using striping et guarantte space for huge dataset



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using striping et guarantte space for huge dataset

Postby samb01 » Wed Dec 12, 2018 4:15 pm

Hello,

I have to fille 32 dataset with 800 000 tracks each on.
To do that, i have 32 jobs with tis allocation for each dataset :


DATACLAS=COMPRESS,                          
SPACE=(CYL,(910,400),RLSE),VOL=(,,,59),  
DCB=(RECFM=VB,LRECL=27994,BLKSIZE=27998)  
 



The dataset are SMS Managed, compressing, extended,striping with Guarantee space
So the jobs will run with five minutes lates each one :
Job1 : 19h00
Job2 : 19h05
Etc..
By doing that, each dataset will use 910*15 * 59 = 805350 TRKS
910 cyl in each volume *59
Could you tell me if i am right by doing that and i will not have B37 or E37 ?
Acutally the storage group is empty with 59 volume M27.
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Re: using striping et guarantte space for huge dataset

 

Re: using striping et guarantte space for huge dataset

Postby NicC » Wed Dec 12, 2018 7:54 pm

Why can you not check this with your storage admin? They know your setup and whether what you are doing is correct for that setup.
The problem I have is that people can explain things quickly but I can only comprehend slowly.
Regards
Nic
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Re: using striping et guarantte space for huge dataset

Postby expat » Wed Dec 12, 2018 8:59 pm

I second the suggestion by Nic

Ask the people that know, not those that guess
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Re: using striping et guarantte space for huge dataset

Postby willy jensen » Wed Dec 12, 2018 9:34 pm

By
I have to fille 32 dataset with 800 000 tracks each on
do you really mean fill all the tracks with data? In that case I would recommend not using a dataclass which invokes compress.
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