symclone activate command with SRDF

Question

Hi, I currently has the following scenerio - Using Symcli I perform a symclone recreate -precopy followed by a symclone activate on a set of clone devices. This works as expected and takes under a second to complete the command and exit successfully. I have another set of clone devices that are also part of a SRDF relationship. For example I have file1 that contain the list of clone devices and I have srdf-file1 that contains the list of cloned devices in file1 and the remote devices. file1                         srdf-file1 0001     0004           0004     110 0002     0005           0005     111 0003     0006           0006     112 I suspend the SRDF relationship that works as expected, I then perform a symclone recreate -precopy that works as expected. I then run symclone activate command that works as expected but takes approxiamtely 6 seconds to complete and exit. I then resume the SRDF relationship. I can see from tracing the system calls that the process that includs the SRDF relationship performs more system calls than the local clone when executing the activate command. Can anyone inform me what is occurring in the background and why the activate command takes three times longer to finish even though the SRDF relationship has been suspended? Thanks Jarrod

dynamox · Answer

are you doing 'activate -consistent' ?

dynamox · Answer

i was thinking if you were doing 'consistent' that would add a little extra time but since you were not i can only think it's because it's merging the track table to see what's needs to be copied to the target device. The more devices you have the longer it takes. I have 65 x 100G metas (17g meta members) and it takes around 4 minutes to activate.

Jarrod_Smithers · Answer

Hi, I added the consistent flag to my activate command but it did not reduce the time? What were you expecting?

Jarrod_Smithers · Answer

Hi, My commnad is - symclone -file file1 activate -sid XXXX -noprompt

Jarrod_Smithers · Answer

Hi, I have 10 200GB meta's, I need to find out what it is waiting for when a SRDF relationship is involved. Thanks

Symmetrix

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