ADSM-L

AIX DLT7000 block size?

2015-10-04 17:58:04
Subject: AIX DLT7000 block size?
From: Pat Wilson [SMTP:paw AT NORTHSTAR.DARTMOUTH DOT EDU]
To: ADSM-L AT VM.MARIST DOT EDU
I've just put online my new 7337 DLT library (with 2 DLT 7000s).  AIX sees
the drives (as does ADSM), and lists the block size as 1024.   This seems
sort of small to me (the manual for the 7337 indicates that a larger block
size will improve performance) - is there a "magic" block size for DLT
7000s?  If not, how can I determine what number I should be using?

On a related note, when I did
        label libvolume autodltlib search=yes labelsource=barcode
checkin=scratch

to get the new tapes checked in, the library only used one drive at a time
(though it alternated between the drives).  Is this normal?  I'd've thought
a more efficient use would be to use both drives simultaneously...

Thanks.

Pat Wilson
paw AT dartmouth DOT edu
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