Developed entirely in-house, BuyVM's Block Storage Slabs pair best-in-class performance with market-leading pricing. Multiple cache layers and large NVMe buffers, all served over a 40 Gbit+ InfiniBand RDMA fabric, for near locally-attached speed at $5 per terabyte.
Slabs are sold in 256 GB increments at $1.25/mo — that's a flat $5 per usable terabyte, with no per-IOPS surcharges and no surprise egress bills. Pick a size, attach it to your slice, and grow whenever you need to.
Sold in 256 GB increments at $1.25/mo. A Slab needs a Dedicated KVM Slice in the same facility to attach to.
Create a Slab in the Stallion control panel, attach it to a KVM Slice in the same facility, and it appears as a block device — no downtime, no reboots. Detach, reattach and migrate it between slices the same way, entirely live.
Block Storage Slabs are first-class citizens in our Stallion control panel. Provision capacity, attach it to the slice that needs it, and move it elsewhere later — all without taking a server offline.
There are plenty of ways to do block storage: NFS, GlusterFS, iSCSI, Ceph, even six-figure EMC appliances. Slabs outrun all of them while costing a fraction. Here's the price of a single usable terabyte against the big names.
| Vendor | Notes | Cost per TB |
|---|---|---|
★ BuyVM 40 Gbit+ RDMA fabric, near-local performance | Fantastic performance and cost in one neat little package. You'll hate yourself for not finding us sooner. | $5/mo |
OVH | Lackluster latency, throughput and availability. Max 200 IOPS on "Classic", 3,000 IOPS on "Performance" volumes. | $90/mo |
Vultr | Requires a full reboot before a volume will attach, and no clean way to identify a volume. | $100/mo |
Amazon EBS extra cost per IOPS performed | A history of stability issues forcing large-scale read-only volumes. Displayed price includes only 100 IOPS. | $131.50/mo |
Competitor figures are per usable terabyte and indicative, 2026. The AWS tax is alive and well.
This isn't a bolted-on NFS share or someone else's Ceph cluster. Slabs were built from the ground up to feel like local disk while staying decoupled from your server.
Every Slab talks to your slice over a 40 Gbit+ InfiniBand RDMA Storage Fabric, delivering near locally-attached storage performance instead of network-disk lag.
Multiple cache layers, including large NVMe read and write buffers, absorb your hottest I/O so reads and writes stay fast under real-world load.
Move a Slab between KVM Slices in the same facility from Stallion. Migrations happen entirely "hot" — no powering off and no reboots to reattach.
Pair a Slab with any Dedicated KVM Slice in the same facility, and stack up to 8 Slabs on one server for as much as 80 TB of attached capacity.
Get a KVM Slice →A Slab shows up as a plain block device, so LUKS or your filesystem's own encryption just works — your data stays readable only with your passphrase.
At $5 per usable terabyte with no per-IOPS tax, Slabs cost roughly 95% less than OVH, Vultr or Amazon EBS — and still come out ahead on performance.
When a slice sells out, discover plans on our sister company Cloudzy: instant deployment across 13 global regions, AMD EPYC + NVMe, no egress fees, and a 14-day money-back guarantee.
Pick a size, attach it to a KVM Slice in the same facility, and put $5-per-terabyte storage to work — over a 40 Gbit RDMA fabric, with no reboots and no IOPS tax.