5486ExtStor.fm Draft Document for Review October 18, 2004
416 IBM Eserver i5 and iSeries System Handbook
The Model 330 provides up to 30 GB (60
GB with 2:1 compression) of data storage
per cartridge and a sustained data transfer
rate of 4 MB per second (8 MB per second
with 2:1 compression). It has two
SCSI-wide input and output connectors. It
uses the SLR60 30 GB format and is
designed to be backward read and write
compatible with SLR100, MLR3, and
MLR1 for all members of the quarter-inch
cartridge (QIC) family of products. The
Model 330 is also designed to be read-only compatible with SLR5 and DC9250
QIC tape formats.
The 7207 Model 330 tape drive is an enhancement to the IBM 7207 Model 122
tape drive. It can be used to replace other tape technologies (such as Mammoth
and DLT tape drives) that attach externally to the iSeries families of workstations
and servers. It offers flexible read and write compatibility with SLR, MLR, and
QIC tape formats for data exchange and software distribution.
For additional information about the 7207-330 and other 7207 products, see the
following Web site:
http://www-1.ibm.com/servers/storage/tape/7207/index.html
IBM 7208 Model 345 60 GB External 8mm Tape Drive
The 7208 Model 345 is a stand-alone SCSI 8mm streaming tape
device with the capacity of a 60 GB per cartridge. It uses the IBM
Mammoth-2 AME media data cartridge with SmartClean
technology. The Model 345 also provides backward read
compatibility with previous 20.0 GB 8mm AME tape cartridges.
The 7208 Model 345 can provide a media
capacity of up to 150 GB of data storage
per cartridge using the ALDC algorithm for
compression. It has a sustained data rate
of 12 M per second (20 M per second with
a 2.5:1 compression ratio). This gives
three times the capacity and four times the
date rate of the 7208 Model 342.
The 7208 Model 345 is an excellent migration and interchange path from other
8mm tape drives and is a cost-effective solution for save-and-restore and
archiving functions.
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