what is meant by Synchronization rate in SRDF

[Srik1920]

Hi friends,

what is meant by Synchronization rate in the following output.Is it related to bandwidth of our SRDF link.

Device Group (DG) Name             : bos
DG's Type                          : RDF1
DG's Symmetrix ID                  : 000   (Microcode Version: 5773)
Remote Symmetrix ID                : 000(Microcode Version: 5773)
RDF (RA) Group Number              :   2 (01)

       Source (R1) View                 Target (R2) View     MODES          
--------------------------------    ------------------------ ----- ------------
             ST                  LI      ST                                   
Standard      A                   N       A                                  
Logical       T  R1 Inv   R2 Inv  K       T  R1 Inv   R2 Inv       RDF Pair   
Device  Dev   E  Tracks   Tracks  S Dev   E  Tracks   Tracks MDAE  STATE      
-------------------------------- -- ------------------------ ----- ------------

DEV007  05B5 RW       0      135 RW 05AB WD       0        0 C.D.  SyncInProg 
DEV008  05F3 RW       0       11 RW 05D3 WD       0        0 C.D.  SyncInProg 
DEV009  0634 RW       0       67 RW 05DC WD       0        0 C.D.  SyncInProg 
DEV010  0645 RW       0        1 RW 05ED WD       0        0 C.D.  SyncInProg 

Total          -------- --------           -------- --------
  Track(s)            0      214                  0        0
  MB(s)             0.0     13.4                0.0      0.0

Synchronization rate               :      0.0 MB/S
Estimated time to completion       : 08:55:35

[SreeHari_Karana]

Synchronization rate is a measure of the amount of time it would take for your data to reach from your primary Symm to your secondary Symm, it depends on the following factors:

1. Bandwidth of the SRDF Links

2. Mode of SRDF operation used

HTH

Thanks,

SreeHari

[Srik1920]

Hi Sreehari,

In my output synchronization rate it is showing 0 MB/S.How can it be 0 with very little amount of data pending to write.

And we have dedicated link of 100mbps for replication purpose.

[RobertDudley]

That is the actual send rate when the command is run; if you have almost no data to send then it will be very low, possibly to low to register.

If you run the command a few times or use the interval/count option to automatically run the command over time you will get better numbers in that field.

For instance

symdg -g name query -i 10 -c 5

query the symdg every 10 seconds for a count of 5 times

[dynamox]

symrdf

[RobertDudley]

Thanks Dynamox was wondering which way to go with that.