Re: New library and sharing
2000-03-02 21:29:41
Sounds like your on your way Clint!
Clint Placette <Clint.Placette AT FDC-INVEST DOT COM> on 03/02/2000 03:06:29 PM
Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
cc: (bcc: Angelo DeAngelis/Tivoli Systems)
Subject: Re: New library and sharing
Here's my two cents. I have 4 9840 (SCSI) on separate two SCSI buses in a 9740
Library. I have not had a problem with this configuration. These drives are
fast. If I had a choice I would go with the FC 9840 drives. I have a couple of
point to point SANs and I plan on building a switch fabric SAN in as soon as I
can get it approved. The advantage the FC 9840s have is you can connect
directly to a SAN environment. With the SCSI devices you will need a bridge
(latency lost). But the main reason is speed at minimum you will get close to
100Mb transfer rate on a SAN. You will never come close of getting that on a
SCSI bus even if it was connect to a SAN. And LANless backups will knock you
backup/restore window down. Since haven't seen the specs. on the FC 9840s I
would think the bottle neck would be on the transfer rate at the tape level
(just a guess)
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