Diff between SB37, SE37 and SD37

neelesht · Posted: Wed Aug 23, 2006 4:16 pm

Hi All,

Could any one please let me know what is the exact difference between SB37, SE37 and SD37 abends ?

I always thought they are same but came to know recently that there is a diff between all of these.

Thanks alot.

Regards,
Neelesh

hey_its_me · New User Joined: 23 Aug 2006 Posts: 14 Location: USA

hi,

SD37 is related to primary space provided for your data set,
ie if the dataset is out of primary extended volume space provided by
you as per your jcl, it shows SD37 abend

SB37 when the dataset is out of secondary extended space, or even the the 15 secondary extended volume provided to you for each primary extended space is used up.

SE37 is related to directory block, if there is no space for an extra member in the PDS.
THE PDS NEED TO BE COMPRESSED.

Thanks and regards,

Anil Kumar K P

nhgol · New User Joined: 10 Oct 2006 Posts: 4

A D37 occurs because you ran out of your primary space allocation and didn't specify a secondary amount. A B37 occurs because you either used 16 extents for your ds or there was no more space on the volume. An extent is a contiguous amount of space on the disk. Your primary allocation can be satisfied in 1 to 5 separate chunks of storage on the disk so will take 1 to 5 extents. Each secondary allocation also can take 1 - 5 extents. It takes at least 1 even if it's contiguous to the primary space. The amount of fragmentation on the disk accounts for the differences. When people get a B37, they often try to remedy it by just upping the space allocations. Sometimes this works, sometimes it doesn't. It definitely won't work if there's a write to disk imbedded in a runaway loop in the program. E37s are because you have no room to add another member to a library. Sometimes compressing the library will fix it.

Smin · New User Joined: 11 Aug 2005 Posts: 7 Location: China

it is helpful,Thx.