Hi,   I'm not sure if I've understood your correctly... If you want to find where is your ldev is spread across in tiers in fast-vp, then this syntax would help you to tell how many tracks are in which tier based on your FAST-VP policy against this ldev storage group.  #symfast -sid show -association -sg  -v   Example Output:     Policy Name          : APP_Cost_Reduction Priority             : 2 RDF Coordination     : Disabled  Tiers(2)     {     --------------------------------------------------------------------                                                    L                                             Max SG O       Target     Tier Name                        Type  Percent C Tech  Protection     -------------------------------- ---- -------- - ----- -------------     Tier1_FC_R1                      VP        100 FC    RAID-1     Tier2_SATA_R6                    VP         50 SATA  RAID-6(6+2)     }  Legend:   Tier Type     :  DP = Disk Group Provisioning, VP = Virtual Pools
Hello Experts,  is there way to run a report or find out which tier blocks are read from a ldev for fast policy which has SATA,FC,EFD tiers. If there is ldev part of the fast policy which has certain % of sata, FC and EFD and when I run the read response time report, I am curious to know where the data being accessed from when the latency is high.  Regards, KD
how to find read blocks from ldev when fast is enabled