Clarification on Meta Head LUN Capacity in Symmetrix

[naren23]

In Symmetrix we have raidtype called raid 5(7+1) where it requires 8 symdevices. The first Symdevice out of 8 is called meta Head for other seven devices in the group.

The device(i.e Lun) capacity of the Meta head Lun shows like aggregation of all eight devices in the group and not the capacity of meta head lun.

For example , we have following eight sym device or LUN

Symdev No capacity
01(Meta head) 233MB
02(Meta Member) 233MB
03(Meta Member) 233MB
04(Meta Member) 233MB
05(Meta Member) 233MB
06(Meta Member) 233MB
07(Meta Member) 233MB
08(Meta Member) 233MB

The capacity of 01 Meta Head Lun in CLI shows 1864MB(233*8) instead of 233MB. This is expected behaviour.
Why it shows aggeration of capacity in the Meta head LUn instead capacity of that Particular lun(i.e 233)?

Any help... Much appreciated

 

[rodgerdave]

You are seeing the addressable capacity.

The meta members are not addressable.