HP3000-L Archives

January 1996, Week 3

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Subject:
Re: Performance degradation w/HA drives
From:
[log in to unmask][log in to unmask], 14 Jan 1996 16:36:56 EST710_- In article <[log in to unmask]>,
M Gopalakrishnan <[log in to unmask]> wrote:

> On MPE/iX, the PRINT command prints truncated records when an
> UNNUMbered file contains the trailing eight characters as digits.
> The :PRINT command is not displaying the trailing eight characters
> as it assumes those digits are line numbers.
>
> Based on the customer requests, the new option RAW for the PRINT command
> will be added. With this new option, the contents of the file will be
> displayed as it is, without assuming the trailing 8 characters as
> line numbers. Also RAW causes non-printable characters to appear [...]45_14Jan199616:36:[log in to unmask]
Reply To:
[log in to unmask]
Date:
Wed, 17 Jan 1996 11:21:56 PST
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Pat - These arrays are marvelous devices - we've increased our uptime
drastically by using these and implementing user volume sets.  However,
we are now I/O-bound because of them.  HP recommends no more than five
of these devices per HP-FL channel ... I'd personally bet no more than
two on a large system!!  We're probably going to need some consulting
help to find some solutions to this problem ourselves [no fax/e-mail
blizzard, please, all you consulting types out there!!  ;-) ]
 
 
=======================================
Lee Gunter          [log in to unmask]
HMO Oregon
=======================================
 
 
______________________________ Reply Separator _________________________________
Subject: Performance degradation w/HA drives
Author:  Pat Vaske <[log in to unmask]> at ~INTERNET
Date:    1/17/96 8:57 AM
 
 
We recently installed a 967 with HA (C2254HA &c2252HA) drives. It also has
10MB of SCSI running on it. The 967 of itself runs much faster than the 947
we replaced but once we introduced the HA arrays the systems seems to come
to its knees. Glance show that the HA are responsible for the degradation.
 
Does anyone know of a "tweek" in the operating system that will resolve this?
 
Is it possible that we need 2 FL channels iinstead of the one we have installed?
 
This only represents 8 1.3GB drives!!?? but....
 
Any help would be greatly appreciated.
 
PLV

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