[CentOS] raid 10 not in consistent state?

Fri Feb 3 20:01:52 UTC 2017
lejeczek <peljasz at yahoo.co.uk>

hi everyone
I've just configured a simple raid10 on a Dell system, but 
one thing is puzzling to me.
I'm seeing this below and I wonder why? There: Consist = No
...
/c0/v1 :
======

---------------------------------------------------------------
DG/VD TYPE   State Access Consist Cache Cac sCC      Size Name
---------------------------------------------------------------
3/1   RAID10 Optl  RW     No      RWBC  R   OFF 18.188 TB
---------------------------------------------------------------

Cac=CacheCade|Rec=Recovery|OfLn=OffLine|Pdgd=Partially 
Degraded|dgrd=Degraded
Optl=Optimal|RO=Read Only|RW=Read 
Write|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 1 :
============

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

EID:Slt DID State DG     Size Intf Med SED PI SeSz Model Sp
----------------------------------------------------------------------- 

50:0     76 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:1     75 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:2     57 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:3    181 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:4     33 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:5    179 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:6     37 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:7     45 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:8     36 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:9     28 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:10    46 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:11    31 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:12    26 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:13    43 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:14    27 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:15    29 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:17    53 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:18    55 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:19    89 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS U
50:20    54 Onln   3 1.818 TB SAS  HDD N   N  512B 
ST32000444SS 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


VD1 Properties :
==============
Strip Size = 64 KB
Number of Blocks = 39059456000
Span Depth = 2
Number of Drives Per Span = 10
Write Cache(initial setting) = WriteBack
Disk Cache Policy = Enabled
Encryption = None
Data Protection = None
Active Operations = Background Initialization (0%)
Exposed to OS = Yes
Creation Date = 03-02-2017
Creation Time = 04:14:41 PM
Emulation type = None

#end
Would you know if this is normal?
I also cannot start consistency check:

$ perccli /c0/v1 start cc force
Controller = 0
Status = Failure
Description = None

Detailed Status :
===============

------------------------------------------------
VD Operation Status ErrCd ErrMsg
------------------------------------------------
  1 CC        Failed  1001 Start CC not possible
------------------------------------------------

to me it's weird, but then, it's my fist raid10 on Dell 
hardware.
many thanks,
L.