News Group Posts

tape hardware compression atapi seagate

From: "D. Thomas Podnar" <tom@microlite.com>
Subject: Re: Seagate Travan tape compression
Date: Fri, 16 Mar 2001 14:30:06 GMT

: The drivers for the Seagate Travan tape drive are supplied by SCO as part
: of the system installation. I'm able to use the tape drive normally with no
: problem. However, I'm unable to do a "tape getcomp" or "tape setcomp" to
: review or set data compression methods.
: 
: I have one system of 15 where the system exceeds 5 gig of space, and won't
: fit on an uncompressed 4-gig tape. If I could turn on compression, that
: system would easily fit on the tape.
: 
: Does anyone know how to turn on the compression for a Travan tape drive
: (ATAPI if that matters) under SCO 5.0.5a?

   ^^^^^ it matters greatly.
: 
: Thanks for any pointers.
: 
: Balanone
:    PP

I'm afraid you are under a misconception.

There is currently NO such thing as an ATAPI drive with built-in
hardware compression.

Seagate offers the following Travan models...


-- 4/8GB --                             -- 10/20GB --

      /  Hornet 8                             /  Hornet 20
ATAPI                                   ATAPI 
      \  TapeStor Travan 8                    \  TapeStor Travan 20

       / Hornet 8                              / Hornet 20
      /  Hornet NS8                           /  Hornet NS20
SCSI                                    SCSI
      \  TapeStor Travan NS8                  \  TapeStor Travan NS20
       \ TapeStor Travan 8                     \ TapeStor Travan 20


Of those models, only the "NS" series has hardware compression, and
those models are only available in the SCSI interface.

Seagate, like other vendors, ALWAYS doubles the raw capacity of the
tape drive when reporting it. They ASSUME in the case of tape drives
that don't do hardware compression, that you'll be using backup software
that does software compression.



Tom
---
  D. Thomas Podnar - President  tom@microlite.com
  Microlite Corporation         724-375-6711 Voice
  2315 Mill Street              724-375-6908 Fax
  Aliquippa PA 15001-2228       888-257-3343 Toll Free Sales
+----------------------------------------------------------+
|             The Crash Recovery Company(sm)               |
+----------------------------------------------------------+
|Makers of                                                 |
| BackupEDGE  -  Data Archiving Software For Unix & Linux  |
| RecoverEDGE -  Network-Enabled Smart Disaster Recovery   |
|                for Linux, UnixWare 7.1, OpenServer 5.0.x.|
|http://www.microlite.com           ftp://ftp.microlite.com|
+----------------------------------------------------------+

Comments?

Jump to Comments

Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them. I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. I also may own stock in companies mentioned here. If you have any question, please do feel free to contact me.

Specific links that take you to pages that allow you to purchase the item I reviewed are very likely to pay me a commission. Many of the books I review were given to me by the publishers specifically for the purpose of writing a review. These gifts and referral fees do not affect my opinions; I often give bad reviews anyway.

We use Google third-party advertising companies to serve ads when you visit our website. These companies may use information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you. If you would like more information about this practice and to know your choices about not having this information used by these companies, click here.