Huawei OceanStor SSD spare parts — SAS and SATA (1,100 P/Ns)

Capacity and form factor together

Capacity alone does not identify a part here, and the table shows why. 3.84TB appears as 261 2.5-inch parts, 59 3.5-inch parts and 6 palm parts — three different physical items with the same number on the label.

Three forms, three different slots

• 2.5-inch — 879 part numbers. The volume form for OceanStor V5 and V5 Kunpeng front bays. This is where most replacements happen.
• 3.5-inch — 194 part numbers. A 2.5-inch drive in a 3.5-inch carrier, used where the chassis bay is the larger size. The drive inside is not necessarily different; the carrier is, and that makes it a different part number.
• Palm drive — 18 part numbers. A 7-inch module for high-density enclosures. It will not fit a 2.5-inch slot and cannot be substituted in either direction.
• Unstated — 9 part numbers. The description omits the form. Check before ordering; these are mostly older or multi-drive entries.

Encryption: 82 part numbers

82 of the 1100 SSD parts are encryption variants. They carry their own part numbers and cannot be mixed into a non-encrypted pool’s role, nor can a non-encrypted drive be added to an encrypted one.

The table above is the first ten; the rest are in the full list below with Encryption in the description.

32.6% fit exactly one model

359 of 1100 fit a single storage model, 225 fit two or three, 450 fit four to nine, and 66 fit ten or more — the widest reaches 33 models. SSD SAS sits in the middle: less tightly bound than NVMe, far more tightly bound than optical modules.

How many product families each part spans

A part that spans two families is genuinely shared hardware, not a catalogue duplication. The counts here are higher than for NVMe because SAS drives were carried across the V5 and V6 generations for longer.

The platforms that carry the most SSD part numbers

The mid-range V5 platforms dominate — 5310, 5510, 5610, 6810 — which is what a long service life with a wide drive list looks like in the data.

Which capacities travel furthest

A capacity with a high average model count is one that was qualified across many platforms — it is the safer band to hold as stock. A capacity with a low average is platform-specific, and holding it is a bet on one installed base.

SATA in a SAS catalogue: 13 part numbers

SATA drives appear in this list because they are qualified for some of the same platforms, not because they are interchangeable with SAS. 13 part numbers carry SATA in the description.

• SATA and SAS are separate part sets. Do not cross-reference between them on capacity alone.
• A SAS backplane usually accepts a SATA drive at the connector, but the platform qualification is what decides whether it works.
• SATA parts are a small minority here, so treat them as the exception when matching.

Why one capacity needs 326 part numbers

3.84TB is the largest band in this list, with 326 part numbers. That looks like duplication and is not: the count is the product of four independent choices, and each combination became its own FRU.

Two drives with the same capacity can differ in form, encryption, the platform generation they were qualified for, and the specific model list. Change any one of those and the part number changes. That is why the capacity column alone is never enough to order from.

Full part-number list, 1100 P/Ns

Sorted by capacity, then part number. 825 of the 1100 carry a documented substitution.

Before you order an SSD

• Read the form from the description: 2.5-inch, 3.5-inch carrier or palm drive.
• Check whether the pool is encrypted — 82 of these parts are encryption variants.
• Confirm the model, not the family. 359 of 1100 fit exactly one model.
• If the part number carries a -001 or -002 suffix, quote the suffix too.

Frequently asked questions

How do I tell a SAS SSD from a SATA SSD?

The interface is written in the official description. There is no separate interface column, so read the description rather than inferring from capacity.

Can I replace a 1.92TB SSD with a 3.84TB of the same family?

Physically yes if the model is qualified for both. Whether it is the right substitution is a capacity and endurance decision — check the Replaces column first.

What is the difference between a 2.5-inch and a 3.5-inch part number here?

The carrier. A 3.5-inch entry is usually the same drive class in a larger carrier, which is why the capacity and the endurance match while the part number does not.

Why do some rows show no model count?

The catalogue records the part without a model qualification list, usually for multi-drive or enclosure-level items. A dash means unknown, not zero.

Are these new or refurbished drives?

Both are available and they are quoted separately. The catalogue entry says nothing about condition; that is agreed per order and stated on the quotation.

Why is 3.84TB the largest band by part count?

Because it is the capacity that was carried across the most platform generations. The part count reflects qualification history, not current demand.