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Toshiba Semiconductor and Storage MG08SDA400N
- Part No.:
- MG08SDA400N
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- Datasheet:
-
MG08SDA400N.pdf
- Description:
- MG08 4TB
- Quantity:
- Payment:
- Shipping:
Inventory:3,144
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Product details
Overview
MG08SDA400N from Toshiba Electronic Devices & Storage Corporation is an enterprise-capacity 4 TB SAS-3 hard disk drive with 7200 rpm spindle speed, 256 MiB buffer, 512n native sector format, and 550 TB/year workload rating - deployed in tier-2 business-critical storage servers requiring legacy 512-byte sector compatibility.
For engineers reviewing the MG08SDA400N datasheet, MG08SDA400N pinout, MG08SDA400N application, or MG08SDA400N equivalent, key selection criteria include SAS-3 dual-port interface support, 512n logical block addressing, Sanitize Instant Erase (SIE) option availability, power disable control via Pin P3, and compliance with 24/7 data center duty cycles.
Technical Context
The MG08SDA400N implements a dual-port SAS-3 interface with primary and secondary ports supporting 12.0 Gbit/s, 6.0 Gbit/s, 3.0 Gbit/s, and 1.5 Gbit/s negotiated speeds. It uses 512n sector format - no host-side emulation - enabling direct compatibility with legacy OS boot loaders and hypervisors requiring native 512-byte sectors.
Its mechanical design features a 3.5-inch form factor (101.85 mm × 26.1 mm × 147.0 mm), 7200 rpm rotation speed, and power management including staggered spin-up detection (via Spin pin), READY LED output, and POWER DISABLE control (Pin P3). It supports full SAS command set including SANITIZE (10), PERSISTENT RESERVE, and REPORT IDENTIFYING INFORMATION.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface | SAS-3 dual-port (12 Gbit/s max), compatible with SAS-2 and SAS-1 infrastructure |
| Formatted Capacity | 4 TB (1012 bytes); actual OS-reported capacity ~3.63 TiB due to binary prefix convention |
| Rotation Speed | 7200 rpm - enables higher sustained throughput and lower latency vs. nearline 5400/5900 rpm drives |
| Buffer Size | 256 MiB - improves sequential write caching and reduces host I/O wait during burst transfers |
| Max Sustained Transfer | 222 MiB/s (512n mode) - measured at typical sequential read; reflects physical media performance limit |
| Power Consumption | 8.16 W (Write/Read 4KB Q1, typ.), 4.50 W (Active Idle, typ.) - meets enterprise thermal envelope requirements |
| Workload Rating | 550 TB/year - validated for continuous 24×7 operation in mid-line storage arrays and hyper-converged nodes |
Pinout & Package
MG08SDA400N uses a standard 29-pin SAS edge connector (SFF-8482 compliant) in a 3.5-inch, 26.1 mm height mechanical package (101.85 mm × 26.1 mm × 147.0 mm; max weight 693 g).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| S1–S7, S8–S14 | GND / RP± / TP± / RS± / TS± | Dedicated ground returns per signal pair; differential Rx/Tx lanes for primary (S1–S7) and secondary (S8–S14) SAS ports |
| P3 | POWER DISABLE | Active-low input controlling power-on sequence; tied to GND or left open when feature disabled |
| P7–P9, P13–P15 | +5 V-Charge / +5 V / +12 V-Charge / +12 V | Pre-charge and main power rails; supports staggered spin-up to limit inrush current across backplane |
| P11 | READY LED | Open-drain output indicating drive readiness after spin-up and initialization completion |
Key Features
| Feature | Design Value |
|---|---|
| 512n Native Sector Format | Direct 512-byte logical block addressing - eliminates read-modify-write overhead and ensures BIOS/UEFI boot compatibility |
| Dual-Port SAS-3 Interface | Redundant path connectivity with automatic failover; supports multipath I/O in enterprise storage controllers |
| Sanitize Instant Erase (SIE) Option | Hardware-accelerated cryptographic erase completing in <5 seconds - meets NIST SP 800-88 Rev. 1 Purge standards |
| 24/7 Rated Reliability | 2,000,000 hours MTTF / 0.44% AFR - validated under 550 TB/year workload and ≤40°C HDA surface temperature |
| Power Disable Control | Pin P3 enables host-synchronized power sequencing - critical for hot-swap backplanes and power budgeting in dense chassis |
Applications
| Enterprise Storage Arrays | Hypervisor Hosts (VMware/Hyper-V) |
|---|---|
|
Use Scenario: Tier-2 capacity layer in Dell EMC PowerStore, NetApp FAS, or HPE Nimble systems handling mixed random/sequential I/O. IC Role / Device Role / Timing Role: Primary non-volatile storage device providing block-level access via SAS initiator; timing-critical for cache coherency handshakes. Use Value: 512n sector alignment avoids misaligned I/O penalties in legacy VMFS and ReFS volumes; dual-port SAS enables controller redundancy without path failover delay. |
Use Scenario: Boot and data storage for VMware ESXi hosts running vSAN or Hyper-V clusters with legacy guest OS images. IC Role / Device Role / Timing Role: Direct-attached SAS storage presenting as SCSI-3 compliant LUN; timing-sensitive for boot ROM handshake and VSS snapshot coordination. Use Value: Native 512n support ensures unmodified Windows Server 2008–2016 install media boots without sector translation; 7200 rpm delivers sub-10 ms average latency for VM disk I/O. |
| Cloud Infrastructure Nodes | Backup & Archive Appliances |
|
Use Scenario: Capacity-optimized compute/storage nodes in OpenStack Ceph or AWS Outposts deployments requiring high TB/$ density. IC Role / Device Role / Timing Role: OSD (Object Storage Daemon) backing store; timing-critical for PG (Placement Group) peering and recovery scheduling. Use Value: 550 TB/year workload rating matches Ceph's annual rebuild bandwidth targets; SAS-3 link aggregation sustains >1.8 Gbit/s per OSD during scrubbing. |
Use Scenario: Disk-based backup target in Veeam Backup & Replication or Commvault appliances performing daily full backups of 10+ TB datasets. IC Role / Device Role / Timing Role: Sequential-write-optimized storage medium; timing-critical for tape-out migration windows and dedupe chunk alignment. Use Value: 222 MiB/s sustained transfer rate enables sub-5-hour backup window for 4 TB datasets; SIE option allows cryptographically secure media decommissioning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar enterprise HDD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Seagate Exos 7E8 (ST4000NM000A) | 4 TB, SATA-6Gb/s, 512e format, 256 MiB buffer, 7200 rpm - lacks dual-port SAS and 512n support | Requires host-side 512e emulation; unsuitable for legacy BIOS boot or SCSI passthrough workloads | Select only if SATA infrastructure is fixed and 512n is not required; verify OS/driver support for 512e alignment |
| Western Digital Ultrastar DC HC550 (WUH721840ALE6L4) | 4 TB, SAS-3, 512n format, 512 MiB buffer, 7200 rpm - includes TCG Opal SED but no SIE option | Higher buffer improves large-block sequential throughput; lacks instant-erase capability for rapid media retirement | Prefer when encryption-at-rest is mandatory and SIE is not needed; confirm firmware version supports required SAS features |
Compared with Seagate Exos 7E8 and WD Ultrastar DC HC550, MG08SDA400N uniquely combines 512n native addressing, SAS-3 dual-port redundancy, and optional Sanitize Instant Erase - making it the only choice for legacy-booting, high-availability storage nodes requiring certified rapid data sanitization.
Availability
MG08SDA400N is available at Aetrix Electronics and suitable for enterprise storage arrays, hypervisor hosts, cloud infrastructure nodes, and backup appliances requiring stable component supply and long-term lifecycle continuity.
Supply support for MG08SDA400N includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Toshiba Electronic Devices & Storage Corporation designs and manufactures high-reliability storage solutions, with global R&D centers in Japan and the Philippines, and ISO 9001-certified manufacturing facilities.
The MG08-D Series - including MG08SDA400N - was engineered specifically for mid-line enterprise storage systems demanding 24/7 operation, high TB-per-spindle density, and compatibility with legacy 512n software stacks.
FAQ
What interface standard does MG08SDA400N implement?
MG08SDA400N implements the SAS-3 (12 Gbit/s) interface with dual-port capability, fully compliant with SFF-8482 and ANSI INCITS 517-2014. It supports backward compatibility with SAS-2 (6 Gbit/s) and SAS-1 (3 Gbit/s) host controllers, and uses differential signaling across dedicated Rx/Tx pairs for both primary and secondary ports. The MG08SDA400N pinout includes POWER DISABLE (Pin P3) and READY LED (Pin P11) for system-level power management.
Does MG08SDA400N support 512n or 512e sector format?
MG08SDA400N supports 512n (512-byte native) sector format exclusively - no emulation layer. This ensures direct compatibility with legacy BIOS, UEFI firmware, and operating systems that require true 512-byte logical block addressing without read-modify-write overhead. Unlike 512e models, MG08SDA400N presents exactly 512 bytes per logical sector to the host, verified in the official MG08-D Series Product Manual Section 4 (Model Number table) and Section 2 (Logical Data Block Length).
What is the rated workload and reliability of MG08SDA400N?
MG08SDA400N is rated for 550 TB/year workload and 24×7 operation, with a 2,000,000-hour MTTF and 0.44% annualized failure rate (AFR) under defined conditions (≤40°C HDA surface temperature, 550 TB/year load). These metrics are validated per JEDEC publication 219A and published in the MG08-D Series Product Manual Section 3 (Reliability). The MG08SDA400N also guarantees ≤10−16 non-recoverable error rate per bits read.
Is Sanitize Instant Erase (SIE) available on MG08SDA400N?
Yes - MG08SDA400N offers an optional SIE-enabled variant (MG08SDA400NY), which performs cryptographically secure erasure in under 5 seconds using AES-256 and meets NIST SP 800-88 Rev. 1 Purge requirements. The base MG08SDA400N does not include SIE; only the "Y" suffix denotes factory-provisioned SIE capability. This is confirmed in the Model Number table (Page 4) and KEY FEATURES section (Page 1) of the MG08-D Series Product Manual.
What mechanical form factor and dimensions does MG08SDA400N use?
MG08SDA400N uses the industry-standard 3.5-inch form factor with maximum dimensions of 101.85 mm (width) × 26.1 mm (height) × 147.0 mm (length) and a maximum weight of 693 g. This matches the mechanical specification in Section 7 of the MG08-D Series Product Manual and ensures compatibility with all standard 3.5-inch hot-swap sleds, carriers, and backplanes used in enterprise servers and JBOD enclosures.
MG08SDA400N Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- MG08-D
- Packaging:
- Bulk
- Product Status:
- Active
- Memory Size:
- 4TB
- Memory Type:
- Magnetic Disk (HDD)
- Form Factor:
- 3.5"
- Speed - Read:
- -
- Speed - Write:
- -
- Voltage - Supply:
- 5V, 12V
- Type:
- SAS
- Current - Max:
- -
- Operating Temperature:
- 5°C ~ 55°C
- Weight:
- -
- Size / Dimension:
- 147.00mm x 101.85mm x 26.10mm
MG08SDA400N FAQ
1.How can I place an order for MG08SDA400N through Aetrix?
Please submit a Request for Quotation (RFQ) for MG08SDA400N on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MG08SDA400N reliable?
The price and inventory of MG08SDA400N are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MG08SDA400N is usually 5 days.
3.What payment methods are accepted for MG08SDA400N?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MG08SDA400N transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MG08SDA400N?
MG08SDA400N orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MG08SDA400N order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MG08SDA400N?
For technical support, including MG08SDA400N datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MG08SDA400N requirements.
6.How does Aetrix verify that MG08SDA400N is sourced from the original manufacturer or authorized distributors?
All MG08SDA400N products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MG08SDA400N meets industry standards.
7.What is the process for return or replacement of MG08SDA400N?
All MG08SDA400N units undergo pre-shipment inspection (PSI). If there is an issue with MG08SDA400N, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MG08SDA400N part is unused and in its original packaging.
Return procedure for MG08SDA400N:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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