01-01-2020
Quote:
Originally Posted by
cokedude
I only set nofiles = 64000. Do you think that is to high? I was just using the above as an example.
64k is fine - its very unlikely that oracle will have this many files open at the same time anyways (which is what this tunable determines) as the Database itself is in just a number of large .dbf files. In addition they will have some text files and libraries open - but I doubt the user oracle even owns 64.000 files
10 More Discussions You Might Find Interesting
1. AIX
Hi,
I have a query that suppose the first or last name of the user changes and we need to change its userid for aix too. Then in that case how do we handle this scenario??I guess we can't change the user id so we should re-create the new id and associate all the data of the old id. But I donno... (1 Reply)
Discussion started by: tintin@10
1 Replies
2. UNIX for Dummies Questions & Answers
ulimit -a gives the following output:$ulimit -a
time(seconds) unlimited
file(blocks) 2097152
data(kbytes) 131072
stack(kbytes) 16384
memory(kbytes) unlimited
coredump(blocks) 32768
nofiles(descriptors) 400
vmemory(kbytes) 147456
Abot output... (3 Replies)
Discussion started by: nervous
3 Replies
3. AIX
how to set the ulimit on AIX 5.2 version? (3 Replies)
Discussion started by: Shilpi
3 Replies
4. AIX
Hi Guys,
How do I increase the filesize ulimit for user jf01474, using the same value as of user oracle?
Ex: /etc/security/limits
default:
fsize = 4194302
core = 2097151
cpu = -1
data = 262144
rss = 65536
stack = 65536
... (3 Replies)
Discussion started by: sky_lark02
3 Replies
5. HP-UX
Hi,
on HP-UX when I run command
ulimit -a
I get
time(seconds) 4096
file(blocks) unlimited
data(kbytes) 1048576
stack(kbytes) 8192
memory(kbytes) unlimited
coredump(blocks) 4194303
nofiles(descriptors) 4096
Now I want to change
file(blocks) ... (2 Replies)
Discussion started by: namita.mundada
2 Replies
6. UNIX for Dummies Questions & Answers
Hello AIX gurus,
I have a requirement where I have to change user ID of user "myuser" from 100 to 200 and also the group ID of "mygroup" from 2 to 3. Please note that "myuser" has "mygroup" as it's primary group.
What steps do I need to follow for this and in what order? Also can you please... (2 Replies)
Discussion started by: sacguy08
2 Replies
7. AIX
Hello,
How can I setup the ulimit for memory permanent
ulimit -m unlimited
ulimit -a Output from the ulimit command should be similar to the following:time(seconds) unlimited
file(blocks) unlimited
data(kbytes) 2097152
stack(kbytes) 32768... (4 Replies)
Discussion started by: filosophizer
4 Replies
8. UNIX for Dummies Questions & Answers
Hello All,
If a user in AIX is locked due to multiple failed login attempts. How do I find out the IP address from where failed attempts were made?
regards,
Roshni (0 Replies)
Discussion started by: RoshniMehta
0 Replies
9. Red Hat
The root user runs the following
ulimit -a | grep open
and gets a result of
open files (-n) 8162
A user runs the same command and gets a result of
open files (-n) 2500
How can you set the ulimit of the user to... (2 Replies)
Discussion started by: jsanders
2 Replies
10. AIX
Hi,
what are the ideal/best/recommended ulimit settings for a root user in AIX?
I understand that it depends on our environment. But I would like to know...what are settings you guys use in your environment for best performance.
default:
fsize = 2097151
core = 2097151
... (8 Replies)
Discussion started by: System Admin 77
8 Replies
LEARN ABOUT HPUX
norewind_close_disabled
norewind_close_disabled(5) File Formats Manual norewind_close_disabled(5)
NAME
norewind_close_disabled - determine whether access to tape device special files without the no-rewind-on-close option is allowed
VALUES
Default
Allowed values
DESCRIPTION
Note: this tunable was named in releases prior to HP-UX 11i v3.
This tunable notifies the tape driver whether it should allow access to device special files without the no-rewind-on-close option. When
this tunable is on, the tape driver will fail any open on a tape device special file that does not have the no-rewind-on-close option (that
is, or with a status of
The tunable allows the safe sharing of tape devices in SAN tape backup solution configurations. The disabling of device special files
without no-rewind-on-close in a SAN tape backup solution configuration prevents the accidental sending of a rewind command on close from
HP-UX systems via standard tape commands like which would corrupt a backup in process.
Who Is Expected to Change This Tunable?
Anyone.
Restrictions on Changing
Changes to this tunable take effect immediately.
When Should the Tunable Be Turned On?
This tunable should be turned on if the system is going to be used in a SAN tape backup solution configuration.
What Are the Side Effects of Turning the Tunable On?
The tape driver will fail any open to a tape device special file that does not have the no-rewind-on-close option with a status of This
behavior prevents the usage of any tape device special file without the no-rewind-on-close option.
When Should the Tunable Be Turned Off?
This tunable should be turned off if the system is not part of a SAN tape backup solution configuration or the system utilizes will not
function unless it has access to device special files without the no-rewind-on-close option.
What Are the Side Effects of Turning the Tunable Off?
A rewind may be issued accidentally from this system on close, possibly corrupting a backup being issued from another system on the SAN.
What Other Tunables Should Be Changed at the Same Time?
None.
EXAMPLES
Query the current value of the tunable:
Set the value of the tunable to
To save the value of the tunable across reboots:
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 Hewlett-Packard.
SEE ALSO
scsi_tape(7), scsimgr_estape(7).
Tunable Kernel Parameters norewind_close_disabled(5)