A highly scalable network emulation tool which emulates dynamic, mobile ad-hoc wireless network topologies in real-time, featuring easy deployment and detailed network models. It was developed in the research project HIDENETS (http://www.hidenets.aau.dk)
Anyone running Lion on their Mac?
I'm currently running Snow Leopard (v. 10.6.8) and have been hesitant to upgrade to 10.7.X.
Anyone at all running Lion? Any experiences good or bad to report?
Thanks! (7 Replies)
Hi All,
I got a task to upgrade release version of Solaris-9. I need to upgrade from Solaris 9 (Update 7) to Solaris 9 (Update 9) . My current config is - root@tsdpt01:/# uname -a
SunOS tsdpt01 5.9 Generic_118558-06 sun4u sparc SUNW,Sun-Fire-V240
root@tsdpt01:/# cat /etc/release
... (2 Replies)
Dear Experts
I am using solaris 8 and its release is 5.8 (typing uname -r). What is the difference between these two.
Best Regards
Reza:confused: (1 Reply)
nfs3_nra(5) File Formats Manual nfs3_nra(5)NAME
nfs3_nra - control the number of read-ahead operations queued by the NFS version 3 client when sequentially accessing a file
VALUES
Failsafe
Default
Allowed values
Recommended values
A warning will be issued at runtime if the tunable is set to a value greater than 16 since this is beyond the tested limit. This is not a
serious warning but just an information message for the administrator.
DESCRIPTION
controls the number of read-ahead operations that are queued by the NFS version 3 client when sequential access to a file is discovered.
These read-ahead operations increase concurrency and read throughput. Each read-ahead request is generally for 32768 bytes of file data.
Who Is Expected to Change This Tunable?
The distributed file system administrator should examine this value depending on network bandwidth and memory pressure on the client.
Restrictions on Changing
The tunable is dynamic; tuning will take effect immediately on the running system.
When Should the Value of This Tunable Be Raised?
If the network is very high bandwidth and the client and server have sufficient resources, increase this value to more effectively utilize
the available network bandwidth, the client resources, and the server resources.
What Are the Side Effects of Raising the Value?
Tuning incorrectly based on network bandwidth can cause performance problems.
When Should the Value of This Tunable Be Lowered?
In a very low bandwidth network, decrease this value so the NFS client does not overload the network.
What Are the Side Effects of Lowering the Value?
Tuning incorrectly based on network bandwidth can cause performance problems.
WARNINGS
All HP-UX kernel tunable parameters are release specific. This parameter may be removed or have its meaning changed in future releases of
HP-UX.
Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parameter values. After installation,
some tunable parameters may no longer be at the default or recommended values. For information about the effects of installation on tun-
able values, consult the documentation for the kernel software being installed. For information about optional kernel software that was
factory installed on your system, see at
AUTHOR
was developed by Sun Microsystems, Inc.
SEE ALSO kctune(1M), sam(1M), gettune(2), settune(2), nfs2_nra(5), nfs4_nra(5), values(5).
Tunable Kernel Parameters nfs3_nra(5)