storcliでraid5からraid6にmigrateできない

ログを書いておきます

pyshical disk

root@dell /h/matsu# /opt/MegaRAID/storcli/storcli64 /c0/d0 show
Controller = 0
Status = Success
Description = Show Diskgroup Succeeded


TOPOLOGY :
========

--------------------------------------------------------------------------
DG Arr Row EID:Slot DID Type  State BT       Size PDC  PI SED DS3  FSpace
--------------------------------------------------------------------------
 0 -   -   -        -   RAID5 Optl  N  836.625 GB dsbl N  N   none N
 0 0   -   -        -   RAID5 Optl  N  836.625 GB dsbl N  N   none N
 0 0   0   252:0    6   DRIVE Onln  N  278.875 GB dsbl N  N   none -
 0 0   1   252:1    5   DRIVE Onln  N  278.875 GB dsbl N  N   none -
 0 0   2   252:2    7   DRIVE Onln  N  278.875 GB dsbl N  N   none -
 0 0   3   252:3    4   DRIVE Onln  N  278.875 GB dsbl N  N   none -
--------------------------------------------------------------------------

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

volume group

root@dell /h/matsu# /opt/MegaRAID/storcli/storcli64 /c0/v0 show
Controller = 0
Status = Success
Description = None


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

-----------------------------------------------------------
DG/VD TYPE  State Access Consist Cache sCC       Size Name
-----------------------------------------------------------
0/0   RAID5 Optl  RW     Yes     RWTC  -   836.625 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

raid5からraid6に変更したいけどできない

root@dell /h/matsu# /opt/MegaRAID/storcli/storcli64 /c0/v0 start migrate type=raid6
Controller = 0
Status = Failure
Description = None

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

---------------------------------------------
VD Operation Status ErrCd ErrMsg
---------------------------------------------
 0 MIGRATE   Failed     3 invalid arguments
---------------------------------------------

command help

root@dell /h/matsu# /opt/MegaRAID/storcli/storcli64 /c0/v0 start migrate help
     Storage Command Line Tool  Ver 1.15.05 Jan 22, 2015

     (c)Copyright 2015, AVAGO Corporation, All Rights Reserved.


NAME: Start Migration

SYNTAX: storcli /cx/vx start migrate type=raidx [option=add|remove drives=[e:]s|[e:]s-x|[e:]s-x,y] [Force]

DESCRIPTION: Starts Migration on the specified virtual drive to a specified
                raid level

OPTIONS:
raidx - Raid level to which migration needs to be done.
        where x specifies the raid level value.
option -
        add - adds the specified PD to the migrated raid level.
        remove - removes the specified PD from the migrated raid level.
Drives - Specifies the list PD's which needs to be added or removed.
Force - If specified, then Migration will start even if any drive in the DG
        is secured by FDE
CONVENTION:
/cx - specifies the controller where X is the controller index
/vx - specifies the virtualdrive where X is the vd ID

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