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问

R4900FGG3,拆卸raid卡不要了，硬盘线路如何连接，需要增加 其他的硬件吗

6小时前提问
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zhiliao_HLmV5e
zhiliao_HLmV5e 零段
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问题描述：

R4900FGG3,拆卸raid卡不要了，硬盘线路如何连接，需要增加 其他的硬件吗

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1 个回答
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下江小春
下江小春 四段
粉丝：2人 关注：7人

方案一：更换为 HBA 卡（推荐且最规范）

这是最标准、最稳定的做法。HBA 卡会将硬盘直接、透明地传递给操作系统，不做任何 RAID 处理，实现您“不要 RAID”的需求。

1. 所需硬件：

  • 一块 SAS HBA 卡：例如 LSI 9207-8i、LSI 9211-8i 或 H3C 兼容的同类 HBA 卡。这些是经典的直通卡，在 IT 模式下工作。
  • 两根 SFF-8087 转 SFF-8087 的 Mini SAS 线缆。长度需要根据您机箱内的走线空间确定，通常 50-80cm 即可。请务必确认您原 RAID 卡连接背板使用的就是这种接口（绝大多数G3服务器都是）。

2. 操作步骤：

  • 步骤1：关机断电。完全关闭服务器，拔掉所有电源线。
  • 步骤2：拆卸原 RAID 卡。打开机箱盖，找到 PCIe 插槽上的 RAID 卡，拔掉它连接背板的两条 Mini SAS 线，然后卸下固定螺丝，拔出卡片。
  • 步骤3：安装 HBA 卡。将新的 HBA 卡插入相同的 PCIe 插槽（建议使用相同的插槽以保证兼容性和性能）。用螺丝固定好。
  • 步骤4：连接线缆。将那两根 Mini SAS 线的一端连接到新 HBA 卡的两个接口上，另一端按照原来的顺序连接回硬盘背板的对应接口。
  • 步骤5：开机并配置。启动服务器，进入 BIOS 或 HBA 卡自身的配置界面（通常按 Ctrl+C 或 Ctrl+H 等提示进入）。确保 HBA 卡的模式是 “IT Mode” 或 “Initiator Mode”（直通模式）。在此模式下，操作系统（如 Windows、Linux）将能直接看到每一块独立的物理硬盘。

方案二：将现有 RAID 卡刷写为 IT 模式（技术性较强，有风险）

如果您的原 RAID 卡是 LSI 芯片的（例如 H3C 常用的 3008、3108 芯片卡），理论上可以通过刷写固件将其变为直通卡。但这需要较高的技术能力，操作不当会导致卡变砖。

强烈不建议新手操作。如果您坚持尝试，必须先：

  1. 备份原固件。
  2. 在论坛查找与您卡片型号和芯片完全一致的刷写教程。
  3. 准备好救砖工具（如编程器）。

重要警告与注意事项

  1. 数据安全：在进行任何硬件操作之前，请务必备份所有重要数据！更换存储控制器可能导致操作系统无法启动（因为驱动变了）。
  2. 操作系统影响：
    • 如果原先硬盘组了 RAID（如 RAID1， RAID5），并安装了操作系统，拆掉原 RAID 卡后系统将无法启动，因为数据是以 RAID 形式组织的。
    • 您的目标是让每块硬盘单独使用，这意味着您很可能需要重新安装操作系统，并在安装时选择将系统装在某一块独立的物理硬盘上。
  3. 兼容性：购买 HBA 卡时，优先选择 H3C 兼容性列表内的型号，或广泛使用的 LSI 芯片卡。确保其支持您硬盘的接口（SATA/SAS）。
  4. 驱动：安装好 HBA 卡和新系统后，可能需要安装对应的驱动程序。
  5. 散热：HBA 卡通常有散热片，请确保机箱内风道畅通。

总结与建议

对于您 H3C R4900 G3 服务器：

  1. 最佳路径：购买一块 LSI 9207-8i（或同级别）HBA 卡和两根 SFF-8087 线缆，替换原有的 RAID 卡。
  2. 心理准备：规划好数据备份和操作系统重装。
  3. 操作顺序：关机断电 -> 换卡接线 -> 开机进HBA配置界面确认IT模式 -> 安装操作系统。

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