Two hard drives have been badly photoshopped onto a desk in a high-rise office.

Earlier this month, Seagate introduced an 18TB entry in its Ironwolf Professional lineup. Western Digital answered Wednesday morning with 18TB variations of its Pink Professional and Purple consumer-targeted strains. The brand new 18TB Pink Professional and Purple drives comply with the corporate’s first 18TB CMR drive, a Gold launched in mid-July.
Each NAS (Community Connected Storage) drives—Seagate’s Ironwolf Professional and Western Digital’s Pink Professional—are CMR drives and never the extra performance-problematic SMR expertise. Western Digital’s announcement of the 18TB Purple didn’t point out both SMR or CMR in any respect, which we should assume means it’s an SMR drive.

Seagate’s 18TB Ironwolf Professional is obtainable for ordering at choose retailers now for $580 retail, however precise inventory is not anticipated till mid-October. Western 18TB Gold drives can be found now for $593; the 18TB Pink Professional and Purple drives are anticipated someday in October however no costs have been introduced but.

Navigating the Western Digital rainbow

Should you’re confused about Western Digital’s “coloration” scheme for labeling drives, here is a helpful desk:

Label coloration Common class What it means
Inexperienced Shopper Inexperienced is the bottom efficiency “coloration” and supposed to indicate extra energy effectivity. This line has had fairly severe efficiency and reliability issues previously. Three-year guarantee.
Blue Shopper Generic shopper drive. No explicit ensures of something past “you plug it in and it really works.” Normally cheap and comparatively low energy consumption. Not beneficial for demanding workloads.Three-year guarantee.
Black Efficiency 7200RPM, loads of cache, <sturdy>normally</sturdy> CMR. Besides the two.5″, 1TB WD10SPSX, which is SMR. Not beneficial for NAS. 5-year guarantee.
Pink NAS Constructed for NAS; prioritizes reliability and vibration isolation, not essentially pace. 2TB-6TB fashions are SMR. All future Pink (non-Plus, non-Professional) fashions shall be SMR. RPM not assured. Three-year guarantee.
Pink Plus NAS That is actually WD Pink however assured to not have any SMR fashions.
Pink Professional NAS WD Pink, however larger efficiency. Principally the most effective options of Pink and Black in a single drive. Assured to not be SMR. All present fashions are 7200RPM and can most likely proceed to be so. 5-year guarantee.
Purple Surveillance Purple drives are focused at workloads with heaps and plenty of streaming writes and only a few reads—the most typical use being safety cameras and DVRs. Not beneficial for NAS or general-purpose workloads. Three-year guarantee.
Gold Enterprise A really particular subset of WD’s Ultrastar knowledge middle drives. The Gold label ensures SATA entry, SMR expertise, helium-filled enclosures, and a couple of.5M hour (285 12 months) MTBF (Imply Time Between Failures). Though WD Gold is marketed as “Enterprise,” smaller prospects can readily purchase particular person Gold drives at retail. 5-year guarantee.

The entire above refers to standard laborious disk drives—however you too can purchase Inexperienced, Blue, Pink, and Black SSDs. Starting subsequent month, 1TB Purple SD playing cards shall be obtainable as nicely.

The distinctions between the label colours for SSDs is sadly even murkier than it’s for the traditional drives. Western Digital’s knowledge sheets for these consumer-targeted merchandise is extraordinarily sparse and doesn’t disclose essential data such because the variety of voltage ranges saved per NAND cell. Generally, the same breakdown needs to be anticipated—the Inexperienced and Blue labels will provide the bottom efficiency, Pink will provide larger write endurance, and Black presents larger efficiency.

Though the Inexperienced label is particularly marketed as decrease energy consumption, its personal knowledge sheet doesn’t bear that declare out—Western Digital specifies a median lively energy draw of 80mW for a 2TB Inexperienced SSD and 60mW for a 2TB Blue or Pink SSD.

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