Reported Tape compression

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Reported Tape compression

Veeam Logoby djmc » Fri Jun 23, 2017 4:28 pm

Hi,
We have just moved to Veeam and are using a DataDomain as our primary backup target, we are doing forward incremental with weekly synthetic full and write the latest full backup to tape at month end.
We have LTO5 drives which have hardware compression enabled, the tape copy job is set to use hardware compression if available.
Veeam tells me that my tape is 1.4TB, which is the native capacity. I would have expected this to report the compressed capacity as the previous application did.

Does Veeam only report the native tape capacity?

Thanks in advance.
DJ
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Re: Reported Tape compression

Veeam Logoby DaveWatkins » Fri Jun 23, 2017 11:29 pm

No, but Veeam compresses all it's backups as it does them with better compression that the tape drive, so the tape drive can't get it any smaller. The general recommendation is to disable hardware compression on tape drives for this reason as it just adds more overhead for no gain
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Re: Reported Tape compression

Veeam Logoby v.Eremin » Sat Jun 24, 2017 10:01 am

Does Veeam only report the native tape capacity?

Correct, some explanation can be found here. Thanks.
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Re: Reported Tape compression

Veeam Logoby djmc » Mon Jun 26, 2017 10:30 am

Hi,
Thanks all for your replies.
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Re: Reported Tape compression

Veeam Logoby v.Eremin » Mon Jun 26, 2017 10:57 am

You're welcome. Feel free to reach us, should other questions arise.
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