megacli 解决 the controller has data in cache for offline or missing virtual disks问题

Dear 丶 2022-12-27 08:34 203阅读 0赞

# 目的 #

> 更换磁盘后恢复磁盘盘符  
> 磁盘已完成替换

# 现象 #

## 磁盘设备 ##

可以看到， sdb 设备已经不存在

# ls  /dev/sd?
    /dev/sda  /dev/sdc  /dev/sdd  /dev/sde  /dev/sdf  /dev/sdg

## 尝试创建磁盘失败 ##

# megacli -CfgLdAdd -r0 [0:2]  WB Direct -a0
    Adapter 0: Configure Adapter Failed
    zW error description:
     The current operation is not allowed because the controller has data in cache for offline or missing virtual disks.
    Exit Code: 0x54

原因, 磁盘之前已创建了虚拟设备

## 查询虚拟设备 ##

# megacli -LDInfo -LALL –aAll | grep Virtual
    Adapter 0 -- Virtual Drive Information:
    Virtual Drive: 0 (Target Id: 0)
    Virtual Drive: 2 (Target Id: 2)
    Virtual Drive: 3 (Target Id: 3)
    Virtual Drive: 4 (Target Id: 4)
    Virtual Drive: 5 (Target Id: 5)
    Virtual Drive: 6 (Target Id: 6)

查询虚拟设备磁盘关系

# megacli -LDInfo -LALL -aAll  | grep -E "Virtual|Raid\ Level|Mirror|Number|^Size"
    Adapter 0 -- Virtual Drive Information:
    Virtual Drive: 0 (Target Id: 0)
    Size                : 3.637 TB
    Mirror Data         : 3.637 TB
    Number Of Drives    : 2
    Virtual Drive: 2 (Target Id: 2)
    Size                : 3.637 TB
    Number Of Drives    : 1
    Virtual Drive: 3 (Target Id: 3)
    Size                : 3.637 TB
    Number Of Drives    : 1
    Virtual Drive: 4 (Target Id: 4)
    Size                : 3.637 TB
    Number Of Drives    : 1
    Virtual Drive: 5 (Target Id: 5)
    Size                : 3.637 TB
    Number Of Drives    : 1
    Virtual Drive: 6 (Target Id: 6)
    Size                : 3.637 TB
    Number Of Drives    : 1

很明显， Virtual Drive: 1 就是之前替换的磁盘

# megacli -PDList -a0  | grep -E "Slot|DiskGroup"
    Slot Number: 0
    Drive's postion: DiskGroup: 0, Span: 0, Arm: 0
    Slot Number: 1
    Drive's postion: DiskGroup: 0, Span: 0, Arm: 1
    Slot Number: 2
    Slot Number: 3
    Drive's postion: DiskGroup: 1, Span: 0, Arm: 0
    Slot Number: 4
    Drive's postion: DiskGroup: 2, Span: 0, Arm: 0
    Slot Number: 5
    Drive's postion: DiskGroup: 3, Span: 0, Arm: 0
    Slot Number: 6
    Drive's postion: DiskGroup: 4, Span: 0, Arm: 0
    Slot Number: 7
    Drive's postion: DiskGroup: 5, Span: 0, Arm: 0

清理一下缓存

# megacli -DiscardPreservedCache -L1 -a0
    Adapter #0
    Virtual Drive(Target ID 01): Preserved Cache Data Cleared.    <- 这里就把 磁盘缓存给清理掉了
    Exit Code: 0x00

## 重建 raid0 ##

# megacli -CfgLdAdd -r0 [0:2] WB Direct -a0
    
    Adapter 0: Created VD 1
    Adapter 0: Configured the Adapter!!
    Exit Code: 0x00

## 使用磁盘 ##

(sdb 回来了)

# ls /dev/sd?
    /dev/sda  /dev/sdb  /dev/sdc  /dev/sdd  /dev/sde  /dev/sdf  /dev/sdg

分区格式化

# parted -s /dev/sdb  mklabel gpt
    ]# parted /dev/sdb  mkpart primary xfs 1 100%
    Information: You may need to update /etc/fstab.
    
    # mkfs -t xfs -i size=1024 /dev/sdb1
    meta-data=/dev/sdb1              isize=1024   agcount=4, agsize=244140480 blks
             =                       sectsz=4096  attr=2, projid32bit=1
             =                       crc=1        finobt=0, sparse=0
    data     =                       bsize=4096   blocks=976561920, imaxpct=5
             =                       sunit=0      swidth=0 blks
    naming   =version 2              bsize=4096   ascii-ci=0 ftype=1
    log      =internal log           bsize=4096   blocks=476836, version=2
             =                       sectsz=4096  sunit=1 blks, lazy-count=1
    realtime =none                   extsz=4096   blocks=0, rtextents=0