linux - "mptbase: ioc0: RAID STATUS CHANGE for PhysDisk 1 id=8"是什么意思？

Question

我在 /var/log/message 中收到以下消息:

Sep  6 04:23:30 localhost kernel: mptbase: ioc0: RAID STATUS CHANGE for PhysDisk 1 id=8
Sep  6 04:23:30 localhost kernel: mptbase: ioc0:   SMART data received, ASC/ASCQ = 5dh/00h
Sep  6 04:26:01 localhost kernel: mptbase: ioc0: RAID STATUS CHANGE for PhysDisk 1 id=8
Sep  6 04:26:01 localhost kernel: mptbase: ioc0:   SMART data received, ASC/ASCQ = 5dh/05h

这个消息经常重复，已经持续两周了。但是服务器似乎没问题，我没有注意到任何服务故障。

这条消息是什么意思？

Answer 1

所以 5Dh 代表“信息异常”。 05h 是“访问时间超出限制”。除非性能是您的主要关注点，否则这听起来并不太令人担忧。 00h 似乎是超时，所以我猜驱动器已经使用了一段时间。如果您想真正主动，请继续更换驱动器。

5Dh引用

来自 the bowels of googles cache

From: "Elliott, Robert (Hou)" <Robert.Elliott@COMPAQ.com>
To: "'t10@symbios.com'" <t10@aztec.co.lsil.com>
Subject: ASC/ASCQ 5Dh and SMART disk drives
Date: Tue, 6 Jul 1999 10:07:37 -0500 
Extracted-To: T10_Reflector

* From the T10 Reflector (t10@symbios.com), posted by:
* "Elliott, Robert (Hou)" <Robert.Elliott@COMPAQ.com>
*
ASC code 5Dh is used for Informational Exceptions.  Disk drives following
the "SMART" (non)standard use ASCQs from 10-7Fh to report detailed failure
prediction information.  However, SPC-2 Table C.1 only defines those ASCQs
for RBC devices.  RBC Table 18 defines the meaning of each code in that
region.

How should we make these codes legal for SBC devices?  Ralph doesn't want
to just add SBC to the list of standards that use those codes, since it
doesn't define their meaning.  A reader wouldn't know to refer to RBC for
the definitions.  The codes are too disk-specific for SPC-2 itself.

If an SBC-2 project is started, it could certainly go there.  Gene noted
that the table could be added to the ISO version of SBC, since that is
still open.


Background:
SPC-2 revision 11 lists these ASC/ASCQ assignments in its annex 
(table C.1):
5D 00 Failure Prediction Threshold Exceeded (all devices)
5D 01 Media Failure Prediction Threshold Exceeded (MMC-2, RBC)
5D 02 Logical Unit Failure Prediction Threshold Exceeded (MMC-2)
5D FF Failure Prediction Threshold Exceeded (False) (all devices)
5D nn Detailed Failure Prediction Information (nn=10h-7Fh)(RBC)

RBC defines the ASCQs in this manner:
    Value       Meaning
upper nibble:   
    0       General Hard Drive Failure 
    1h      Hardware impending failure
    2h      Controller impending failure
    3h      Data Channel impending failure
    4h      Servo impending failure
    5h      Spindle impending failure
    6h      Firmware impending failure
    7h      Reserved
    8h-Fh       Vendor-specific in SPC-2
lower nibble: 
        0       General Hard Drive Failure
        1h      Drive Error threshold exceeding limits.
        2h      Data Error Rate exceeding limits.
        3h      Seek Error Rate exceeding limits.
        4h      LBA reassignment exceeding limits.
        5h      Access Times exceeding limits.  
        6h      Start Unit Times exceeding limits.
        7h      Channel parametrics indicate impending failure
        8h      Controller detected impending failure.
        9h      Throughput performance
    Ah      Seek time performance
    Bh      Spin-up retry count
    Ch      Drive calibration retry count
    Dh-Eh       Reserved.