Hardware compression on Tape

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Hardware compression on Tape

Postby rbcomp » Tue Jan 12, 2010 6:36 am

Hi there,

I have a problem ussing BA and several Tape Backup units. Even if I enable Hardware Compression on the unit AND check the corresponding option on the BA Console the ammount of data on my backups it´s no not avail what it should be.

We use some HP DDS5 units and some Sony AIT (AIT 2 Turbo and AIT 3).

Can some one help me on this?

Rafael Bullrich
soporte@rbc.com.ar
rbcomp
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Re: Hardware compression on Tape

Postby Mike D » Sat Jan 16, 2010 1:43 am

Hello Rafael,

What is the size of the data you are trying to write to the tapes and what size are the tapes. When it comes to compression you will never get the maximum compression they say. Usually a good compression is 1:1.4 because most files on a windows system are already compressed like jpg files for example are compressed bmp files. This means the hardware compression will not be able to compress them any more.

I will be happy to look at this issue if you want to submit the diagnostics.

To send us diagnostic information please follow these steps:
1) Go to Contact Support (from the bottom-left corner of the console) ->Contact support
2) Fill out the form and ensure that the Submit system diagnostics checkbox at the bottom is ticked.
Thank You,
Mike Deaton
BackupAssist Help Desk
US Support Office: Louisville, KY
+812-206-4265
helpdesk@backupassist.com
http://www.backupassist.com
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Re: Hardware compression on Tape

Postby rbcomp » Sat Jan 16, 2010 3:00 am

I have tried to post a Diagnostics from one of our sites but I get a continous error... I will try from another one later on.

I don´t get ANY compression... We are backing up som 240 GB to a Sony AIT 2 Unit (80/204 GB not compressed/compressed capacity advertised) but we need to use 3 Tapes, with Compresion at 1:1!!.

Rafael Bullrich
soporte@rbc.com.ar
rbcomp
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Posts: 2
Joined: Tue Jan 12, 2010 5:51 am

Re: Hardware compression on Tape

Postby Mike D » Wed Jan 20, 2010 12:59 am

If you go to the c:\program files\BackupAssist v5 folder you should see a file called BackupAssistDiagnostics.zip. This is the file that is created when you
try to submit diagnostics. If that file is there you can email it to us at support@backupassist.com. If it is to large to email you can use sendspace.com and send it to the same address.
Thank You,
Mike Deaton
BackupAssist Help Desk
US Support Office: Louisville, KY
+812-206-4265
helpdesk@backupassist.com
http://www.backupassist.com
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Mike D
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Posts: 195
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