ST31000640SS - 1TB SAS 7200RPM Enterprise HDD | Seagate
부품 번호: ST31000640SS ✗ 단종| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $145.95 | $145.95 |
| 10 | $135 | $1,350.00 |
| 50 | $125 | $6,250.00 |
| 100 | $118 | $11,800.00 |
| 500 | $110 | $55,000.00 |
ST31000640SS 개요
A nearline SAS HDD is an enterprise-class hard drive optimized for bulk storage workloads where capacity, sustained throughput, and 24x7 availability matter more than ultra-low latency. SAS (Serial Attached SCSI) drives sit above consumer SATA drives in the storage hierarchy - SAS -> enterprise HDD -> nearline HDD -> desktop HDD - offering dual-porting, command queuing (TCQ), and stricter duty-cycle ratings. The ST31000640SS occupies the nearline tier: bulk capacity at spinning-disk economics with enterprise robustness for backup, archival, and tier-2 storage pools inside Dell PowerEdge servers and EqualLogic PS-series arrays.
Key features include 1 TB formatted capacity, 7200 RPM spindle, SAS 3 Gb/s interface, average seek times around 8.5 ms read, and on-drive IOEDC/IOECC data protection. The 3.5-inch form factor plugs directly into Dell Gen-13 PowerEdge hot-swap caddies and EqualLogic PS-series shelves, making it a direct-replacement candidate when refreshing aging server pools. Average sustained transfer rates exceed 100 MB/s, while rotational vibration tolerance and dual-port SAS keep performance stable in dense multi-drive chassis.
The drive architecture employs 4 platters with perpendicular recording, a dedicated servo system, and Seagate's PowerChoice idle power management. Native command queuing and tagged command queuing enable the host RAID controller to reorder I/O for higher throughput under mixed random/sequential workloads. The dual-port SAS interface delivers multipath I/O for redundant controller paths in EqualLogic SAN deployments.
Typical applications include Dell PowerEdge R-series and T-series server primary boot and bulk storage volumes, EqualLogic PS6210E / PS4100E iSCSI SAN capacity expansion, nearline backup targets in SMB and remote-office data centers, RAID-5 or RAID-6 array members for archival storage, and Tier-2 capacity pools behind flash-accelerated read caches. The 1 TB capacity point and 3.5-inch form factor remain broadly deployed in legacy Gen-12/Gen-13 Dell fleets that still accept spinning disks.
When designing with this drive, confirm the host backplane accepts 3.5-inch SAS drives at 3 Gb/s link rate and that the RAID controller firmware supports the drive's PI (SCSI Peripheral Interface) version. Mixed-capacity deployments inside a single EqualLogic shelf follow Dell's compatibility matrix - verify the existing shelf firmware revision before hot-adding older nearline drives to newer arrays.
This page synthesizes distributor pricing, cross-brand same-capacity alternatives, and practical deployment notes beyond the Seagate product brief, with a focus on the legacy Dell PowerEdge and EqualLogic ecosystem where the ST31000640SS remains in active service.
드롭인 대체품: ST31000640SS — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
ST1000NM0001
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ST1000NM0011
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ST31000524NS
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
HUS156060VLS600
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
WD1001FYYG
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MB1000JFCNC
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ST31000640SS 사양
| Product Type | Internal Hard Disk Drive (HDD) |
| Product Family | Seagate Barracuda ES.2 / Constellation ES |
| Storage Capacity | 1 TB |
| Spindle Speed | 7200 RPM |
| 인터페이스 | SAS 3 Gb/s (dual-port capable) |
| Form Factor | 3.5 inch |
| Cache Buffer | 16 MB or 64 MB (variant-dependent) |
| Number of Platters | 4 |
| Recording Technology | Perpendicular Magnetic Recording (PMR) |
| Average Seek Time | 8.5 ms (read) |
| Sustained Transfer Rate | Up to 105 MB/s |
| Hot-Swap Support | Yes (Dell hot-plug caddy) |
| Workload Rating | Nearline / 24x7 enterprise |
| 동작 온도 | 5C to 55C |
| Form Factor Compatibility | Dell PowerEdge Gen 12/13, EqualLogic PS-series |
ST31000640SS standard 핀 구성 가이드
ST31000640SS(standard 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.
다음에 대한 상세 핀아웃 데이터 없음: ST31000640SS.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
ST31000640SS 적합 용도: 6 애플리케이션s: Dell PowerEdge Server Boot and Bulk Storage, EqualLogic PS-Series iSCSI SAN Capacity Expansion, Nearline Backup and Tier-2 Archive, Rack-Scale Dense Storage Chassis, Legacy Dell Fleet Maintenance and Refurbishment, Small-Medium Business Database Log Volumes.
Dell PowerEdge Server Boot and Bulk Storage
The ST31000640SS is purpose-built for Dell PowerEdge Gen-12 and Gen-13 servers as a primary-capacity drive on PERC RAID controllers. Its SAS 3 Gb/s dual-port interface supports multipath I/O on PERC H700/H800 adapters, while the 7200 RPM spindle and 1 TB raw capacity deliver a strong balance of throughput and capacity for boot volumes and RAID 5/6 bulk pools. The drive's TLER-aware error recovery lets the PERC controller honor RAID timeout windows without spurious drive drops. With 4 platters of perpendicular recording it sustains ~105 MB/s sequential reads, sufficient for general file-server, virtualization-host, and database log workloads in small-to-mid PowerEdge deployments. Hot-swap carrier compatibility means failed units can be replaced without downtime.
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EqualLogic PS-Series iSCSI SAN Capacity Expansion
The ST31000640SS carries EqualLogic-specific firmware validation for the PS6210E, PS4100E, and PS6100E array families, and ships with a Dell Lifetime Warranty SKU for arrays purchased after 2012-01-01. Its 1 TB capacity and 7200 RPM spindle let SAN administrators expand PS-Series shelves one-to-one against retired original drives while preserving the RAID-tier layout. Dual-port SAS connectivity provides redundant paths to both EqualLogic controllers, sustaining throughput under a single-controller failure. The drive is widely deployed in tier-2 capacity pools behind EqualLogic's flash-caching tiers, where bulk capacity and 24x7 reliability outweigh latency. Active field stock remains plentiful through Harddrivesdirect and Disk Drive Finder for in-place expansion of legacy PS-Series volumes.
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Nearline Backup and Tier-2 Archive
The Seagate Barracuda ES.2 platform underlying the ST31000640SS targets nearline backup scenarios - large sequential writes, multi-hour data retention, infrequent re-reads. With a 7200 RPM spindle optimized for sequential workloads, ~105 MB/s sustained throughput, and 4-platter perpendicular recording, the ST31000640SS can ingest multi-terabyte backup sets during overnight windows at a reasonable power/heat budget. PowerChoice idle modes reduce wattage to ~5 W during archival idle periods. The drive's SAS TLER compliance prevents it from timing out inside a RAID 5/6 backup target where long sequential rebuilds stress error recovery. For SMB and remote-office data centers it remains a cost-effective bulk-archive drive, particularly where enterprise SATA-grade reliability is required without 15K-RPM duty.
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Rack-Scale Dense Storage Chassis
Inside dense rack-scale chassis the ST31000640SS delivers 1 TB per 3.5-inch slot at SAS 3 Gb/s, allowing 16-bay chassis to host 16 TB per shelf without provisioning. Rotational-vibration tolerance and TCQ/NCQ support keep aggregate throughput stable across full-population shelves, addressing the vibration-induced performance penalty that plagues consumer SATA drives in dense chassis. Dual-port SAS connectivity is essential for dual-controller chassis where either controller must serve any drive. The drive's 7200 RPM profile balances throughput, power, and heat for passive or fan-cooled rack chassis in SMB colocation deployments. EqualLogic PS-Series and generic JBOD chassis both benefit from these characteristics when scaling from a single 1U server to a rack of 4U shelves.
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Legacy Dell Fleet Maintenance and Refurbishment
Refurbishment and field-replacement of older Dell PowerEdge Gen-12 servers remains a primary use case for the ST31000640SS, since the drive's firmware ID is whitelisted in PERC H700/H800 controllers and EqualLogic PS-Series member firmware revisions. Withdrawn from Seagate production, the ST31000640SS is now sourced through the secondary distributor channel - Harddrivesdirect and Yobitech - for in-place replacement of failed drives inside aging Dell server farms. Because RAID controller firmware rejects unknown drives, replacing a failed unit with the same-generation ST31000640SS preserves the array's online state without requiring a firmware update. Maintenance depots continue to stock the drive specifically for fleet lifecycle extension, even though greenfield deployments should use Exos 7E2 or WD1001FYYG equivalents.
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Small-Medium Business Database Log Volumes
The ST31000640SS serves as a low-cost database log volume in SMB SQL Server, MySQL, and PostgreSQL deployments where the 1 TB capacity and ~105 MB/s sustained throughput match sequential-write-heavy redo-log workloads. Unlike consumer SATA drives, the SAS TLER behavior keeps the drive inside RAID controller timeout windows during transient read errors, avoiding spurious drive drops during midnight integrity checks. The drive's duty cycle and 5-year warranty terms (reseller-dependent) make it suitable for SMB line-of-business database servers running Monday-Friday 9-to-5 plus nightly batch windows. While SSD-backed log volumes are now standard in new design, mixed SSD-cache + SAS-HDD tier configurations retain the ST31000640SS in legacy SQL clusters where refresh budgets are constrained.
추천
추천 제품 요약
엔지니어링 참조 데이터: ST31000640SS — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ST1000NM0001 | ST1000NM0011 | WD1001FYYG | MB1000JFCNC |
|---|---|---|---|---|---|
| Brand | Seagate | Seagate | Seagate | Western Digital | Toshiba |
| Package | 3.5-inch SAS | 3.5-inch SAS | 3.5-inch SAS | 3.5-inch SAS | 3.5-inch SAS |
| Capacity | 1 TB | 1 TB | 1 TB | 1 TB | 1 TB |
| Spindle Speed | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Interface | SAS 3 Gb/s | SAS 6 Gb/s | SAS 6 Gb/s | SAS 6 Gb/s | SAS 6 Gb/s |
| Cache Buffer | 16 MB or 64 MB | 128 MB | 128 MB | 64 MB | 128 MB |
| Lifecycle | NRND (legacy) | Active (current generation) | Active (current generation) | Active | Active |
| Warranty | 5-year (reseller) / Lifetime (EqualLogic SKU) | 5-year (Seagate) | 5-year (Seagate) | 5-year (WD) | 5-year (Toshiba) |
| Dual-Port SAS | Yes | Yes | Yes | Yes | Yes |
주요 차별점
- Dell factory firmware validation across PowerEdge and EqualLogic (vs ST1000NM0001)
- 3 Gb/s SAS interface optimized for legacy backplanes (vs ST1000NM0011)
- EqualLogic-specific Lifetime Warranty SKU (vs WD1001FYYG)
설계 노트
Before hot-adding a ST31000640SS into an existing Dell PowerEdge or EqualLogic array, verify the existing PERC controller firmware and EqualLogic shelf firmware revision explicitly whitelist this drive's SCSI inquiry strings. Older firmware releases reject newer (or unrecognized) nearline drives mid-RAID-set, causing array rebuild failures - the NRND status means firmware whitelists may not be updated for newer revisions of the same Barracuda ES.2 platform.
The ST31000640SS draws approximately 8 W during read/write and 5 W at idle per Seagate Barracuda ES.2 family specifications. In a fully populated 16-bay dense chassis, aggregate HDD heat load reaches 80-130 W; verify the chassis airflow design supports front-to-back cooling across all bays. Inadequate airflow lets the lowest-bay drives run 10-15C hotter, accelerating failure rates.
Do NOT mix ST31000640SS units of different cache sizes (16 MB vs 64 MB) inside the same RAID set - while the same product family, mixed cache geometries have historically produced revalidation warnings in older PERC firmware, and EqualLogic may flag the mismatched set. Also avoid mixing the legacy 3 Gb/s ST31000640SS with 6 Gb/s ST1000NM0001 inside the same array, even though they share capacity and RPM; the link-rate mismatch forces the array to negotiate down to 3 Gb/s for all members.
When replacing failed ST31000640SS units in a hot-swap chassis, stagger insertions by 30-60 seconds to prevent inrush-current spikes that can trip backplane breakers in densely populated shelves. The 4-platter design has higher start-current than 1-platter 2.5-inch enterprise SSDs; large multi-drive rebuild scenarios need staged spin-up to stay within the chassis power supply's peak-current rating.
규정 준수 정보
Compliance information derived from Seagate Barracuda ES.2 family product page (legacy). Halogen-free status not separately stated in available data; assumed standard for enterprise HDD manufacturing but unverified.