This is documented in the 3584 UltraScalable Tape Library Planning and
Operator Guide, table 28.

Drives with No Compression:
LTO Ultrium Ultra2 SCSI        4
LTO Ultrium Ultra SCSI           2

Drives with 2:1 Compression:
LTO Ultrium Ultra2 SCSI        2
LTO Ultrium Ultra SCSI          1


__________
William Mansfield
Senior Consultant
Solution Technology, Inc




                    "Taylor,
                    David"               To:     ADSM-L AT VM.MARIST DOT EDU
                    <DTaylor@WBMI.       cc:
                    COM>                 Subject:     SCSI Channel to LTO drive 
rule of thumb
                    Sent by:
                    "ADSM: Dist
                    Stor Manager"
                    <ADSM-L AT VM DOT MAR
                    IST.EDU>


                    12/20/2001
                    09:20 AM
                    Please respond
                    to "ADSM: Dist
                    Stor Manager"






Hi *,

Can anyone share with me, a good rule-of-thumb for the maximum number of
LTO
drives that should be attached to a single Ultra-II SCSI bus?   Using the
theoretical max transfer rates of 15 MB/s for the drives and 80 MB/s for
the
SCSI, I shoould be able to put 5 drives on one bus and still have room to
spare (theoretically).    What is the generally accepted maximum number, in
the real world?

TIA

David Taylor



**********************************************************************
This email and any files transmitted with it are confidential and
intended solely for the use of the individual or entity to whom they
are addressed. If you have received this email in error please notify
the system manager.

This footnote also confirms that this email message has been swept by
MIMEsweeper for the presence of computer viruses.

www.mimesweeper.com
**********************************************************************