And the drive type, at least with LTO or LTO-2, it has been awhile, IBM 
achieves the highest rate of compression over all other manufacturers (HP, 
Seagate, etc).  There was a PDF showing compression rates between all of 
them, IBM = #1.

On Wed, 25 Mar 2009, Marianne Van Den Berg wrote:

> It all depends on compressibility of data.
>
> -----Original Message-----
> From: Lakshmi <netbackup-forum AT backupcentral DOT com>
> Sent: 25 March 2009 18:07
> To: VERITAS-BU AT MAILMAN.ENG.AUBURN DOT EDU <VERITAS-BU AT 
> MAILMAN.ENG.AUBURN DOT EDU>
> Subject: [Veritas-bu]  Reg: LTO3
>
>
> Hi All,
>
> Im facing a similar issue. We have LTO2 tapes which has native capacity of 
> 200 GB and compressed capacity of 400 GB.
> Did the following tests to check which compression can help in our 
> environment.
>
> Actual data size 250 GB
> With software compression enabled, data written on tape is 99 GB
> With hardware compression enabled , data written on tape is 250 GB
>
> So, should i conclude that h/w compression is not useful or is there 
> something wrong with the drive.
>
> Regards,
> Backupadmin
>
> +----------------------------------------------------------------------
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> |Forward SPAM to abuse AT backupcentral DOT com.
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>
>
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