Check disk failure and send alert

when no disks failed, the output of storcli is:

<bash [root@disk-test-node1 ~]# storcli64 /c0/vall show Controller = 0 Status = Success Description = None

Virtual Drives :

==

---

DG/VD TYPE State Access Consist Cache Cac sCC Size Name

---

0/0 RAID6 Optl RW No RWBD - ON 1.063 TB

---

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

</syntaxhighlight>

when disk failure occurs, the output is:

[root@disk-test-node1 ~]# storcli64 /c0/vall show 
Controller = 0
Status = Success
Description = None


Virtual Drives :
==============

-------------------------------------------------------------
DG/VD TYPE  State Access Consist Cache Cac sCC     Size Name 
-------------------------------------------------------------
0/0   RAID6 Pdgd  RW     No      RWBD  -   ON  1.063 TB      
-------------------------------------------------------------

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

To check if any disk failure occurs, we can use this command:

[root@disk-test-node1 ~]# storcli64 /c0/vall show |grep '\ Optl\ '
0/0   RAID6 Optl  RW     No      RWBD  -   ON  1.063 TB