其输出smartctl --scan如下。
/dev/sda -d scsi # /dev/sda, SCSI device
/dev/sdb -d scsi # /dev/sdb, SCSI device
/dev/bus/2 -d megaraid,0 # /dev/bus/2 [megaraid_disk_00], SCSI device
/dev/bus/2 -d megaraid,1 # /dev/bus/2 [megaraid_disk_01], SCSI device
/dev/bus/2 -d megaraid,2 # /dev/bus/2 [megaraid_disk_02], SCSI device
/dev/bus/2 -d megaraid,3 # /dev/bus/2 [megaraid_disk_03], SCSI device
/dev/bus/2 -d megaraid,4 # /dev/bus/2 [megaraid_disk_04], SCSI device
这是与五张磁盘。我不知道我是否可以从操作系统检查涉及的 RAID 配置，我想我不能，无论如何，目前我无法处理 BIOS。我假设前两个磁盘处于 RAID 1 配置（它们被视为 /dev/sda），其他三个磁盘处于 RAID 5 配置（它们被视为 /dev/sdb）。
问题是我通常会从类似的命令中获得不同的输出，具体取决于它们是将磁盘引用到第一个 RAID 配置还是第二个 RAID 配置。
例如使用该命令
smartctl --smart=on --offlineauto=on --saveauto=on /dev/bus/2 -d megaraid,0我得到以下输出。
smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-155-generic] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF ENABLE/DISABLE COMMANDS SECTION ===
SMART Enabled.
SMART Attribute Autosave Enabled.
SMART Automatic Offline Testing Enabled every four hours.
相反，使用该命令smartctl --smart=on --offlineauto=on --saveauto=on /dev/bus/2 -d megaraid,2我得到了以下输出。
smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-155-generic] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF ENABLE/DISABLE COMMANDS SECTION ===
Informational Exceptions (SMART) enabled
Temperature warning enabled
Autosave enabled (GLTSD bit cleared).
实际上我不明白上面提到的“自动离线测试”的频率。
当我尝试查看短扫描或长扫描后的结果时，也遇到了类似的问题。
和smartctl -l error /dev/bus/2 -d megaraid,0...
smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-155-generic] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Error Log Version: 1
No Errors Logged
用 来smartctl -l error /dev/bus/2 -d megaraid,2代替...
smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-155-generic] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
Error counter log:
Errors Corrected by Total Correction Gigabytes Total
ECC rereads/ errors algorithm processed uncorrected
fast | delayed rewrites corrected invocations [10^9 bytes] errors
read: 3595257651 0 0 3595257651 0 1843.590 0
write: 0 0 0 0 0 3076.669 0
verify: 3551761787 0 0 3551761787 0 15017.264 0
Non-medium error count: 372
而在这里我真的感觉有点迷失……
同样地，对于smartctl -l selftest /dev/bus/2 -d megaraid,0...
smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-155-generic] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Short offline Completed without error 00% 59961 -
# 2 Short offline Completed without error 00% 59937 -
# 3 Short offline Completed without error 00% 59913 -
# 4 Extended offline Completed without error 00% 59897 -
# 5 Extended offline Aborted by host 70% 59895 -
# 6 Short offline Completed without error 00% 59889 -
# 7 Short offline Completed without error 00% 59837 -
# 8 Short offline Completed without error 00% 59339 -
# 9 Short offline Completed without error 00% 59336 -
#10 Short offline Completed without error 00% 37147 -
#11 Short offline Completed without error 00% 37147 -
#12 Short offline Completed without error 00% 37147 -
#13 Short offline Completed without error 00% 37146 -
#14 Short offline Completed without error 00% 37146 -
#15 Short offline Completed without error 00% 37146 -
与smartctl -l selftest /dev/bus/2 -d megaraid,2...
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART Self-test log
Num Test Status segment LifeTime LBA_first_err [SK ASC ASQ]
Description number (hours)
# 1 Background short Completed - 60525 - [- - -]
# 2 Background short Completed - 60501 - [- - -]
# 3 Background long Completed - 60482 - [- - -]
# 4 Background short Completed - 60477 - [- - -]
# 5 Background short Completed - 60468 - [- - -]
# 6 Background short Aborted (by user command) - 60468 - [- - -]
# 7 Background long Aborted (by user command) - 60458 - [- - -]
# 8 Background long Aborted (by user command) - 60458 - [- - -]
# 9 Background short Completed - 60453 - [- - -]
#10 Background short Completed - 59897 - [- - -]
#11 Background short Completed - 37513 - [- - -]
#12 Background short Completed - 37513 - [- - -]
#13 Background short Completed - 37513 - [- - -]
#14 Background short Completed - 37513 - [- - -]
#15 Background short Completed - 37513 - [- - -]
#16 Background short Completed - 37513 - [- - -]
Long (extended) Self-test duration: 65535 seconds [1092.2 minutes]
实际上在第二种情况下，我无法判断完成的测试结果是否正常...
此外，我还发现了几个我觉得不该负责的“简短测试”（我不记得我启动了这么多smartctl -t short）。在 smartmontools 包附带的 smartd 的默认配置中，我发现了以下行。
DEVICESCAN -d removable -n standby -m root -M exec /usr/share/smartmontools/smartd-runner
这条线路怎么能负责我找到的所有简短测试呢？我没有看到那里有扫描请求。我错了吗？
我被告知，无论如何都会定期进行基本测试，因为它们是在硬件中编程的，但它们不包括任何坏块检查。正如您在上面看到的，我在获取假定的 RAID 5 配置中的磁盘的这些测试频率时遇到了麻烦。
很抱歉留言这么长，不幸的是，与我在互联网上找到的文档中的典型示例相比，我的情况似乎更加复杂……
您能否帮助我理解如何解读我所掌握的与我的情况相关的信息？
提前致谢！
安德里亚
- - 更新 - - 正如下面的评论所建议的，这不是 RAID 配置的问题，而是不同磁盘的问题。其中两个是 SATA，另外三个是 SAS。
smartctl -i /dev/bus/2 -d megaraid,0我用...检查第一个
smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-155-generic] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Western Digital Caviar Green
Device Model: WDC WD5000AADS-00S9B0
Serial Number: WD-WCAV9V055931
LU WWN Device Id: 5 0014ee 159e577d2
Firmware Version: 01.00A01
User Capacity: 500.107.862.016 bytes [500 GB]
Sector Size: 512 bytes logical/physical
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS (minor revision not indicated)
SATA Version is: SATA 2.6, 3.0 Gb/s
Local Time is: Tue Feb 27 18:27:38 2024 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
smartctl -i /dev/bus/2 -d megaraid,2我用...检查第一个
smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-155-generic] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Vendor: SEAGATE
Product: ST1000NM0045
Revision: N002
Compliance: SPC-4
User Capacity: 1.000.204.886.016 bytes [1,00 TB]
Logical block size: 512 bytes
LU is fully provisioned
Rotation Rate: 7200 rpm
Form Factor: 3.5 inches
Logical Unit id: 0x5000c500856f8ae7
Serial number: ZBS00JGK0000R639QNRU
Device type: disk
Transport protocol: SAS (SPL-3)
Local Time is: Tue Feb 27 18:30:35 2024 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
Temperature Warning: Enabled
问题仍然存在：在 SAS 磁盘的情况下，如何读取输出数据？