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FYI
(Note: The origin of this information may be internal or external to Novell.
Novell makes every effort within its means to verify this information.
However, the information provided in this document is FOR YOUR INFORMATION
only. Novell makes no explicit or implied claims to the validity of this
information.)
TITLE: Server Optimization and Functions
DOCUMENT ID#: FYI.P.6037
DATE: 01OCT92
PRODUCT: NetWare Lite
PRODUCT VERSION: All versions
SUPERSEDES: NA
LITE FAX DOC #: 2779
SYMPTOM
NA
ISSUE/PROBLEM
Server Optimization and Functions
Disk Caches
NetWare Lite does not ship with a disk cache. Novell has tested with
several (read many) commercially available disk cache products and found
them to be quite inexpensive while adding significant performance to the
NetWare Lite server software. For higher performance of the NetWare Lite
server, Novell suggests that you acquire a disk cache and install it on
the server machines. Some cache tuning may be necessary for best
results.
Server Configuration
For best performance, Novell suggests that you increase receive buffer
and read buffer sizes to what is supported by the network topology (such
as Ethernet, Token-Ring) up to a maximum of 4096 bytes using a multiple
of 512 bytes. In fact, if 4096 is selected then the server will truncate
the value to the maximum value supported by the topology. This tuning
allows clients to request more data from (or send more data to) the
server with each read (write) operation. When more data is sent, fewer
requests are necessary and better performance is obtained. This
enhancement does increase the size of server when it is resident in DOS.
Depending on the load being placed on the server, it may be beneficial to
increase the number of receive buffers and read buffers. In general,
Novell found that 8 to 12 receive buffers are enough for even the most
heavily loaded server. Similarly, 5 to 10 read buffers are sufficient.
These values do not need to be more than one or two above the number of
simultaneous connections (up to the suggested maximums of 8 to 12 receive
buffers and 5 to 10 read buffers).
Mapping verses SUBSTing
If your machine is a server and you would like to map to the server, it
is recommended that you SUBST to the server instead of mapping to server.
SUBST is a DOS command that lets you assign a drive letter to a directory
on another drive.
Example:
If you usually map to the server with the G: drive to the Network
Directory APPS and APPS is actually the C:\APPS directory, the NET
MAP G: APPS command could be replaced by SUBST G: C:\APPS command.
To remove this substitution, you would type SUBST G: /D.
Using this substitution rather than a mapping will result in better
performance for operations done on the G: drive.
Mapping Local Drive
You can map drives that are local (A: or B:) and use them temporarily as
network drives. However, as a general practice, it is not recommended.
If you run out of drive letters to map, increase LASTDRIVE in your
CONFIG.SYS.
Use of ASSIGN
Do not use ASSIGN with NetWare Lite. The DOS reference manual (3.3)
recommends that you use SUBST instead of ASSIGN and explains how to do
so.
SOLUTION
NA