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Global leader in new, refurbished, compatible & discontinued multivendor IT-Hardware, spares and print supplies.
| Part Number: | 861590-B21 |
|---|---|
| Manufacturer: | HPE |
| Backup & Storage: | Server Hard Drive |
| Model: | ML350 Gen9 |
| Description: | Buy HPE 861590-B21 8TB SAS 12G 7.2K 3.5" HDD. Genuine part with fast worldwide shipping from Euroland IT Store UK. |
| Availability: | In Stock |
With 8TB in a single 3.5in bay, the HPE 861590-B21 is one of the larger Midline drives of the ProLiant Gen9 and Gen10 period. It is a helium-filled disk with a 12Gb/s SAS interface, a 7,200 RPM spindle, 512e sector format and digitally signed firmware, supplied in an HPE SmartCarrier for hot-plug bays.
Storage-heavy servers are where it earns its place: backup appliances, file servers, video archives and scale-out storage nodes built on DL380 Gen10 or DL180 Gen10 hardware. The high capacity per bay keeps rack space and power use down for a given amount of storage.
The 861590-B21 is sold by Euroland IT Store in New and Refurbished condition, subject to current stock.
| Specification | Details |
|---|---|
| Manufacturer | HPE |
| Option Kit | 861590-B21 |
| Spare Part | 861607-001 |
| Drive Model | MB008000JWAYH (per suppliers) |
| Capacity | 8TB |
| Interface | SAS 12Gb/s |
| Speed | 7,200 RPM |
| Sector Format | 512e |
| Technology | Helium-sealed |
| Form Factor / Carrier | 3.5in LFF, SmartCarrier (SC), hot-plug |
| Class | Midline |
| Condition | New or Refurbished, subject to stock |
HPE uses 861590-B21 as the option kit number for this 8TB drive. PartSurfer pairs it with spare 861607-001, which it describes as an 8TB SAS drive at 12Gb/s and 7,200 RPM in a smart carrier, for Gen8 or Gen9 servers or newer. The spare’s where-used list names the drive as an HPE 8TB 12G SAS 7.2K LFF 512e SC HDD.
An authorised parts distributor and another specialist both record MB008000JWAYH as the drive model. Having the option, spare and model to hand makes it easy to match an existing drive, whichever label is easiest to read.
Helium is less dense than air, so the platters spin with less drag and turbulence. That lets manufacturers fit more platters into a standard 3.5in case, which is how drives like this reach 8TB. The drive is sealed at the factory and is not meant to be opened.
The 512e format stores data in 4K physical sectors while showing 512-byte sectors to the host. Modern Windows Server, VMware and Linux versions handle this well. To avoid slow read-modify-write cycles, make sure partitions are 4K aligned, which current installers do by default. Very old operating systems may not cope, so check if you run legacy software.
New units are the natural choice for a fresh storage build or for buyers who prefer drives with no previous power-on time. See the listing for condition and warranty details.
Refurbished drives let you replace a failed member or add capacity to an existing Gen10 server at a lower price. Many maintenance companies keep them as stock spares. The product page sets out the condition and warranty.
PartSurfer shows spare 861607-001 in a wide range of systems, including:
HPE also states the spare is for Gen8 and Gen9 servers or newer. Please check your server has LFF SmartCarrier bays and a SAS controller, and read the label on your current drive before ordering.
The HPE spare for this option is 861607-001, and suppliers list MB008000JWAYH as the drive model. If you are building a mixed estate or need a smaller SAS 12G LFF drive for another server, we also stock these 3.5in 7.2K options and spares:
Smaller drives will not add capacity to an array of 8TB members, so use them only where they suit the target server. The server hard drive category lists more.
Large disks take longer to rebuild, and the risk of a second fault grows with rebuild time. With 8TB members, RAID 6 or RAID 60 is a sensible baseline because it survives two failed drives. Configure an online spare if you have a free bay, so the controller can start rebuilding straight away. Regular backups remain essential, as RAID protects against disk failure, not deletion or corruption.
Euroland sells to businesses, IT departments, resellers and repair specialists across the UK. The 861590-B21 listing carries the condition, warranty, stock position and delivery terms. Free shipping to the UK mainland applies once an order passes £100 + VAT. Let us know your server model and the numbers on the drive you are replacing, or speak to sales on 0203 209 6002.
Yes, 861590-B21 is the option kit number and 861607-001 is the HPE spare for the same 8TB SAS 12G Midline helium 512e drive.
PartSurfer lists its spare in ProLiant DL360, DL380, DL385, DL160 and DL180 Gen10 servers and StoreEasy 1660 systems, and HPE rates it for Gen8 and Gen9 or newer.
New is ideal for new storage builds, and Refurbished offers a lower cost option for replacements and spares.
The product page states the warranty for each condition, so please review it before you buy.
Yes, we deliver across the UK, and orders over £100 + VAT ship free to the mainland.
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