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How to Release disk space after a cube processing failure Expand / Collapse
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Posted Wednesday, May 1, 2013 8:00 AM
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Hi,

I have a SQLServer Data base stored on a drive that has abot 10 GB Free space. How ever the cube processing failed and now I need to recover the space taken by cube processing. How should I do this. I cannot reprocess the cubes as I do not have enough space.
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Posted Friday, May 3, 2013 9:03 AM
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Step1:right click the cube and select Process a new process window will open
Step2: select "Unprocess" under "Processing options" and click Ok.

the above steps will uprocess the cube as a result it should recover all the space used for the cube.

you can also try "Process Structure" instead of "Unprocess". This will give you a empty browsable cube.
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Posted Tuesday, May 14, 2013 5:29 PM
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I am seeing the same disk space issue as described in original post.

Each partition is about 8GB, total 14 partitions. each partition about 50M rows.

The cube was processed before so it exists with about 110GB total used space.

Free space about 200GB.

When re-processing the same cube, the free space seems to slowly disappear, for example only after processing 2 partitions, the free space went from 200GB to 40GB. This is while the total used space in this cube directory is 120GB. The used space makes sense - 110GB + 8G for 2nd copy of partition that's being processed.

The free space gone to neverland is what doesn't make sense!

I am processing partitions from BIDS (highlighted all partitions). Processing each partition separately, each with its own transaction.

I've seen the same type of Disk space stealing by SSAS server when for example deleting a cube. Somehow when I delete the cube, it does not show that disk space is free, while the files are gone!, - that is until you restart SSAS server.

can anyone shed a light on this?

(win 2003 ent, sql 2005 ent sp2 fin, 32 bit, 16gb ram, 4 cpu)

Does SSAS actually use the Disk for temporary cache of data during aggregation?

can anyone from MS SSAS team clarify?

if that's true, which "directory" is it, and can I change it to be a different disk? I so happen to have more free space available on a different drive (not OLAP Data drive).

any ideas?

I guess this should be filed as a bug. what should I call this bug? "space stealing?"


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