Users Guide

Table Of Contents
is not giving maximum VD size possible as the final VD size (percentage turns out to be less than 100%). User does not see
difference in this entered VD size and final VD size after reconfiguration, if maximum possible VD size is entered by user.
Raid Level Migration
RAID Level Migration (RLM) refers to changing a virtual diskยดs RAID level. iDRAC9 provides an option to increase the VD size
using RLM. In a way, RLM allows migrating the RAID level of a virtual disk which in turn may increase the size of virtual disk.
RAID level migration is the process of converting a VD with one RAID Level to another. When you migrate a VD to a different
Raid Level, the user data on it is redistributed to the format of the new configuration.
This configuration is supported by both staged and realtime.
The below table describes possible reconfigurable VD layouts while reconfiguring (RLM) a VD with addition of disks and without
addition of disks.
Table 54. Possible VD Layout
Source VD Layout Possible target VD Layout with Disk
Add
Possible target VD Layout Without
disk addition
R0 (single disk) R1 NA
R0 R5/R6 NA
R1 R0/R5/R6 R0
R5 R0/R6 R0
R6 R0/R5 R0/R5
Permitted operations when OCE or RLM is going on
The following operations are allowed when OCE/RLM is going on:
Table 55. Permitted operations
From Controller End behind
which a VD is going
through OCE/RLM
From VD End (which is
going through OCE/RLM)
From any other Ready
State Physical Disk on the
same controller
From any other VD (which
is not going through OCE/
RLM) End on the same
controller
Reset Configuration Delete Blink Delete
Export Log Blink Unblink Blink
Set Patrol Read Mode Unblink Assign Global Hot Spare Unblink
Start Patrol Read Convert to non-RAID Disks Rename
Change Controller Properties Change Policy
Manage Physical Disk Power Slow Initialize
Convert to RAID Capable
Disks
Fast Initialize
Convert to Non-RAID Disks Replace Member Disk
Change Controller Mode
OCE and RLM Restrictions or Limitations
Following are the common limitations for OCE and RLM:
244
Managing storage devices