irrelevant
VDI/UIS/ONESTOR one-click checking shows the logical disk cache failure
1. /opt/MegaRAID/storcli/storcli64 /call/vall show to check the current virtual disk status, in this case the cache of vd6 is abnormal;
2. /opt/MegaRAID/storcli/storcli64 /c0/v6 show all to check the current detail info of vd6
RWBD---R means Read Ahead Always; WB means WriteBack; D means Direct IO
[root@cvknode2 ~]# /opt/MegaRAID/storcli/storcli64 /c0/v6 show all
CLI Version = 007.1506.0000.0000 Aug 11, 2020
Operating system = Linux 5.10.38-21.hl02.el7.x86_64
COntroller= 0
Status = Success
Description = None
/c0/v6 :
======
-------------------------------------------------------------
DG/VD TYPE State Access Consist Cache Cac sCC Size Name
-------------------------------------------------------------
6/6 RAID0 Optl RWBD Yes - OFF 5.457 TB
-------------------------------------------------------------
VD=Virtual Drive| DG=Drive Group|Rec=Recovery
Cac=CacheCade|OfLn=OffLine|Pdgd=Partially
Degraded|Dgrd=Degraded
Optl=Optimal|dflt=Default|RO=Read Only|RW=Read Write|HD=Hidden|TRANS=TransportReady|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
VD6 Properties :
==============
Strip Size = 256 KB
Number of Blocks = 11719933952
VD has Emulated PD = Yes
Span Depth = 1
Number of Drives Per Span = 1
Encryption = None
Data Protection = None
Active OperatiOns= None
Exposed to OS = Yes
OS Drive Name = /dev/sdo
Creation Date = 23-03-2023
Creation Time = 07:06:45 AM
Emulation type = default
Cachebypass size = Cachebypass-64k
Cachebypass Mode = Cachebypass
IntelligentIs LD Ready for OS Requests = Yes
SCSI NAA Id = 600062b20a4bea402baeb7056ba74fd2
Unmap Enabled = No
1. Modify the virtual disk read cache from RA to NoRA
/opt/MegaRAID/storcli/storcli64 /c0/v6 set rdcache=NoRA
2. Then check the vd status:
[root@cvknode2 ~]# /opt/MegaRAID/storcli/storcli64 /c0/v6 show all
CLI Version = 007.1506.0000.0000 Aug 11, 2020
Operating system = Linux 5.10.38-21.hl02.el7.x86_64
Controller = 0
Status = Success
Description = None
/c0/v6 :
======
-------------------------------------------------------------
DG/VD TYPE State Access Consist Cache Cac sCC Size Name
-------------------------------------------------------------
6/6 RAID0 Optl RW Yes NRWBD - OFF 5.457 TB
-------------------------------------------------------------
VD=Virtual Drive| DG=Drive Group|Rec=Recovery
Cac=CacheCade|OfLn=OffLine|Pdgd=Partially Degraded|Dgrd=Degraded
Optl=Optimal|dflt=Default|RO=Read Only|RW=Read Write|HD=Hidden|TRANS=TransportReady|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
PDs for VD 6 :
============
----------------------------------------------------------------------------
EID:Slt DID State DG Size Intf Med SED PI SeSz Model Sp Type
----------------------------------------------------------------------------
134:7 8 Onln 6 5.457 TB SAS HDD N N 512B ST6000NM0095 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|Sntze=Sanitize|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=UGood Unsupported|UGShld=UGood shielded|HSPShld=Hotspare shielded
CFShld=Configured shielded|Cpybck=CopyBack|CBShld=Copyback Shielded
UBUnsp=UBad Unsupported|Rbld=Rebuild
VD6 Properties :
==============
Strip Size = 256 KB
Number of Blocks = 11719933952
VD has Emulated PD = Yes
Span Depth = 1
Number of Drives Per Span = 1
Write Cache(initial setting) = WriteBack
Disk Cache Policy = Disabled
Encryption = None
Data Protection = None
Active Operations = None
Exposed to OS = Yes
OS Drive Name = /dev/sdo
Creation Date = 23-03-2023
Creation Time = 07:06:45 AM
Emulation type = default
Cachebypass size = Cachebypass-64k
Cachebypass Mode = Cachebypass Intelligent
Is LD Ready for OS Requests = Yes
SCSI NAA Id = 600062b20a4bea402baeb7056ba74fd2
Unmap Enabled = No
3. Check in VDI webpage