You don't calculate but just observe it. The kernel is computing its value.
Quote:
How we relate high scan rate value with swapping activities?
They are highly correlated.
Quote:
Our Solaris server was hung with very high scan rate values (about 1.1 million scans/second)
With such values, your server must be excessively thrashing and be almost unusable.
Quote:
but swap disk is available for 52 GB from 170 GB. Memory usage is 99% of 64 GB. I don't understand why swap disk is not used when memory is full utilized.
Swap disk is certainly used.
Please post the output of these commands when the problem occurs:
I need some help. I been doing system admin for the last several years and gotten very rusty on scripting. I need to write a script that will take a log entry and do math using two columns of data to create a new column. I am taking the column(#2) that contains the time and the column(#5) that... (3 Replies)
The formula below will calculate a distance in miles between 2 points in excel. Can some put it to work in unix?
Lat = 43.335
Lon1 = -70.9884
Lat2 = 43.4829
Lon2 = -71.246
distance... (8 Replies)
Hello Unix gurus,
Can anyone tell me the most efficient way to create script for the formula?
Formula:
Ans = 1 - ((Buffer pool data physical reads + Buffer pool xda physical reads + Buffer pool index physical reads + Buffer pool temporary data physical reads + Buffer pool temporary xda... (6 Replies)
Hello,
I'm trying to create a shell script (#!/bin/sh) which should tell me the age of a file in minutes...
I have a process, which delivers me all 15 minutes a new file and I want to have a monitoring script, which sends me an email, if the present file is older than 20 minutes.
To do... (10 Replies)
I'm new to Perl, but I need to use it to write into an excel spreadsheet. I want to copy the values of certain cells into a new sheet in the workbook. I'm unsure of how to do this because I don't know how to copy values instead of formulas.
Note: by formula I mean '=SUM(A1,A2)' and by value I... (0 Replies)
Hi Guys,
The management is being frisky about scan rate in the range of a few thousands ( 4 digit scan rates occasionally). After much research ive concluded that its ok to have high scan rates , unless it leads to swapping/ it falls above 1:4 ratio with free rate (fr:sr)
My question is:... (2 Replies)
Dear Masters,
Kindly need your helps for this issue..
I face a formula as a picture...
the input file is
A DEPT Vp Vs rho VPperVS
------------------------ ------------ ------------ ------------
700 151.9218 121.9269 ... (11 Replies)
Dear Experts,
If there is a possible Solaris Cluster failover to second node based on scan rate?
I need the documentation If solaris cluster can do this.
Thank You in Advance
Edy (3 Replies)
Discussion started by: edydsuranta
3 Replies
LEARN ABOUT HPUX
remote_nfs_swap
remote_nfs_swap(5) File Formats Manual remote_nfs_swap(5)NAME
remote_nfs_swap - enable swapping across NFS
VALUES
Default
Allowed values
DESCRIPTION
This tunable controls adding a NFS filesystem for use as swap. If is set to only local filesystems and devices can be used for swap. If
it is set to both local and networked file systems can be used for swap.
Historically, this tunable was used in NFS clusters that are no longer supported, but this capability has not yet been removed.
Who Is Expected to Change This Tunable?
Anyone.
Restrictions on Changing
Changes to this tunable take effect on the next boot.
When Should the Tunable Be Turned On?
Almost never. As previously mentioned, this tunable was designed for systems which are not in use today. Only systems with extremely
robust NFS capabilities should even consider using NFS for swap.
What Are the Side Effects of Turning the Tunable On?
If the value is set to and a NFS partition is added as swap, then some kernel memory will be set aside for NFS transactions to the swap
file system. The kernel will then use the NFS swap partition just the same as a local file system. If the NFS capabilities of the system
are not robust, this could lead to extremely long swap times (both swap in and swap out), and possibly a loss of memory because all the
reserved memory and more could be used by NFS (just when memory pressure is high) causing the need for swap.
When Should the Tunable Be Turned Off?
Unless you are positive that the NFS system can handle the load of being used as swap, and does not have a local file system or disk drive
to spare, this tunable should be set to
What Are the Side Effects of Turning the Tunable Off?
Any previously defined NFS swap filesystems will no longer be allowed. Kernel memory will not be reserved for NFS transactions due to
swap.
What Other Tunables Should Be Changed at the Same Time?
None.
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 HP.
Tunable Kernel Parameters remote_nfs_swap(5)