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Upgrading to Dell/EMC CX4 Series Storage Systems

Applied Technology 13

Appendix A: Example CX4 Conversion Readiness Check

The report below is an example of what CAP2 includes in the CX4 conversion readiness check report. In this

example, CAP2 has identified one LUN that must be relocated from the first five drives. CAP2 identifies each LUN

as either a user LUN, metaLUN, write intent log (WIL), clone private LUN (CPL), or reserved LUN (RL). These are

identified in the usage column to the far right of the migration table. MetaLUNs are shown in a separate table. User

LUNs and metaLUNs may be relocated using virtual LUN technology, while WIL, CPL, and RL may require other

procedures as described in ―Special Considerations for Replication Software.‖ CAP2 also identifies free space to

which these LUNs could potentially be migrated.

For Dell employees, see the Release 28 Conversion Training (IMPACT) module for more examples of CRC checks

with special cases.

=======================================================================

Conversion Lun Check report: FAIL

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

Summary of Luns/Metaluns which need to be migrated:

Count Lun Type/Description Capacity (MB)

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

0 User Metalun 0

0 User Lun 0

0 Write Intent Log (WIL) 0

1 Clone Private Lun (CPL) 128

0 Reserved Lun (RL) 0

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

1(total) 128(total)

Summary of free disk space:

Disk Count Description Disk Size(MB)

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

22 Unbound Disk 2874236

0 Empty RAID Group 0

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

22(total) 2874236(total)

Summary of free available RAID group capacity:

Description Capacity (MB)

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

Inactive Hot Spare 273776

System RAID groups 137784

Non-System RAID groups 2030719

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

2442279(total)

Migration Table

Lun(s) which need to be migrated:

RAID RAID Count Size on

Storage Group Lun# Lun Name Capacity (MB) Type Group of Disks Disk(MB) Usage

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

N/A 2046 LUN 2046 128 RAID5 0 5 160 SP-A CPL

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

128(total) 5(total) 160(total)

Metalun(s) which need to be migrated:

None

Free Space Table

Available Disk(s):

Disk RAID RAID Disk

Bus Enc Slot Drive# Size(MB) State Group ID Type Type

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

1 2 ... 8 9 10 11 12 13 14 15 16

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