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3 Posts
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1227
May 26th, 2014 18:00
Need to delete data in a unused pool to recover capacity
Hi,
I have a cluster which has reached its capacity limit and I need to delete data from an old pool which is not used anymore. We have migrated the data to aanother Centera and require the capacity.
I have JCAScript but I would need CASDEL to delete a bulk amount of C-Clips.
Is CASDEL available for DL..?
Any help in this would be greatly appreciated.
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mckeown_paul
409 Posts
0
May 27th, 2014 00:00
I havent heard of CASDEL but C-DEL.EXE used to available for windows, however support for it was dropped some years ago.
The supported tool for doing this kind of activity (and others) is jcasscript.jar which is supported on all operating system platforms and this is downloadable from the EMC Developer Network Centera Community.
mfh2
208 Posts
0
May 27th, 2014 05:00
As Paul points out, if you have a clip list it is simple to generate a script file for JCas with a connect command at the top and then a large number of 'clipDel ' lines. You can then run this with simple input redirection such as 'java -jar jcasscript.jar < del_pool_data.jcas'. This will run just about as fast as c-del.exe.
Note that deletes on Centera are generally slow, as each delete operation also creates two copies of a reflection for the deleted clip; it can take days to delete a million clips/blobs. Also, the space freed up from the unreferenced blobs will not become available until after the next GC run (up to 14 days under the default schedule).
Best of luck with this,
Mike Horgan
Michael_Kellar
3 Posts
0
May 27th, 2014 14:00
Mike,
Thanks for the help here,
I have used JCAS to generate my clip list, I was unaware I could work the command into a file.
Will give it a shot, thanks..!!