SYMCLI command to get the underlying Disk Groups at Thin Pool level

When you look at your pools with symcfg list -pools you see the raid protection on each pool.

When you look at the disk group summary with symdisk list -dskgrp_summary you also see the raid group of DG's

so you should find a nice correlation  between pool and DG. Should work fine for a simple configuration.

Hi Jason,

Thank You.

I want to check what types of disks are there in a VMAX pool and its total size

For example: Pool1 (SAS Capacity is 10TB, SSD is 5TB, ML-SAS 50TB)

Is there any command/option in existing "symcfg" command to list the underlying disk groups of the Thin Pool?

I tried to seach it in document, and found below command

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-

"symcfg -sid 000296800969 list -srp -v"

List all the Storage Resource Pools(SRP) in the VMAX3 in verbose format, with underlying Disk Groups and available Service Level Objectives.

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-

But it is throwing an error while execution.

[root@myHost bin]# ./symcfg -sid 000296800969 list -srp -v

'-srp': Illegal option.

Can you help me to get the correct command to list underlying Disk Groups of thin pools?

Many thanks in advance.

Cheers!

-SRP is an option for VMAX3 generation arrays, which is why is doesn't work on your 100K.

did you try the two commands I recommended. From the output of those two, what is it that is missing for you?

But isn't VMAX 100k comes under VMAX 3 generation arrays?

I tried, but command "./symdisk list -dskgrp_summary" couldn't show me the raid groups. Here is the output of both the commands-

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

[root@localhost bin]# ./symcfg list -pools

Symmetrix ID: 000296800969

                       S Y M M E T R I X   P O O L S

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

Pool         Flags  Dev              Usable       Free       Used Full Comp

Name         PTECSL Config           Tracks     Tracks     Tracks  (%)  (%)

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

DG1_FBA7_2   TSFDEI RAID-6(6+2)    90115200   29232246   60882954   67    0

DG2_FBA10K   TFFDEI RAID-6(6+2)   108138239   11046980   97091259   89    0

DG3_FBA_F    TEFDEI RAID-5(3+1)    43001280     864153   42137127   97    0

Total                            ---------- ---------- ---------- ---- ----

Tracks                            241254719   41143379  200111340   82    0

Legend:

  (P)ool Type:

    S = Snap,  R = Rdfa DSE  T = Thin

  (T)echnology:

    S = SATA, F = Fibre Channel, E = Enterprise Flash Drive, M = Mixed, - = N/A

  Dev (E)mulation:

    F = FBA, A = AS400, 8 = CKD3380, 9 = CKD3390, - = N/A

  (C)ompression:

    E = Enabled, D = Disabled, N = Enabling, S = Disabling, - = N/A

  (S)tate:

    E = Enabled, D = Disabled, B = Balancing

  Disk (L)ocation:

    I = Internal, X = External, M = Mixed, - = N/A

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

[root@localhost bin]# ./symdisk list -dskgrp_summary

Symmetrix ID: 000296800969

      Disk Group                 Disk                      Capacity

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

                            Flgs Speed  Size      Total      Free      Actual

Num  Name                Cnt LT  (RPM)  (MB)      (MB)       (MB)       (MB)

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

   1 GRP_1_2000_7_2K_6*    9 IS   7200 1906734   17160609          0   17169562

   2 GRP_2_1200_10K_6R6   17 IF  10000 1144041   19448691          0   19458907

   3 GRP_3_960_EFD_3R5     9 IE      0  909858    8188720          0    8199360

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

Total                                            44798020          0   44827829

Legend:

  Disk (L)ocation:

    I = Internal, X = External, - = N/A

  (T)echnology:

    S = SATA, F = Fibre Channel, E = Enterprise Flash Drive, - = N/A

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

Can you please take a look?

OK, so look at the output of the  first command, in the flags area you can determine the type of disk. The second flag is (disk) Technology.

First pool is S - Sata, second is F - Fibre Channel and the 3rd is E (EFD disk).

In the second command output you only have 3 disk groups and there is one disk group for each of the 3 above technologies. Again, you can tell because of the Technology Flag.

So you can see that for example,  Pool DG3_FBA_F is type E. Disk group 3 is also type E.  You can also see in the pool display, the Raid Group type for that pool / DG (R53+1).

Hi Jason,

Thanks a lot.

I was able to get the correlation between Pools and DG's. However, can you please confirm if VMAX 100k storage model comes under VMAX 3 generation arrays or not?

Here's the screenshot where I can see, 100K is VMAX3 storage model

Correct, A V3. My bad...

Hi Jason,

Thank You.

One more question on correlation between thin pools and disk groups.

"How can I correlate when there are multiple disk groups having same disk type (i.e Technology)?"

For example, let's say in my VMAX system, following 4 Pools and 4 disk groups are present

   Thin Pools   Flags(Technology)

a. Pool1          S

b. Pool2          E

c. Pool3          F

d. Pool4          E

  Disk Groups   Flags(Technology)                                            

a. DG1           S                                    

b. DG2           F                          

c. DG3           E

d. DG4           E

How to correlate which disk group belongs to Pool2 and which one belongs to Pool4 using this Technology (Disk) Flag?