خادم شينكوان | مورد أجهزة خادم المؤسسة
买 RAID 卡前先避开三个坑
坑一：”RAID 卡只管硬盘，管不了 NVMe。” 传统 RAID 卡只能接管 SAS/SATA；而现代服务器的引导盘、热数据盘全是 NVMe。Dell PERC H965i 是三模（Tri-Mode）控制器——同一块卡同时接管 SAS、SATA 和 NVMe 直连设备，一个控制器管住整台服务器的存储栈，不再需要为 NVMe 另买一张 HBA。
坑二：”缓存越大越好，别管掉电保护。” 没有掉电保护的缓存是数据炸弹：突然断电时缓存里的数据全部丢失。H965i 的 8GB DDR4-3200 缓存配套电池备份单元（BBU），断电时把缓存内容刷入闪存——缓存越大越需要这个保护，这也是它带 BBU 版本贵得有道理的原因。
坑三：”端口越多越专业。” 端口数要匹配盘位拓扑：16 个内部端口刚好覆盖 16-24 盘位机箱的 SAS/NVMe 直连，再多就是浪费。按服务器盘位选卡，不按广告数字选。
Core Specifications
| يصف | تخصيص |
|---|---|
| نموذج | Dell PERC 12 series, H965i Front Internal |
| Mode | Tri-Mode: ساس / SATA / NVME (direct connect) in one controller |
| Internal ports | 16 الموانئ (أمام) |
| واجهة | SAS4, 22.5/24 Gbps per lane-class |
| Cache | 8 GB DDR4-3200, with battery backup unit (BBU) خيار |
| مستويات RAID | 0, 1, 5, 6, 10, 50, 60; غير خادع / HBA mode supported |
| Features | ترحيل مستوى RAID, hot spare, fast rebuild, self-encrypting drive support |
| Host interface | PCIe Gen4 |
| Compatibility | PowerEdge R760 / R670 / R960 / R7715 and current rack family |
Why Tri-Mode Changes the Storage Stack
Before tri-mode, a database node typically needed a RAID controller for SAS drives plus an NVMe HBA or direct-attach slots for flash – two cards, two drivers, two failure domains. With the H965i, one card presents SAS/SATA arrays and NVMe devices to the OS, and the PERC firmware handles RAID on the SAS/SATA side while NVMe passes through at native latency. That is the exact architecture Dell validates in the PowerEdge R960 (Front PERC H965i) و R670.
RAID Levels and Operational Features
- غارة 0/1/5/6/10/50/60 covers performance and parity layouts; غير خادع (HBA) mode passes disks through for software-defined storage.
- ترحيل مستوى RAID lets you expand from RAID 1 to RAID 5/10 without rebuilding from scratch.
- Hot spare and fast rebuild cut rebuild windows on large arrays.
- Self-encrypting drive support keeps at-rest encryption on the drive layer.
- Battery backup flushes cached writes to flash on power loss – data-safe caching.
Which Card for Which Chassis
| الخادم | Controller fit |
|---|---|
| R670 / R960 / R760 | Front PERC H965i (16-ميناء, tri-mode) |
| R7715 | PERC H365i / H965i / H975i (per config) |
| External storage | دقيقة H965E (external, with HBA355e/HBA465e options) |
Pair the H965i with the BOSS-N1 boot module to keep OS boot off the data controller entirely.
Buying FAQ
- Does it handle NVMe? Yes – tri-mode covers SAS, SATA and NVMe direct-attach.
- Cache protection? 8GB DDR4-3200 with BBU battery backup option.
- مستويات RAID? 0, 1, 5, 6, 10, 50, 60 plus non-RAID mode.
- الموانئ? 16 internal ports – sized for 16-24 bay chassis.
- Fits my server? Standard for current PowerEdge rack family (R760/R670/R960/R7715).
Upgrading or rebuilding storage? As an authorized Dell partner we supply PERC controllers, BOSS-N1 boot modules and compatibility-checked builds with factory-direct pricing, 3-year warranty and global shipping – contact us for a RAID configuration review.
التفاصيل: on 25+ bay or mixed SAS/NVMe builds, confirm port topology with our team – the 16-port H965i covers most rack layouts, and H965e handles external enclosures.
