Space Disparity on Primera c670

[ILYPAT]

Hi Team,

We have a new primera initialised. Health wise all is green

We have two tier SSD  and FC.

In SSD tier, we 24 disk in Raid 6+2 of size 7.68TB - hence the usabel space we get is 126TB 

In FC tier we 144 disk in Raid 6+2 of size 2.4TB - hence the usable space we get is 243 TB

showspace -cpg *
----------------------(MiB)----------------------
CPG ---------EstFree---------- -----------Efficiency------------
Name RawFree LDFree OPFree Base Snp Free Total Compact Dedup Compress DataReduce Overprov
FC_r6 303030272 227272704 - 20480 2048 51200 73728 3.01 - - - 0.00
SSD_r6 106496000 79872000 - 0 0 0 0 - - - - 0.00
SSD_RAID6 106496000 79872000 - 0 0 0 0 - - - - 0.00
FC_RAID6 303030272 227272704 - 0 0 0 0 - - - - 0.00

In the SSD tier cpg from the above output we see only 73 TB instead of 126TB (as highlighted above in red.) - hence we need to know where the additional space is utilised.

we have not allocated any space form SSD-r6 cpg.

however when we run showsys -d commad we see allocated capacity as 34TB

% showsys -d

---------------General---------------

System Name         :      XXXXXXXX

System Model        :   HPE_3PAR C670

Serial Number       :      XXXXXXXXXXX

System ID           :         0x29EAC

Number of Nodes     :               4

Master Node         :               0

Nodes Online        :         0,1,2,3

Nodes in Cluster    :         0,1,2,3

Cluster LED         :           Green

Chunklet Size (MiB) :            1024

Minimum PW length   :               8

-----System Capacity (MiB)------

Total Capacity     :   505184256

Allocated Capacity :    33118208

Free Capacity      :   472065024

Failed Capacity    :        1024

Can someone assist in figuring out where the SSD tier space is used.

Thanks.

[sbhat09]

Hello @ILYPAT,

Please check if you are using flashcache. The command is 'showflashcache'.

Regards,
Srinivas Bhat

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[ILYPAT]

Hello Srinivas,

We have not configure flash cache on the Primera.

[sbhat09]

Ok. Can you please share the complete command output for 'showpdch -c'?

(Please use the 'courier new' for the command output so that the logs alignment will be proper.)

Regards,
Srinivas Bhat

If you feel this was helpful please click the KUDOS! thumb below!
Note: All of my comments are my own and are not any official representation of HPE.