qnap IO 错误消除 | 夜法之书

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问题

[Storage & Snapshots] Failed to check file system of volume "SYS". Storage pool: 1. Volume could not be unmounted.

检测问题可选命令有

md_checker

pvdisplay

vgdisplay

lvdisplay

先备份数据，rsync比HBS3好用多了。

如果没有坏块，就在下图位置扫描坏块，扫描完，自动清除异常标志

如果有坏块，可以使用 “DiskGenius”扫描修复

開啟SSH
登入 console
# sed -i '/pd_err_wwn_/d' /mnt/HDA_ROOT/.conf
重啟 NAS.

Change the “/etc/lvm/lvm.conf” as described above
In general one should configure the LVM to filter out all sd* devices and only see the /dev/emcpower* or /dev/mapper/* devices. If there are other non-mutipathed SCSI devices LVM volumes, e.g: /dev/cciss/*, then set the filter accordingly, for example:

filter = [ "r/sd.*/" "a/dev/cciss/*/" "a/dev/emcpower.*/" "a/dev/mapper/*/" ]

With this setting, the ‘lvmdiskscan’ and ‘pvscan’ commands should only find the /dev/ccisss/, /dev/emcpower and /dev/mapper/* devices.

# vgchange -an

# vgscan

# vgchange -ay

\8. Mount any LVM-based filesystems.

Start any applications/services requring access to LVM managed devices/filesystems.

为了安全和稳定性，有坏块后，备份数据，使用DiskGenius修复坏块，（只能修复逻辑坏块，不能修复物理坏块），然后最好全盘格式化再使用。

SDD可以使用低级格式化，但会全盘减少一次写寿命。尽量少用。

进入维护模式，在进行修复，有可能解决问题！

qnap IO 错误消除

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Posted on

August 18, 2021

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