ADSM-L

Re: [ADSM-L] "Compressed data grew" retries?

2016-06-30 12:09:52
Subject: Re: [ADSM-L] "Compressed data grew" retries?
From: Paul Zarnowski <psz1 AT CORNELL DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Thu, 30 Jun 2016 12:06:01 -0400
At 09:31 AM 6/30/2016, Tom Alverson wrote:
>I will
>try the compressalways yes setting but hopefully that won't override the
>exclusions I have set up for common compressed files.

No, compressalways will not override exclude.compress.  The option simply says 
not to retry if compression grows the size.

The legacy LZW compression can grow files that are already in a compressed 
format.  The newer LZ4 compression should not grow an already compressed file.  
In that respect, it's similar to the compression that LTO tape drives can do.

..Paul



--
Paul Zarnowski                            Ph: 607-255-4757
Assistant Director for Storage Services   Fx: 607-255-8521
IT at Cornell / Infrastructure            Em: psz1 AT cornell DOT edu
719 Rhodes Hall, Ithaca, NY 14853-3801

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