因在linux 系统中无法查看系统磁盘的raid级别，也无法得知raid状态，需要安装额外的包来监控，因是dell服务器，就在dell网站中下载并安装

1、下载链接：驱动程序和下载 | Dell 中国https://www.dell.com/support/home/zh-cn?app=drivers选择产品型号并选择驱动类型

下载的包如下图，下载后上传到/opt目录下

在主机安装并使用

root@hydb opt]# rpm -ivh perccli-1.17.10-1.noarch.rpm
Verifying...                          ################################# [100%]
Preparing...                          ################################# [100%]
Updating / installing...
   1:perccli-1.17.10-1                ################################# [100%]
[root@hydb opt]#

[root@hydb perccli]# ln -s /opt/MegaRAID/perccli/perccli64 /bin/perccli
[root@hydb ~]#

[root@hydb ~]#  perccli /c0/eall/sall show
Controller = 0
Status = Success
Description = Show Drive Information Succeeded.
Drive Information :
=================

-------------------------------------------------------------------------
EID:Slt DID State DG       Size Intf Med SED PI SeSz Model            Sp
-------------------------------------------------------------------------
64:0      2 Onln   0 446.625 GB SATA SSD N   N  512B HFS480G4I5X569N  U  
64:1      0 Onln   0 446.625 GB SATA SSD N   N  512B HFS480G4I5X569N  U  
64:2      1 Onln   1   1.818 TB SAS  HDD N   N  512B ST4000NM026A     U  
64:3      4 Onln   1   1.818 TB SAS  HDD N   N  512B ST4000NM026A     U  
64:4      3 GHS    -   1.818 TB SAS  HDD N   N  512B ST4000NM026A     U  
-------------------------------------------------------------------------

EID-Enclosure Device ID|Slt-Slot No.|DID-Device ID|DG-DriveGroup
DHS-Dedicated Hot Spare|UGood-Unconfigured Good|GHS-Global Hotspare
UBad-Unconfigured Bad|Onln-Online|Offln-Offline|Intf-Interface
Med-Media Type|SED-Self Encryptive Drive|PI-Protection Info
SeSz-Sector Size|Sp-Spun|U-Up|D-Down|T-Transition|F-Foreign
UGUnsp-Unsupported|UGShld-UnConfigured shielded|HSPShld-Hotspare shielded
CFShld-Configured shielded|Cpybck-CopyBack|CBShld-Copyback Shielded
[root@hydb ~]# perccli /c0/vall show
Controller = 0
Status = Success
Description = None

Virtual Drives :
==============

-----------------------------------------------------------------------
DG/VD TYPE  State Access Consist Cache Cac sCC       Size Name         
-----------------------------------------------------------------------
1/238 RAID1 Optl  RW     No      RWBD  -   OFF   1.818 TB loccalbackup
0/239 RAID1 Optl  RW     Yes     RWBD  -   OFF 446.625 GB              
-----------------------------------------------------------------------

Cac=CacheCade|Rec=Recovery|OfLn=OffLine|Pdgd=Partially Degraded|dgrd=Degraded
Optl=Optimal|RO=Read Only|RW=Read Write|HD=Hidden|B=Blocked|Consist=Consistent|
R=Read Ahead Always|NR=No Read Ahead|WB=WriteBack|
AWB=Always WriteBack|WT=WriteThrough|C=Cached IO|D=Direct IO|sCC=Scheduled
Check Consistency
[root@hydb ~]# perccli show ctrlcount
Status Code = 0
Status = Success
Description = None

Controller Count = 1

查看控制器的信息

**perccli show ctrlcount 查看有几个控制器即几个raid卡 **

perccli show 显示raid卡信息
[root@hydb ~]# perccli show
Status Code = 0
Status = Success
Description = None

Number of Controllers = 1
Host Name = dbdg
Operating System  = Linux5.15.0-101.103.2.1.el8uek.x86_64

System Overview :
===============

---------------------------------------------------------------------------
Ctl Model           Ports PDs DGs DNOpt VDs VNOpt BBU sPR DS EHS ASOs Hlth
---------------------------------------------------------------------------
  0 PERCH750Adapter     8   5   2     0   2     0 Opt On  -  N      0 Opt  
---------------------------------------------------------------------------

Ctl=Controller Index|DGs=Drive groups|VDs=Virtual drives|Fld=Failed
PDs=Physical drives|DNOpt=DG NotOptimal|VNOpt=VD NotOptimal|Opt=Optimal
Msng=Missing|Dgd=Degraded|NdAtn=Need Attention|Unkwn=Unknown
sPR=Scheduled Patrol Read|DS=DimmerSwitch|EHS=Emergency Hot Spare
Y=Yes|N=No|ASOs=Advanced Software Options|BBU=Battery backup unit
Hlth=Health|Safe=Safe-mode boot
[root@hydb ~]# perccli /c0 show
Generating detailed summary of the adapter, it may take a while to complete.

Controller = 0
Status = Success
Description = None

Vendor Id = 0x1000
Device Id = 0x10E2
SubVendor Id = 0x1028
SubDevice Id = 0x2176
Host Interface = PCI-E
Device Interface = SATA-3G
Bus Number = 134
Device Number = 0
Function Number = 0
Drive Groups = 2

TOPOLOGY :
========

--------------------------------------------------------------------------
DG Arr Row EID:Slot DID Type  State BT       Size PDC  PI SED DS3  FSpace
--------------------------------------------------------------------------
 0 -   -   -        -   RAID1 Optl  N  446.625 GB dflt N  N   dflt N      
 0 0   -   -        -   RAID1 Optl  N  446.625 GB dflt N  N   dflt N      
 0 0   0   64:0     2   DRIVE Onln  N  446.625 GB dflt N  N   dflt -      
 0 0   1   64:1     0   DRIVE Onln  N  446.625 GB dflt N  N   dflt -      
 1 -   -   -        -   RAID1 Optl  Y    1.818 TB dflt N  N   dflt N      
 1 0   -   -        -   RAID1 Optl  Y    1.818 TB dflt N  N   dflt N      
 1 0   0   64:2     1   DRIVE Onln  N    1.818 TB dflt N  N   dflt -      
 1 0   1   64:3     4   DRIVE Onln  N    1.818 TB dflt N  N   dflt -      
--------------------------------------------------------------------------

DG=Disk Group Index|Arr=Array Index|Row=Row Index|EID=Enclosure Device ID
DID=Device ID|Type=Drive Type|Onln=Online|Rbld=Rebuild|Dgrd=Degraded
Pdgd=Partially degraded|Offln=Offline|BT=Background Task Active
PDC=PD Cache|PI=Protection Info|SED=Self Encrypting Drive|Frgn=Foreign
DS3=Dimmer Switch 3|dflt=Default|Msng=Missing|FSpace=Free Space Present

Virtual Drives = 2

VD LIST :
=======

-----------------------------------------------------------------------
DG/VD TYPE  State Access Consist Cache Cac sCC       Size Name         
-----------------------------------------------------------------------
0/239 RAID1 Optl  RW     Yes     RWBD  -   OFF 446.625 GB              
1/238 RAID1 Optl  RW     No      RWBD  -   OFF   1.818 TB loccalbackup
-----------------------------------------------------------------------

Cac=CacheCade|Rec=Recovery|OfLn=OffLine|Pdgd=Partially Degraded|dgrd=Degraded
Optl=Optimal|RO=Read Only|RW=Read Write|HD=Hidden|B=Blocked|Consist=Consistent|
R=Read Ahead Always|NR=No Read Ahead|WB=WriteBack|
AWB=Always WriteBack|WT=WriteThrough|C=Cached IO|D=Direct IO|sCC=Scheduled
Check Consistency

Physical Drives = 5

PD LIST :
=======

-------------------------------------------------------------------------
EID:Slt DID State DG       Size Intf Med SED PI SeSz Model            Sp
-------------------------------------------------------------------------
64:0      2 Onln   0 446.625 GB SATA SSD N   N  512B HFS480G4I5X569N  U  
64:1      0 Onln   0 446.625 GB SATA SSD N   N  512B HFS480G4I5X569N  U  
64:2      1 Onln   1   1.818 TB SAS  HDD N   N  512B ST4000NM026A     U  
64:3      4 Onln   1   1.818 TB SAS  HDD N   N  512B ST4000NM026A     U  
64:4      3 GHS    -   1.818 TB SAS  HDD N   N  512B ST4000NM026A     U  
-------------------------------------------------------------------------

EID-Enclosure Device ID|Slt-Slot No.|DID-Device ID|DG-DriveGroup
DHS-Dedicated Hot Spare|UGood-Unconfigured Good|GHS-Global Hotspare
UBad-Unconfigured Bad|Onln-Online|Offln-Offline|Intf-Interface
Med-Media Type|SED-Self Encryptive Drive|PI-Protection Info
SeSz-Sector Size|Sp-Spun|U-Up|D-Down|T-Transition|F-Foreign
UGUnsp-Unsupported|UGShld-UnConfigured shielded|HSPShld-Hotspare shielded
CFShld-Configured shielded|Cpybck-CopyBack|CBShld-Copyback Shielded

BBU_Info :
========

-------------------------------------------------------------------
Model State   RetentionTime Temp Mode MfgDate Next Learn           
-------------------------------------------------------------------
BBU   Optimal 0 hour(s)     31C  -    0/00/00 2024/02/20  03:22:19
-------------------------------------------------------------------
[root@hydb ~]#
看磁盘的Device id、Slot No. 以及DriveGroup
[root@hydb ~]#  perccli /c0/eall/sall show
Controller = 0
Status = Success
Description = Show Drive Information Succeeded.

Drive Information :
=================

-------------------------------------------------------------------------
EID:Slt DID State DG       Size Intf Med SED PI SeSz Model            Sp
-------------------------------------------------------------------------
64:0      2 Onln   0 446.625 GB SATA SSD N   N  512B HFS480G4I5X569N  U  
64:1      0 Onln   0 446.625 GB SATA SSD N   N  512B HFS480G4I5X569N  U  
64:2      1 Onln   1   1.818 TB SAS  HDD N   N  512B ST4000NM026A     U  
64:3      4 Onln   1   1.818 TB SAS  HDD N   N  512B ST4000NM026A     U  
64:4      3 GHS    -   1.818 TB SAS  HDD N   N  512B ST4000NM026A     U  
-------------------------------------------------------------------------

EID-Enclosure Device ID|Slt-Slot No.|DID-Device ID|DG-DriveGroup
DHS-Dedicated Hot Spare|UGood-Unconfigured Good|GHS-Global Hotspare
UBad-Unconfigured Bad|Onln-Online|Offln-Offline|Intf-Interface
Med-Media Type|SED-Self Encryptive Drive|PI-Protection Info
SeSz-Sector Size|Sp-Spun|U-Up|D-Down|T-Transition|F-Foreign
UGUnsp-Unsupported|UGShld-UnConfigured shielded|HSPShld-Hotspare shielded
CFShld-Configured shielded|Cpybck-CopyBack|CBShld-Copyback Shielded

[root@hydb ~]#
[root@hydb ~]# lsscsi
[0:3:110:0]  disk    DELL     PERC H750 Adp    5.16  /dev/sda
[0:3:111:0]  disk    DELL     PERC H750 Adp    5.16  /dev/sdb
[root@hydb ~]#