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May 30th, 2014 08:00
Are the new compressasm options (gzip/bzip2) supported on Windows?
I just finished setting up our new NetWorker 8.1 server, and wanted to try out the new gzip/bzip2 compression options for a couple of remote sites. Server and clients are all NW 8.1.1.5 on Windows servers. It seems like every file that it reads throws the following error:
"D:\Scheduled Backups 88573:save: compression mode gzip not supported on this operating platform, falling to default compression default"
I can't find any reference to that message on the internet, and I don't see anything in the EMC docs related to where it is supported, but I know gzip and bzip2 are more widely used on *nix systems.
I had never really messed around with the compression directives, in any case, so the compression that is actually happening is better than before. But still, there's that tiny annoyance that it could be better, possibly.
Am I missing something? Did I install something incorrectly?
ble1
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May 30th, 2014 09:00
I think it suggests that on OS you run this it is not supported. uasm manual suggests they require zlib (gzip) and libbzip2 (bzip2) libraries which are not there by default on Windows. Looking at bzip2 : Downloads I see that they provide tarball source and no binaries so that means EMC would need to compile it and support it in case of Windows which I guess they didn't do. So I guess Windows is not using it. Similary zlib Home Site you can see there are Windows versions of it for different flavors, but I do not see recent versions so I do not expect EMC to do this on its own.
epurcell
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May 30th, 2014 11:00
Yeah, it appears that you are correct. From what I can tell, uasm.exe is not linked in any way to the appropriate dlls.
That's really disappointing, as all of our servers are Windows, and the documentation doesn't mention any limitations on those compressasm directives. Thanks for your research and input.