Dell PowerVault ME5012 vs ME5024
Dell PowerVault ME5012 (3.5-inch)
Dell PowerVault ME5024 (2.5-inch)
The Dell PowerVault ME5012 and ME5024 are the two 2U base arrays in the same PowerVault ME5 family, and they are far more alike than they are different. Both ship as 2U enclosures with the same dual-active controllers, the same per-controller cache, the same host-connectivity options (32Gb Fibre Channel, 25GbE and 10Gbase-T iSCSI, or 12Gb SAS), and the same ME5 management software with ADAPT distributed RAID. The single meaningful hardware difference is the drive chassis: the ME5012 holds 12 large-format 3.5-inch drives, while the ME5024 packs 24 small-format 2.5-inch drives into the same 2U. That one choice drives everything downstream — how much raw capacity you get per rack unit, what drive types you can fit, and the balance between bulk capacity and spindle/SSD count. This page lays out the differences so a buyer can match the chassis to the workload rather than over-buying. Because the controllers and software are identical, you are not choosing a "better" array; you are choosing the drive form factor that fits your media and capacity plan.
Side by side
| Dell PowerVault ME5012 (3.5-inch) | Dell PowerVault ME5024 (2.5-inch) | |
|---|---|---|
| Drive bays / form factor | 12 x 3.5-inch bays (also accepts 2.5-inch drives in carriers) | 24 x 2.5-inch bays |
| Chassis size | 2U base enclosure | 2U base enclosure |
| Best-fit media | High-capacity 3.5-inch nearline SAS HDDs for bulk capacity; SSDs and 2.5-inch drives also supported | 2.5-inch SAS SSDs and 10K SAS HDDs for higher spindle/flash density per U |
| Controllers & cache | Dual-active controllers, Intel Xeon, 16GB cache per controller (same as ME5024) | Dual-active controllers, Intel Xeon, 16GB cache per controller (same as ME5012) |
| Host connectivity | 32Gb FC, 25GbE iSCSI, 10Gbase-T iSCSI, or 12Gb SAS (per-controller options) | Same options: 32Gb FC, 25GbE iSCSI, 10Gbase-T iSCSI, or 12Gb SAS |
| Software / data protection | PowerVault ME5 firmware with ADAPT distributed RAID plus RAID 1/5/6/10 | Identical PowerVault ME5 firmware and ADAPT distributed RAID |
| Expansion | Scales out with ME412/ME424 2U enclosures and the ME484 dense (84-drive) enclosure | Scales out with ME412/ME424 2U enclosures and the ME484 dense (84-drive) enclosure |
| Typical use case | Backup targets, media/file repositories, capacity-tier and archive workloads | Transactional, virtualized, and mixed/all-flash workloads needing IOPS density |
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Dell PowerVault ME5012 (3.5-inch)
Dell PowerVault ME5024 (2.5-inch)
Choose the ME5012 (3.5-inch) for bulk capacity
Pick the ME5012 when your priority is the most usable terabytes per dollar and per rack unit. Large-format 3.5-inch nearline SAS HDDs reach the highest individual drive capacities, so 12 bays of high-capacity disk can deliver a very large raw pool in a single 2U enclosure. This makes the ME5012 the natural base for backup and recovery targets, video and media repositories, file and object capacity tiers, and archive or cold-data workloads where sequential throughput and cost-per-TB matter more than peak random IOPS. It is also the better starting point if you expect to grow primarily by adding the dense ME484 capacity enclosures behind a high-capacity base. Note the ME5012 can still accept 2.5-inch drives in carriers, giving you some flexibility if part of the workload later needs flash.
Choose the ME5024 (2.5-inch) for density and IOPS
Pick the ME5024 when you want more drives and more flash in the same 2U. Twenty-four 2.5-inch bays let you populate the array with SAS SSDs or 10K SAS drives for higher spindle and flash density, which generally translates into more random IOPS and better performance for transactional, database, and virtualized workloads. The smaller form factor also tends to be more power- and space-efficient per drive, which can matter in dense racks. If your environment is VMware or general-purpose virtualization, mixed read/write databases, or moving toward all-flash, the ME5024's 24-bay layout is the better fit. You still get the identical ME5 controllers, ADAPT software, and host options, so you lose nothing on management or connectivity by choosing the 2.5-inch chassis.
There is no overall winner here because the ME5012 and ME5024 share the same controllers, cache, host connectivity, and ME5 software with ADAPT — the choice is purely about drive form factor and what it optimizes. Choose the ME5012 if you are buying capacity: 12 large 3.5-inch bays give you the lowest cost-per-TB and the highest bulk capacity per 2U, ideal for backup, media, file, and archive tiers. Choose the ME5024 if you are buying performance density: 24 small 2.5-inch bays let you pack in SSDs or 10K SAS drives for more IOPS in the same space, ideal for virtualized and transactional workloads. Many buyers actually run both form factors in one estate — an ME5024 for hot, performance-sensitive data and an ME5012 (often expanded with ME484 enclosures) for capacity — because they manage identically and can use the same expansion roadmap. Match the chassis to the media and the workload, and either array delivers the same enterprise feature set.
Talk to a specialistFrequently asked
What is the actual difference between the ME5012 and ME5024?
The difference is the drive chassis. The ME5012 is a 2U enclosure with 12 large-format 3.5-inch drive bays, and the ME5024 is a 2U enclosure with 24 small-format 2.5-inch bays. Everything else — the dual-active controllers, the per-controller cache, the 32Gb FC / 25GbE and 10Gbase-T iSCSI / 12Gb SAS host options, and the ME5 firmware with ADAPT distributed RAID — is the same across both. So you are choosing drive form factor and density, not a different class of array.
Which one gives more storage capacity?
It depends on the drives. The ME5012's 12 bays accept the largest-capacity 3.5-inch nearline SAS HDDs, so for raw bulk capacity per enclosure it usually wins, which is why it suits backup and archive. The ME5024 has twice the bay count (24) but in the smaller 2.5-inch form factor, which favors drive count, flash density, and IOPS rather than maximum raw terabytes. Both arrays can scale much further by attaching expansion enclosures, including the dense 84-drive ME484, so neither is a dead end on capacity. For an exact configured capacity, confirm the current supported drive sizes with Uniqcli.
Can I mix them or expand either one later?
Yes. Both the ME5012 and ME5024 use the same PowerVault ME5 expansion approach and can grow with ME412/ME424 2U expansion enclosures and the dense ME484 enclosure. Because the two base arrays are managed identically and share the same software, it is common to deploy both in the same environment — for example, an ME5024 populated with SSDs for performance-tier data and an ME5012 (or ME5012 plus ME484 enclosures) for a high-capacity tier. Uniqcli can help you size the base array and expansion roadmap to your workload.
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