DatacenterDisk
Toshiba

Toshiba MG09 18TB

MG09SCA18TE
MG SeriesCMR18TBSAS-12G3.5"
$38.89/TB
$699.99
newIn Stock
Price updated
Price accurate as of Aug 14, 2026, 03:31 PM
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Quick Verdict

The Toshiba MG09 18TB is a 18TB SAS-12G enterprise drive at $38.89/TB - CMR recording makes it safe for all RAID levels and NAS deployments. New unit with full 5-year warranty.

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Specifications

Capacity18TB
Form Factor3.5"
InterfaceSAS-12G
Recording TechCMR
RPM7200
Cache—
Sector Size—
Workload Rating—
Warranty5 years
ASINB09Q956NQD
Market context

Against every other drive we have an in-stock price for today, this one is cheaper per tb than 48% of them (127 of 263). The cheapest we can currently buy is $14.00/TB; the middle of the market is $37.55/TB.

Where the wider market has moved

These are third-party figures about the retail market as a whole, quoted and dated. They are not our own measurements and they do not describe this specific drive.

Compare against every 18TB drive we track →Cheapest per terabyte, all categories →Category price trends →
How it compares - 18TB SAS-12G
#1MDD 18TB SAS 12G 7200RPM Enterprise
$17.78/TB
#2MDD 18TB SAS 12G 7200RPM Enterprise
$18.89/TB
#3Toshiba MG09 18TBTHIS DRIVE
$38.89/TB

Compare to similar 18TB SAS-12G drives

MDD
18TB SAS 12G 7200RPM Enterprise
$17.78/TB
$319.99
new
MDD
18TB SAS 12G 7200RPM Enterprise
$18.89/TB
$339.99
new

Frequently Asked Questions

Yes. The MG09 18TB uses CMR recording which is fully compatible with all RAID levels.

5-year manufacturer warranty.

Compatible with any server or workstation equipped with a SAS HBA or SAS backplane. Tested with Dell PowerEdge, HPE ProLiant, Supermicro and IBM System x platforms.

Use Case Scenarios

🏠
Home & SMB NAS
Building a high-capacity NAS for media, backups and file sharing.
✓ Excellent fit
CMR recording is RAID-safe and fully compatible with Synology, QNAP, TrueNAS and UnRAID. New drives come with full warranty.
💾
Backup Server / Veeam Target
Dedicated backup storage for Veeam, Commvault, or NetBackup.
✓ Excellent fit
18TB SAS drives are ideal for backup targets. Dual-port SAS suits dual-path backup infrastructure.
☁️
Object Storage / Cold Data Tier
High-density storage for MinIO, Ceph or Hadoop at scale.
✓ Excellent fit
At 18TB per drive, a 60-bay JBOD delivers 1080TB raw — enough for petabyte-scale object storage.

Maintenance & Troubleshooting

Maintenance Checklist

On installCheck SMART baseline on arrival
Run smartctl -a /dev/sdX and record: Reallocated_Sector_Ct, Power_On_Hours, Spin_Retry_Count. Establishes baseline for future comparison.
MonthlyRun SMART short self-test
smartctl -t short /dev/sdX — takes 1-2 minutes, catches most developing issues. Schedule during off-peak.
QuarterlyRun SMART long self-test
smartctl -t long /dev/sdX — full surface scan, takes 9 hours for 18TB. Any test failure is grounds for immediate replacement.
QuarterlyCheck RAID array health
Verify no degraded drives. A degraded array with no hot spare is one failure from data loss. Check mdstat or controller UI.
AnnuallyVerify drive firmware version
Check Toshiba support site for firmware updates. Some versions have known bugs affecting integrity.
Every 3-5 yearsPlan proactive replacement
Enterprise HDDs have higher failure rates after year 4-5. At 18TB per drive, budget for replacements before failures occur.

Troubleshooting Guide

Cause: HBA not initialized, SAS expander issue, cable fault, or incompatible controller.
Fix: Verify HBA firmware. Check SAS topology with sas2ircu or StorCLI. Test with known-good cable. Confirm drive is SAS not SATA.