[ale] Recommendation for off-line storage?

[Jerry Yu]

actually, I took a side step here: compression as compress/gzip/bzip2/zip
the data before writing to tape. All this,assume the data is greatly
compressable. At times, I can compress 10G data to 2G or so.

Benefits can be achieved by writing pre-compressed data instead of
uncompressed data to tape, To name a few:
* reduce the size of on-line storage, delaying if not eliminating the need
to move some data near-line or off-line.
* reduce the size of backup (thus the media), expanding the option of
near-line storage of the backups.
* reduce disk/network bandwith needed to transfer data to tape & back
* reduce wear/tear on tape drive/media
* greatly speed up backup & restore process

On 5/10/06, Greg Freemyer <greg.freemyer at gmail.com> wrote:
>
> On 5/10/06, Jerry Yu <jjj863 at gmail.com> wrote:
> > For really repetitive data like traffic data for cell phone (airsage.com
> ),
> > compression should do wonder, if CPU cycles are not at premium.
>
> This class of tape drive does compression in the drive hardware, so no
> CPU cycles required.
>
> Also, the compression algorythm is defined in the LTO standard, so you
> can write data on any brand of drive and read it on any other brand of
> drive.
>
> Greg
> --
> Greg Freemyer
> The Norcross Group
> Forensics for the 21st Century
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>
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