Editorial, 22 Aug 2026. Specs from maker pages and named street reports. We have not burned these units in. Affiliate tags are not live. Confirm the diskless SKU before you click — Amazon is full of drive bundles.
NAS HDDs 2026: Red Plus, IronWolf, N300 — skip SMR and 5400 RPM for VMs
One rule: CMR in any RAID or ZFS. Second rule: 5400 / 5640 RPM NAS drives choke VM iSCSI. Put VMs on SSD.
No Labthrift power-on hours, SMART logs, or fio numbers exist yet. The table is maker RPM / workload plus named third-party reviews. Street prices on 8 TB NAS disks disagree across shops this month. We are not freezing a “$160 IronWolf” or a “$32/TB Red Plus.” Check the live card.
| SKU | What it is | Buy for |
|---|---|---|
Seagate IronWolf 8 TB ST8000VN004 | CMR, 7200 RPM, 256 MB, 180 TB/yr, 3-year. Sustained up to 210 MB/s on the datasheet. | The 8 TB IronWolf that is actually 7200. Amazon B07XQ18JJW. |
WD Red Plus 8 TB WD80EFPX | CMR, 5640 RPM, 256 MB, 180 TB/yr, 3-year, 1–8 bay. WD’s Plus line exists so buyers stop getting SMR “Red.” | SHR / RAID 1 backups and media. Not a VM LUN. Amazon B0CMQ6SK7W. Newegg 1Z4-0002-01NP7 (a snapshot showed $354.99; CamelCamelCamel list $224.99 around 21 Aug 2026). Confirm live. |
Toshiba N300 8 TB HDWG480XZSTA | CMR, 7200 RPM, 256 MB, 180 TB/yr. | The third current retail 8 TB CMR. Newegg N82E16822149793. |
CMR vs SMR — read the suffix
Buy: WD Red Plus (CMR), WD Red Pro (CMR, 7200), IronWolf / IronWolf Pro (CMR), Toshiba N300 / N300 Pro (CMR). Avoid in RAID / ZFS / iSCSI: plain WD Red EFAX (DM-SMR, 2–6 TB, 2019–2022 controversy), WD Blue 3.5" EZAZ, Seagate BarraCuda 3.5" 4 TB / 8 TB (SMR), Toshiba P300 4 TB / 6 TB (SMR). Host-managed Exos SMR (32 / 36 / 44 TB) is not a home-NAS drive. Used or old-stock EFAX is how people still get SMR in 2026. Confirm the model suffix before checkout.
The 5400 RPM iSCSI trap
These drives are fine for backups, Time Machine, media, Hyper Backup. They are not fine as the only datastore for Proxmox / VMware / Hyper-V over iSCSI. Rotational latency and 8–12 ms seeks dominate 4K / 8K random I/O. Tom’s Hardware (IronWolf 12 TB RAID 5): 7200 RPM IronWolf pulled ahead of 5400 RPM WD Red on SMB and iSCSI under mixed / random load; WD Red “isn’t” the iSCSI pick. HomeLabPicks (2026): IronWolf 8 TB ~210 MB/s seq vs Red Plus 8 TB ~185 / 175–180 MB/s; random I/O similar and “neither will feel fast vs a SATA SSD cache.”
IronWolf capacity trap: 1–6 TB IronWolf SKUs are 5400 RPM (example ST4000VN006 4 TB). 8 TB ST8000VN004 is 7200. Do not assume “IronWolf” means 7200. There is also an 8 TB ST8000VN002 on a current Seagate sheet at 5400 RPM — read the exact model. WD Red Plus 8 TB WD80EFPX is CMR but 5640 RPM. Safe for SHR / RAID 1. Wrong for a VM LUN unless you add NVMe / SATA SSD cache or a dedicated SSD pool.
Synology DS224+ SAN Manager: max 2 iSCSI targets, 4 LUNs. Product limit, not a drive limit. Chassis notes: DS224+, DS423+, first NAS lane.
Skip
Skip bare “WD Red” without Plus or Pro. Skip BarraCuda 3.5" 4 / 8 TB in an array. Skip Blue EZAZ. Skip using any 5400 / 5640 RPM pair as the only Proxmox datastore. Skip inventing a “best price per TB” from a single 2026 screenshot — the snapshots disagree.
Sources
Seagate IronWolf datasheets (ST8000VN004 7200; ST4000VN006 / current 1–6 TB 5400; ST8000VN002 5400 on a current sheet). WD Red Plus product brief (WD80EFPX CMR, 5640 RPM, 180 TB/yr). ComputingForGeeks CMR 2026 list. Need to Know IT SMR 2026. HomeLabPicks IronWolf vs Red Plus. Tom’s Hardware IronWolf 12 TB RAID 5 / iSCSI. Newegg / Amazon cards above. We have not burned these drives in.