No. A mechanical drive as the system volume is the largest avoidable source of sluggishness in a modern computer, and the current 1TB BarraCuda is shingled on top of that. Boot from an SSD, however small, and use the BarraCuda for storage.
An operating system generates exactly the workload mechanical storage is worst at: many small reads and writes scattered across the disk, constantly, from dozens of processes at once. Every seek costs milliseconds that flash does not spend, and the effect compounds into the general feeling that a machine is slow.
This is one of the few upgrades where the difference is not a benchmark argument. Boot time, application launch, updates, search indexing and the responsiveness of the desktop under load all change noticeably, and they change for anyone regardless of what they use the machine for.
The current 1TB BarraCuda, the ST1000DM014, is shingled as well. An operating system volume does a lot of small random writing, which is the pattern shingled recording handles worst, so the drive is a poor fit for this role on two counts rather than one.
A small SSD is enough. The system, the applications and the working set fit comfortably in 500GB for most people, and everything else lives on the mechanical drive you already have. That split gets you the responsiveness benefit without paying flash prices for bulk capacity.
One piece of 2026 context that changes the usual advice: the NAND shortage repriced flash sharply, and solid-state storage now costs several times what mechanical storage costs per terabyte. Guidance written before that repricing tells you an SSD is barely more expensive, and that is no longer true. If you are buying capacity, a larger hard drive is the honest value answer; buy the SSD for the boot volume and the random-access work, where it earns its premium on behaviour rather than on price.
If the BarraCuda is already installed and paid for, keep it. Add the SSD, move the operating system, and repurpose the BarraCuda as the storage volume. That is a better machine than either drive alone and it does not waste the purchase.
There is a narrow exception worth naming so the advice is not absolute: a machine that boots once and then runs a single long-lived workload, a file server, a recorder, an appliance that nobody sits in front of, does not benefit much from a fast system volume, because the responsiveness you would gain is not being observed by anyone.
Even there, small SSDs are inexpensive enough that the reasoning is usually about not opening the case rather than about money. If the machine is already built and running, leaving it alone is a reasonable decision.
For anything with a person sitting at it, the answer stays no.
| Model | Capacity | Recording | Live price | |
|---|---|---|---|---|
| ST1000DM014 Seagate BarraCuda | 1TB | SMR | — | Not in stock |
A dash under live price means we do not currently track that exact model in stock. The recording badge comes from the manufacturer document linked on each model's page.
It will install and it will run. The question is not whether it works but whether you will be happy with it, and for a machine somebody sits in front of the answer is generally no. An operating system generates constant small random access, which is what mechanical drives handle worst.
It makes a bad idea slightly worse. A system volume does a lot of small random writing, which is the exact pattern shingled recording penalises. The older ST1000DM010 is conventionally recorded, but it is still a mechanical drive and still the wrong choice for booting.
500GB covers the system, applications and a working set comfortably for most people, with the mechanical drive holding everything else. Going smaller than about 250GB starts to be a false economy once updates and application caches accumulate.
It is usually the single most effective upgrade available to an older computer, more so than adding memory in most cases. The machine stops feeling slow in the general way that makes people replace computers, and the existing hard drive keeps doing what it was doing.