vicker313 tech blog

December 1, 2009

Tape Drive Hardware Compression

Filed under: Server — Tags: , , — vicker313 @ 8:00 am

Tape drive normally come with hardware compression feature. For example an LTO3 tape can store 400GB data with the hardware compression feature disabled, and able to store 800GB data with hardware compression feature enabled. Hardware compression is done at the tape drive, instead of using TAR or ZIP command.

By default, the hardware compression is enabled. To disable it, you can issue command below:

mt -f /dev/st0 compress 0

To enable back the compression feature:

mt -f /dev/st0 compress 1

To disable the default option of hardware compression:

mt -f /dev/st0 defcompression -1

To enable back the default option:

mt -f /dev/st0 defcompression 1

Transfer rate is much higher with hardware compression enabled.


Leave a Comment »

No comments yet.

RSS feed for comments on this post. TrackBack URI

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

Create a free website or blog at

%d bloggers like this: