RISC/6000 NETWARE SCENARIO QUESTIONS
ITEM: RTA000027276
QUESTION:
We run SAS on large data sets, presently on a Netware v3.11
network and are evaluating the RISC/6000 as a SAS Station/Server.
Ideally the SAS programmers would have HFT's attached to the
5XX or XStations attached to the 5XX. We have several questions
about how the 6000 will interact with the Novell network.
Q1: Can the RS\6000 run Netware & User Apps concurrently?
Q2: Can the 6000 act as a secondary server allowing the other Novell
workstations to access the output from the SAS routines?
Q3: What changes would the USER see if the current Netware Host was
replaced by the 6000?
Q4: Would any kind of translation or copying be necessary to make the
SAS output files (ASCII) accessible to the network nodes?
Q5: How large a 5XX should we propose to run 2 SAS sessions and a
Netware network w/ 20 PS/2 ?
Q6: Should the Xstation/220(?)'s be attached on the same TR as the
20 PS/2's or would a second "private" network be more appropriate?
Q7: Is there any functional difference between Novell's Duplex and
AIX's Mirroring?
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A: 1) Yes, NetWare for AIX/6000 will allow the RISC to run NetWare
and AIX user applications concurrently.
2) Yes, the RISC System/6000 with Netware for AIX can be a Netware
Server, where data for an AIX Application can be accessed by Netware
clients. This really depends on the Application. There are 2 ways
that AIX Application data can be accessed by the Netware clients:
1. Use the hybrid user feature of Netware for AIX - When a netware
user is configured as a hybrid user, when he creates a file, the
AIX ownership on the files belong to the AIX user that is mapped
to the Netware user. The AIX Application can provide data to
Netware users by having the ownership of the files the same as
the AIX user (hybrid), in the defined Netware volume. Netware
clients cannot access any data located outside of a defined
Netware volume.
2. The second alternative is to have the ownership of the files
created by the application, set to "netware". By default
(except for the hybrid users) all files created by netware users
will be owned by the AIX user netware. Again, these files will
need to be placed in the defined netware volume.
3) The changes seen by the clients will depend on the NLMs you're
currently running on the NetWare server. NLMs don't exist on NetWare
for AIX. However, some of the same functions are implemented in
daemons and in AIX itself. Please note that some of the functions
provided by the NLMs under native NetWare may not be available with
NetWare for AIX.
4) If the files are simple asci files, not much translation will
be needed. You'll just have to write something like a 'sed' script
to add the Carriage Return and End Of File characters in the right
places.
5) You should have at least 48MB of RAM on the 5XX (although I
would suggest 64MB). For disk sizing requirements, all of the
products available from IBM for AIX V3.2 are listed in ASKQ item
BCKRL. This item details how much disk space each product requires,
so you can plan it out before going back to your customer.
It is recommended to dedicate 16 MB of memory to Netware for AIX.
The remaining memory should be configured based on the requirements
for the SAS Application. If this system is also going to be a
Diskless and X-station server, I would recommend at LEAST 64 MB of
RAM, 96 MB or even 128 MB would be better, on a Model 550 or 560.
These are only recommendations. It is usually recommended to have
a dedicated Server for Diskless workstations, with typically
no more than 10-12 diskless workstations per server.
6) The Xstations can be on the same network as the PS/2s. The
RISC can handle the NetWare and TCP/IP traffic on the same network.
This will depend on the amount of traffic and number of Xstations
and Model 220's that will be there. It is possible to have them
share the same network. if it is a 16 MB ring, then there is more
bandwidth available. Your best response would have 2 separate
networks. Diskless systems and X-stations create a good amount
of network traffic.
7) Duplexing on Native Netware servers, allows disks to be duplicated
across 2 different disk adapters. This can be effectively done in
AIX with mirroring. Duplexing on Native servers are at a disk level,
and mirroring in AIX is at a logical volume level. In AIX, you would
mirror 1 logical volume to another disk(s) on a second SCSI string.
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This item was created from library item Q609832 BGCQR
Additional search words:
BGCQR COMMUNICATIO DDP DISTRIBUTE IX NETWARE OCT92 OZNEW QUESTION
RISC RISCSYSTEM SCENARIO SOFTWARE 6000
WWQA: ITEM: RTA000027276 ITEM: RTA000027276
Dated: 11/1996 Category: RISCOC
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