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Eric Jacklin Absent Member.
Absent Member.
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Backup Compression

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Hi team

We are using below mention Hardware/software for backup so how should i determine the
compression ?
Hardware : Server :PA-RISC
Backup driver : Ultrim2
Media : 400 GB

Backup software : HP Data protector 5.5

How many type of Backup compression? Hardware/software ?

How to check the compression which in used by data protector backup software ?

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Lorenzo Facello Absent Member.
Absent Member.

Re: Backup Compression

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Jit,
take a look of this...

form DP docs.
- Concepts.

"...Software Compression
Software compression is done by the client CPU when reading data from
a disk. This reduces the data that is sent over the network, but it
requires significant CPU resources from the client.
By default, software compression is disabled. Use software compression
only for backups of many machines over a slow network, where data can
be compressed before sending it over the network. If software
compression is used, hardware compression should be disabled since
trying to compress data twice actually expands the data."

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3 Replies
Kenan Erdey Absent Member.
Absent Member.

Re: Backup Compression

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Hi,

By default dp uses hardware compression. you can see it from device&media window when you right click to device and open properties.

if you want to do software compression you can go to backup window. in a backup you defined go to backup object summary. Right click to backup object in properties window you can select software compression.

But why to use software compression ? Perhaps in a slow network environment.

i looked at your profile. IMHO you've been late for assigning points to members living here.

Kenan.
Computers have lots of memory but no imagination
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Lorenzo Facello Absent Member.
Absent Member.

Re: Backup Compression

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Jit,
take a look of this...

form DP docs.
- Concepts.

"...Software Compression
Software compression is done by the client CPU when reading data from
a disk. This reduces the data that is sent over the network, but it
requires significant CPU resources from the client.
By default, software compression is disabled. Use software compression
only for backups of many machines over a slow network, where data can
be compressed before sending it over the network. If software
compression is used, hardware compression should be disabled since
trying to compress data twice actually expands the data."

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Eric Jacklin Absent Member.
Absent Member.

Re: Backup Compression

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Thanks for your conribution toward to my question.
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