB SAS 15K SFF ST DS Hard Drive

The HPE 872846-B21 is a 900GB Enterprise hard drive that runs at 15,000 rpm on a dual-port 12Gb/s SAS link. It is a 2.5in small form factor drive in HPE’s standard (ST) carrier, and it uses digitally signed (DS) firmware. The matching HPE spare number is 873033-001.

This is the standard carrier counterpart of HPE’s 900GB 15K SmartCarrier drive. It is ordered by teams whose existing drives sit in standard carriers and who want the most space per bay that a 15K SFF disk of this family offers.

Both New and Refurbished 872846-B21 units are offered by Euroland IT Store, subject to stock levels.

HPE 872846-B21 Technical Specifications

What Is The HPE 872846-B21?

872846-B21 is HPE’s option number for a complete 900GB 15K drive in a standard carrier. Distributor records list the disk models EH000900JWCPN and EH000900JWHPP for it, with assembly numbers 867254-003 and 875217-003. The same disks are used in the SmartCarrier option 870759-B21.

Ordering by the exact number is the only way to be sure of the carrier. In the “ST” name, the letters tell you the tray type, and they are easy to miss. A drive with the right disk but the wrong carrier will not seat in the bay.

Reading HPE Drive Names: SFF, ST And DS

HPE packs a lot into a short drive description. “SFF” means small form factor, the 2.5in size. “ST” means the standard carrier, as opposed to “SC” for SmartCarrier or “SCC” for the SmartCarrier converter used in 3.5in bays. “DS” means the firmware is digitally signed by HPE.

Once you know these codes, you can read most HPE drive labels at a glance. For this drive the full description reads as 900GB, SAS, 15K, small form factor, standard carrier and digitally signed firmware.

New HPE 872846-B21

A new 872846-B21 is the right choice for a production array where every disk should start with no wear. Warranty terms for new units are on the product page.

Refurbished HPE 872846-B21

Refurbished units reduce cost when you need to replace a failed disk or build a spare stock for a group of systems. Please see the product page for the condition grade and warranty that apply.

Compatibility

• Replacement for drives labelled 872846-B21 or 873033-001
• HPE systems with 2.5in bays designed for the standard (ST) carrier

For HPE ProLiant Gen8, Gen9 and Gen10 servers that use SmartCarrier drives, the SmartCarrier option 870759-B21 is the usual choice instead. Check the carrier style and label of your current drive, the system model and the controller before you order.

Related Part Numbers

• HPE 873033-001 is HPE’s spare number for this drive.
• HPE 875217-003 is one of the assembly numbers for the 900GB disk inside.
• 870759-B21 and 870795-001 are the SmartCarrier option and spare built on the same disks.
• HPE 652589-B21 is a 900GB 6G SAS 10K 2.5in drive, for where 10K speed is enough.
• HPE 737574-001 is listed as a 600GB 12G SAS 15K 3.5in drive.
• Explore our server hard drives and drive caddies.

Confirming The Replacement

1. Check the carrier label for 872846-B21 or 873033-001.
2. Look for “ST” rather than “SC” in the drive description.
3. Confirm the array is built from 900GB 15K disks.
4. Make sure the failed bay is identified in your management tools.
5. Have a recent backup in place.

Rebuild Time With 900GB Disks

Large disks take longer to rebuild than small ones. A 900GB 15K drive may need several hours to resync, and the array is exposed to a second failure for that whole time. RAID 6 or RAID 10 gives more protection during that window than RAID 5. If you are still on RAID 5 with 900GB disks, it is worth discussing a change at the next maintenance window.

Buying HPE 872846-B21 in the UK

Euroland IT Store sells server parts to UK businesses, IT teams, resellers and repair firms. Condition, warranty, stock and delivery information for the 872846-B21 sit on the product page. Free shipping covers UK mainland orders that come to more than £100 + VAT. Our team will gladly check your system model and the numbers on your existing drive, or you can call 0203 209 6002.

Frequently Asked Questions

Is the 872846-B21 compatible with SmartCarrier ProLiant servers?

No, it uses HPE’s standard carrier, so SmartCarrier bays in ProLiant Gen8 to Gen10 servers need the 870759-B21 drive instead.

What do I gain from a New 872846-B21 over a Refurbished one?

A New drive has no previous use, while a Refurbished drive costs less and has the condition and warranty described on the product page.

Which warranty applies to the 872846-B21?

That depends on the condition you buy, and the terms are published on the product page.

Is UK delivery free for the 872846-B21?

Delivery is free to the UK mainland when your order is over £100 + VAT, and other delivery information is on the product page.

What does ST mean in the 872846-B21 description?

ST stands for HPE’s standard carrier, which is a different tray from the SmartCarrier (SC) used on most ProLiant Gen8 to Gen10 drives.