使用Megacli64對服務器物理磁盤作Raid並經過uuid方式掛載

時間 2019-11-10

標籤使用 megacli64 megacli 服務器物理磁盤 raid 並經 uuid 方式欄目存儲简体版

原文原文鏈接

需求說明：公司最近來了一批服務器，用於大數據業務部署。數據節點服務器由14塊物理磁盤，其中有2塊是900G的盤，12塊是4T的盤。在服務器系統安裝時，進入系統的BIOS界面：1）將2塊900G的磁盤作成raid1用做系統盤（順便說一下：raid0最少須要1塊磁盤；raid1最少須要2塊磁盤；raid10最少須要4塊磁盤，raid5至少須要3塊磁盤）；2）將其中的2塊4T的磁盤作成raid1，分別掛載到/data1和/data2用做大數據日誌存儲；3）另外的10塊4T的磁盤在系統安裝時沒作raid也沒作分區，打算在系統安裝後，登陸到系統終端經過命令行進行直接進行10塊盤的格式化，並分別掛載到/data三、/data四、/data五、/data六、/data七、/data八、/data九、/data十、/data十一、/data12，用做大數據業務的數據盤，文件格式爲ext4，採用uuid方式掛載，掛載屬性爲noatime,nobarrier。node

待服務器系統安裝後，登陸機器，使用"fdisk -l"命令，發現除了看到4塊作raid的盤，其他的10塊物理磁盤看不到（硬盤默認採用的是raid模式，若是不作raid陣列的話，就是別不了。能夠在BIOS界面裏修改硬盤模式爲IDE模式或AHCI模式）：linux

[root@data-node01 ~]# fdisk -l

Disk /dev/sdb: 2001.1 GB, 2001111154688 bytes
255 heads, 63 sectors/track, 243287 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0004a319

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1      243288  1954208768   83  Linux

Disk /dev/sdd: 4000.2 GB, 4000225165312 bytes
255 heads, 63 sectors/track, 486333 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/sdf: 4000.2 GB, 4000225165312 bytes
255 heads, 63 sectors/track, 486333 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/sde: 4000.2 GB, 4000225165312 bytes
255 heads, 63 sectors/track, 486333 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/sdh: 4000.2 GB, 4000225165312 bytes
255 heads, 63 sectors/track, 486333 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/sda: 899.5 GB, 899527213056 bytes
255 heads, 63 sectors/track, 109361 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00026ac4

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          52      409600   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2              52        4229    33554432   82  Linux swap / Solaris
/dev/sda3            4229      109362   844479488   83  Linux

Disk /dev/sdc: 1999.1 GB, 1999114010624 bytes
255 heads, 63 sectors/track, 243045 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0006d390

   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1               1      243046  1952258048   83  Linux

這時候，須要用到一款管理維護硬件RAID軟件-MegaCli，能夠經過它來了解當前raid卡的全部信息，包括 raid卡的型號，raid的陣列類型，raid 上各磁盤狀態，等等。操做記錄以下：緩存

1）下載及安裝MegaCLI工具
下載地址：https://pan.baidu.com/s/1TAGHjTA19ZR8MGODaqy7Mg
提取密碼：msbq

下載到/usr/loca/src目錄下
[root@data-node01 ~]# cd /usr/local/src/
[root@data-node01 src]# ls
ibm_utl_sraidmr_megacli-8.00.48_linux_32-64.zip
[root@data-node01 src]# unzip ibm_utl_sraidmr_megacli-8.00.48_linux_32-64.zip
[root@data-node01 src]# cd linux/
[root@data-node01 linux]# ls
Lib_Utils-1.00-09.noarch.rpm  MegaCli-8.00.48-1.i386.rpm
[root@data-node01 linux]# rpm -ivh Lib_Utils-1.00-09.noarch.rpm MegaCli-8.00.48-1.i386.rpm

說明：安裝完畢以後MegaCli64所在路徑爲/opt/MegaRAID/MegaCli/MegaCli64，在此路徑下能夠運行MegaCli64工具，切換到其它路徑下則不能執行，
此時爲了使用方便，能夠考慮將/opt/MegaRAID/MegaCli/MegaCli64追加到系統PATH變量，或者像下面這樣作（建議）：
[root@data-node01 linux]# ln -s /opt/MegaRAID/MegaCli/MegaCli64 /bin/MegaCli64
[root@data-node01 linux]# ln -s /opt/MegaRAID/MegaCli/MegaCli64 /sbin/MegaCli64

2）使用MegaCli64命令進行相關操做
先查看磁盤數量。以下能夠看出，一共有14塊物理磁盤
[root@data-node01 linux]# MegaCli64 -PDList -aALL | egrep 'Enclosure Device ID|Slot Number'
Enclosure Device ID: 32
Slot Number: 0
Enclosure Device ID: 32
Slot Number: 1
Enclosure Device ID: 32
Slot Number: 2
Enclosure Device ID: 32
Slot Number: 3
Enclosure Device ID: 32
Slot Number: 4
Enclosure Device ID: 32
Slot Number: 5
Enclosure Device ID: 32
Slot Number: 6
Enclosure Device ID: 32
Slot Number: 7
Enclosure Device ID: 32
Slot Number: 8
Enclosure Device ID: 32
Slot Number: 9
Enclosure Device ID: 32
Slot Number: 10
Enclosure Device ID: 32
Slot Number: 11
Enclosure Device ID: 32
Slot Number: 12
Enclosure Device ID: 32
Slot Number: 13

接着查看磁盤信息 
[root@data-node01 linux]# MegaCli64 -PDList -aALL
Adapter #0

Enclosure Device ID: 32
Slot Number: 0
Enclosure position: 0
Device Id: 0
Sequence Number: 2
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SATA
Raw Size: 3.638 TB [0x1d1c0beb0 Sectors]
Non Coerced Size: 3.637 TB [0x1d1b0beb0 Sectors]
Coerced Size: 3.637 TB [0x1d1b00000 Sectors]
Firmware state: Online, Spun Up
SAS Address(0): 0x500056b3983fbac0
Connected Port Number: 0(path0) 
Inquiry Data:         4837K2DVF7DETOSHIBA MG04ACA400NY                        FK3D
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None 
Device Speed: 6.0Gb/s 
Link Speed: 6.0Gb/s 
Media Type: Hard Disk Device
Drive Temperature :30C (86.00 F)

...........
...........
Enclosure Device ID: 32
Slot Number: 3
Enclosure position: 0
Device Id: 3
Sequence Number: 2
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SATA
Raw Size: 3.638 TB [0x1d1c0beb0 Sectors]
Non Coerced Size: 3.637 TB [0x1d1b0beb0 Sectors]
Coerced Size: 3.637 TB [0x1d1b00000 Sectors]
Firmware state: unconfigured(good), Spun Up
SAS Address(0): 0x500056b3983fbac3
Connected Port Number: 0(path0) 
Inquiry Data:         4838K1VCF7DETOSHIBA MG04ACA400NY                        FK3D
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None 
Device Speed: 6.0Gb/s 
Link Speed: 6.0Gb/s 
Media Type: Hard Disk Device
Drive Temperature :30C (86.00 F)
...........
...........

如上命令結果信息中，注意查看"Firmware state"的狀態：
若是該狀態爲Online，就說明該磁盤已被作成raid陣列，
若是該狀態爲unconfigured(good)，就說明該磁盤沒有被作成raid陣列，但狀態OK。

由上面命令可知，前2塊4T的磁盤作成了raid，其他10塊4T的磁盤沒有作raid，另2塊900G的磁盤作成了raid。

--------------------------------------------------------------------------------------

如今的作法是：
經過MegaCli工具將那10塊4T的磁盤分別作成raid0，而後格式化成ext4，並使用uuid方式掛載。

依次對第3-12塊盤作成raid0陣列，其中：
-r0表示作成raid0陣列，[32:2]中的32爲Enclosure Device ID，5爲Slot Number。
WB Direct：磁盤Write back
[root@data-node01 linux]# MegaCli64 -CfgLdAdd -r0[32:2] WB Direct -a0
[root@data-node01 linux]# MegaCli64 -CfgLdAdd -r0[32:3] WB Direct -a0
[root@data-node01 linux]# MegaCli64 -CfgLdAdd -r0[32:4] WB Direct -a0
[root@data-node01 linux]# MegaCli64 -CfgLdAdd -r0[32:5] WB Direct -a0
[root@data-node01 linux]# MegaCli64 -CfgLdAdd -r0[32:6] WB Direct -a0
[root@data-node01 linux]# MegaCli64 -CfgLdAdd -r0[32:7] WB Direct -a0
[root@data-node01 linux]# MegaCli64 -CfgLdAdd -r0[32:8] WB Direct -a0
[root@data-node01 linux]# MegaCli64 -CfgLdAdd -r0[32:9] WB Direct -a0
[root@data-node01 linux]# MegaCli64 -CfgLdAdd -r0[32:10] WB Direct -a0
[root@data-node01 linux]# MegaCli64 -CfgLdAdd -r0[32:11] WB Direct -a0

而後再次查看磁盤狀況，發現"Firmware state"的狀態都爲Online，即全部磁盤都在raid陣列中了。
[root@data-node01 linux]# MegaCli64 -PDList -aALL

而後使用"fdisk -l"就能發現全部的物理磁盤了
[root@data-node01 linux]# fdisk -l

Disk /dev/sdb: 1993.4 GB, 1993414541312 bytes
255 heads, 63 sectors/track, 242352 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000cd8df

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1      242353  1946692608   83  Linux

Disk /dev/sda: 899.5 GB, 899527213056 bytes
255 heads, 63 sectors/track, 109361 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000b231b

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          52      409600   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2              52        4229    33554432   82  Linux swap / Solaris
/dev/sda3            4229      109362   844479488   83  Linux

Disk /dev/sdc: 2006.8 GB, 2006810624000 bytes
255 heads, 63 sectors/track, 243980 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000010e5

   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1               1      243981  1959774208   83  Linux

Disk /dev/sdd: 4000.2 GB, 4000225165312 bytes
255 heads, 63 sectors/track, 486333 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/sde: 4000.2 GB, 4000225165312 bytes
255 heads, 63 sectors/track, 486333 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/sdf: 4000.2 GB, 4000225165312 bytes
255 heads, 63 sectors/track, 486333 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/sdg: 4000.2 GB, 4000225165312 bytes
255 heads, 63 sectors/track, 486333 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/sdh: 4000.2 GB, 4000225165312 bytes
255 heads, 63 sectors/track, 486333 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/sdi: 4000.2 GB, 4000225165312 bytes
255 heads, 63 sectors/track, 486333 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/sdj: 4000.2 GB, 4000225165312 bytes
255 heads, 63 sectors/track, 486333 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/sdk: 4000.2 GB, 4000225165312 bytes
255 heads, 63 sectors/track, 486333 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/sdl: 4000.2 GB, 4000225165312 bytes
255 heads, 63 sectors/track, 486333 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000


Disk /dev/sdm: 4000.2 GB, 4000225165312 bytes
255 heads, 63 sectors/track, 486333 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

---------------------------------------------------------------------------

對這10塊磁盤進行格式化，腳本以下：
[root@data-node01 ~]# cat disk.list 
/dev/sdd
/dev/sde
/dev/sdf
/dev/sdg
/dev/sdh
/dev/sdi
/dev/sdj
/dev/sdk
/dev/sdl
/dev/sdm

[root@data-node01 ~]# cat mkfs.disk.sh 
#!/bin/bash
for i in `cat /root/disk.list`
do
 echo 'y' | /sbin/mkfs.ext4 $i &
done

[root@data-node01 ~]# sh -x mkfs.disk.sh

接着進行掛載
[root@data-node01 ~]# /bin/mkdir /data{3,4,5,6,7,8,9,10,11,12}

查看這10塊盤的uuid（下面兩種方式均可以）
[root@data-node01 ~]# blkid
[root@data-node01 ~]# ls -l /dev/disk/by-uuid/

[root@data-node01 ~]# blkid
/dev/sda3: UUID="964bec23-58b4-4a6b-a96f-f2e3222fc096" TYPE="ext4" 
/dev/sdc1: UUID="9acdef9d-fbe1-4d9f-82ff-9e9920df868e" TYPE="ext4" 
/dev/sdb1: UUID="696f5971-4c7c-4312-a1c3-a20fc3772299" TYPE="ext4" 
/dev/sda1: UUID="ee26ded4-8334-4a0f-84bc-cc97d103714e" TYPE="ext4" 
/dev/sda2: UUID="316cb693-05fe-473d-a2ff-3c3c0e0e6c3d" TYPE="swap" 
/dev/sdd: UUID="f92e73be-526d-4d84-8f5b-95273ebbd352" TYPE="ext4" 
/dev/sde: UUID="0a6404ea-60dc-4e3e-b542-48a313e149dd" TYPE="ext4" 
/dev/sdf: UUID="05891dd0-256a-4f7f-a2de-f1f858eb2a95" TYPE="ext4" 
/dev/sdg: UUID="77df1f77-0168-430e-96a3-f2eb44e15242" TYPE="ext4" 
/dev/sdh: UUID="e1f11339-ad68-44a1-a600-066094439ed2" TYPE="ext4" 
/dev/sdi: UUID="628f1658-d8f9-4573-a124-0712b0c29e90" TYPE="ext4" 
/dev/sdj: UUID="9ee336b0-3960-4cfd-9cb6-c92535f45ebd" TYPE="ext4" 
/dev/sdk: UUID="bb6c1e2d-41b8-407d-b6df-df2e3ffc9c52" TYPE="ext4" 
/dev/sdl: UUID="9ca6aecf-e0f1-4338-a7eb-e8a1d2f3b017" TYPE="ext4" 
/dev/sdm: UUID="a5bf2880-4981-462a-8042-c6e913627c3d" TYPE="ext4" 

單獨找出這10塊磁盤的uuid
[root@data-node01 ~]# blkid|tail -10|awk '{print $2}'
UUID="f92e73be-526d-4d84-8f5b-95273ebbd352"
UUID="0a6404ea-60dc-4e3e-b542-48a313e149dd"
UUID="05891dd0-256a-4f7f-a2de-f1f858eb2a95"
UUID="77df1f77-0168-430e-96a3-f2eb44e15242"
UUID="e1f11339-ad68-44a1-a600-066094439ed2"
UUID="628f1658-d8f9-4573-a124-0712b0c29e90"
UUID="9ee336b0-3960-4cfd-9cb6-c92535f45ebd"
UUID="bb6c1e2d-41b8-407d-b6df-df2e3ffc9c52"
UUID="9ca6aecf-e0f1-4338-a7eb-e8a1d2f3b017"
UUID="a5bf2880-4981-462a-8042-c6e913627c3d"

[root@data-node01 ~]# blkid|tail -10|awk '{print $2}'|sed 's/"//g'
UUID=f92e73be-526d-4d84-8f5b-95273ebbd352
UUID=0a6404ea-60dc-4e3e-b542-48a313e149dd
UUID=05891dd0-256a-4f7f-a2de-f1f858eb2a95
UUID=77df1f77-0168-430e-96a3-f2eb44e15242
UUID=e1f11339-ad68-44a1-a600-066094439ed2
UUID=628f1658-d8f9-4573-a124-0712b0c29e90
UUID=9ee336b0-3960-4cfd-9cb6-c92535f45ebd
UUID=bb6c1e2d-41b8-407d-b6df-df2e3ffc9c52
UUID=9ca6aecf-e0f1-4338-a7eb-e8a1d2f3b017
UUID=a5bf2880-4981-462a-8042-c6e913627c3d

將這10塊磁盤的uuid好放到/etc/fastab開啓啓動文件裏
[root@data-node01 ~]# cat /root/a.txt 
/data3                  ext4    noatime,nobarrier    0 0
/data4                  ext4    noatime,nobarrier    0 0
/data5                  ext4    noatime,nobarrier    0 0
/data6                  ext4    noatime,nobarrier    0 0
/data7                  ext4    noatime,nobarrier    0 0
/data8                  ext4    noatime,nobarrier    0 0
/data9                  ext4    noatime,nobarrier    0 0
/data10                 ext4    noatime,nobarrier    0 0
/data11                 ext4    noatime,nobarrier    0 0
/data12                 ext4    noatime,nobarrier    0 0

[root@data-node01 ~]# blkid|tail -10|awk '{print $2}'|sed 's/"//g'|paste - /root/a.txt  >> /etc/fastab              #"paste -" 表示將兩個文件內容合併
UUID=f92e73be-526d-4d84-8f5b-95273ebbd352 /data3                  ext4    noatime,nobarrier    0 0
UUID=0a6404ea-60dc-4e3e-b542-48a313e149dd /data4                  ext4    noatime,nobarrier    0 0
UUID=05891dd0-256a-4f7f-a2de-f1f858eb2a95 /data5                  ext4    noatime,nobarrier    0 0
UUID=77df1f77-0168-430e-96a3-f2eb44e15242 /data6                  ext4    noatime,nobarrier    0 0
UUID=e1f11339-ad68-44a1-a600-066094439ed2 /data7                  ext4    noatime,nobarrier    0 0
UUID=628f1658-d8f9-4573-a124-0712b0c29e90 /data8                  ext4    noatime,nobarrier    0 0
UUID=9ee336b0-3960-4cfd-9cb6-c92535f45ebd /data9                  ext4    noatime,nobarrier    0 0
UUID=bb6c1e2d-41b8-407d-b6df-df2e3ffc9c52 /data10                 ext4    noatime,nobarrier    0 0
UUID=9ca6aecf-e0f1-4338-a7eb-e8a1d2f3b017 /data11                 ext4    noatime,nobarrier    0 0
UUID=a5bf2880-4981-462a-8042-c6e913627c3d /data12                 ext4    noatime,nobarrier    0 0

最後將服務器經過"reboot"重啓，重啓以後查看磁盤及掛載狀態，就能看到那10塊磁盤的掛載狀況
[root@data-node01 ~]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda3       793G  3.1G  750G   1% /
tmpfs            63G     0   63G   0% /dev/shm
/dev/sda1       380M   78M  282M  22% /boot
/dev/sdb1       1.8T   68M  1.7T   1% /data1
/dev/sdc1       1.8T   68M  1.8T   1% /data2
/dev/sdd        3.6T   68M  3.4T   1% /data3
/dev/sde        3.6T   68M  3.4T   1% /data4
/dev/sdf        3.6T   68M  3.4T   1% /data5
/dev/sdg        3.6T   68M  3.4T   1% /data6
/dev/sdh        3.6T   68M  3.4T   1% /data7
/dev/sdi        3.6T   68M  3.4T   1% /data8
/dev/sdj        3.6T   68M  3.4T   1% /data9
/dev/sdk        3.6T   68M  3.4T   1% /data10
/dev/sdl        3.6T   68M  3.4T   1% /data11
/dev/sdm        3.6T   68M  3.4T   1% /data12

[root@data-node01 ~]# mount 
/dev/sda3 on / type ext4 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw)
/dev/sda1 on /boot type ext4 (rw)
/dev/sdb1 on /data1 type ext4 (rw)
/dev/sdc1 on /data2 type ext4 (rw)
/dev/sdd on /data3 type ext4 (rw,noatime,nobarrier)
/dev/sde on /data4 type ext4 (rw,noatime,nobarrier)
/dev/sdf on /data5 type ext4 (rw,noatime,nobarrier)
/dev/sdg on /data6 type ext4 (rw,noatime,nobarrier)
/dev/sdh on /data7 type ext4 (rw,noatime,nobarrier)
/dev/sdi on /data8 type ext4 (rw,noatime,nobarrier)
/dev/sdj on /data9 type ext4 (rw,noatime,nobarrier)
/dev/sdk on /data10 type ext4 (rw,noatime,nobarrier)
/dev/sdl on /data11 type ext4 (rw,noatime,nobarrier)
/dev/sdm on /data12 type ext4 (rw,noatime,nobarrier)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)

------------MegaCli相關命令使用梳理------------bash

1）添加新的磁盤（即對新的磁盤作raid陣列），作成raid0陣列
[root@date-test ~]# MegaCli64 -CfgLdAdd -r0[32:5] WB Direct -a0
說明：
r0: raid0，即將這快盤作成raid0磁盤陣列
[32:5]:32爲Enclosure Device ID，5爲Slot Number。即磁盤的序列號信息
WB Direct：磁盤Write back

2）添加一塊帶有殘餘信息的磁盤
[root@date-test ~]# MegaCli64 -cfgforeign -scan -a0
There are 1 foreign configuration(s) on controller 0.

Exit Code: 0x00
說明：因爲是新插入的盤，並且是塊有數據的盤，全部提示有外部配置。
[root@date-test ~]# MegaCli64 -cfgforeign -clear -a0
Foreign configuration 0 is cleared on controller 0.

Exit Code: 0x00
[root@date-test ~]# MegaCli64 -cfgforeign -scan -a0
There is no foreign configuration on controller 0.

Exit Code: 0x00
說明：清除外部配置信息，清除後再次進行查看
[root@date-test ~]# MegaCli64 -CfgLdAdd -r0[32:5] WB Direct -a0
Adapter 0: Created VD 1

Adapter 0: Configured the Adapter!!

Exit Code: 0x00

3）查看Firmware state
[root@date-test ~]# MegaCli64 -PDList -aALL -Nolog|grep '^Firm'
Firmware state: Online, Spun Up
Firmware state: Online, Spun Up
Firmware state: Online, Spun Up
Firmware state: Online, Spun Up
說明：Online狀態表示該磁盤已被作成raid陣列，爲raid在線狀態；若是是unconfigured(good)狀態，就說明該磁盤沒有被作成raid陣列，但狀態OK。

4）關閉JBOD模式
[root@date-test ~]# MegaCli64 -AdpSetProp -EnableJBOD -0 -aALL
Adapter 0: Set JBOD to Disable success.
Exit Code: 0x00

5）檢查raild陣列的級別和配置（MegaCli64 -LDInfo -Lall -aALL）
[root@date-test ~]# MegaCli64 -LDInfo -LALL -aAll | grep RAID
RAID Level          : Primary-1, Secondary-0, RAID Level Qualifier-0
RAID Level          : Primary-1, Secondary-0, RAID Level Qualifier-0
RAID Level          : Primary-1, Secondary-0, RAID Level Qualifier-0
RAID Level          : Primary-0, Secondary-0, RAID Level Qualifier-0

6）檢查raid卡信息
[root@date-test ~]# MegaCli64 -AdpAllInfo -aALL

7）查看硬盤信息 
[root@date-test ~]# MegaCli64 -PDList -aALL 

8）查看電池信息  
[root@date-test ~]# MegaCli64 -AdpBbuCmd -aAll 

9）查看raid卡日誌
[root@date-test ~]# MegaCli64 -FwTermLog -Dsply -aALL 

10）顯示適配器個數
[root@date-test ~]# MegaCli64 -adpCount  

11）顯示適配器時間
[root@date-test ~]# MegaCli64 -AdpGetTime –aALL

12）顯示全部適配器配置信息
[root@date-test ~]# MegaCli64 -AdpAllInfo -aAll 

13）顯示全部邏輯磁盤組信息
[root@date-test ~]# MegaCli64 -LDInfo -LALL -aAll

14）顯示全部的物理信息
[root@date-test ~]# MegaCli64 -PDList -aAll

15）查看充電狀態
[root@date-test ~]# MegaCli64 -AdpBbuCmd -GetBbuStatus -aALL |grep 'Charger Status'

16）查看磁盤緩存策略（下面四種方式）
[root@date-test ~]# MegaCli64 -LDGetProp -Cache -L0 -a0  
[root@date-test ~]# MegaCli64 -LDGetProp -Cache -L1 -a0  
[root@date-test ~]# MegaCli64 -LDGetProp -Cache -LALL -a0  
[root@date-test ~]# MegaCli64 -LDGetProp -Cache -LALL -aALL 
[root@date-test ~]# MegaCli64 -LDGetProp -DskCache -LALL -aALL  

17）設置磁盤緩存策略 
緩存策略解釋：  
WT (Write through  
WB (Write back)  
NORA (No read ahead)  
RA (Read ahead)  
ADRA (Adaptive read ahead)  
Cached  
Direct  

例子
[root@date-test ~]# MegaCli64 -LDSetProp WT|WB|NORA|RA|ADRA -L0 -a0 
或者 
[root@date-test ~]# MegaCli64 -LDSetProp -Cached|-Direct -L0 -a0  
或者
[root@date-test ~]# MegaCli64 -LDSetProp -EnDskCache|-DisDskCache -L0 -a0  

18）建立一個raid5陣列，由物理盤2,3,4構成，該陣列的熱備盤是物理盤5  
[root@date-test ~]# MegaCli64 -CfgLdAdd -r5 [1:2,1:3,1:4] WB Direct -Hsp[1:5] -a0  

19）建立一個raid5陣列，由物理盤2,3,4構成，不指定熱備盤。 
[root@date-test ~]# MegaCli64 -CfgLdAdd -r5 [1:2,1:3,1:4] WB Direct -a0  

20）刪除陣列 
[root@date-test ~]# MegaCli64 -CfgLdDel -L1 -a0  

21）在線添加磁盤
[root@date-test ~]# MegaCli64 -LDRecon -Start -r5 -Add -PhysDrv[1:4] -L1 -a0  

22）陣列建立完後，會有一個初始化同步塊的過程，能夠看看其進度。 
[root@date-test ~]# MegaCli64 -LDInit -ShowProg -LALL -aALL  
或者以動態可視化文字界面顯示 
[root@date-test ~]# MegaCli64 -LDInit -ProgDsply -LALL -aALL 

23）查看陣列後臺初始化進度
[root@date-test ~]# MegaCli64 -LDBI -ShowProg -LALL -aALL  
或者以動態可視化文字界面顯示  
[root@date-test ~]# MegaCli64 -LDBI -ProgDsply -LALL -aALL 

24）指定第5塊盤做爲全局熱備  
[root@date-test ~]# MegaCli64 -PDHSP -Set [-EnclAffinity] [-nonRevertible] -PhysDrv[1:5] -a0  

25）指定爲某個陣列的專用熱備  
[root@date-test ~]# MegaCli64 -PDHSP -Set [-Dedicated [-Array1]] [-EnclAffinity] [-nonRevertible] -PhysDrv[1:5] -a0  

26）刪除全局熱備 
[root@date-test ~]# MegaCli64 -PDHSP -Rmv -PhysDrv[1:5] -a0  

27）將某塊物理盤下線/上線 
[root@date-test ~]# MegaCli64 -PDOffline -PhysDrv [1:4] -a0 
[root@date-test ~]# MegaCli64 -PDOnline -PhysDrv [1:4] -a0  

28）查看物理磁盤重建進度  
[root@date-test ~]# MegaCli64 -PDRbld -ShowProg -PhysDrv [1:5] -a0
以動態可視化文字界面顯示  
[root@date-test ~]# MegaCli64 -PDRbld -ProgDsply -PhysDrv [1:5] -a0