Hello everybody...
I have a Server conected to a Disk Array through 2 canals of FiberChannel... I've installed RedHat Advance Server 3 and of course i see two device files that refer the same disk: for example: /dev/sda and /dev/sdb are refered to the same Lun... This is the same case for a new... (2 Replies)
Hi..
when i delete a Lun from a Array on a SAN, and again when i create a Lun it shows that the newly created Lun has the ID of the Old deleted Lun which is leading to data corruption. All this is handled by the Multipath software. can anybody help. (0 Replies)
Hi All,
When I execute multipath -ll command that time display only 3 path (mpath1,mpath2 and mpath5), not display other 2 path (mpath3 and mpath4). I have configure 5 path in /etc/multipath.conf file. What is the reason behind it. Please help me.
Please find below the output :
... (5 Replies)
Hi All,
When I execute "multipath -ll" command that time display only 3 path (orafra2,oradata2 and oradata1), not display other 2 path (orafra1 and data1). I have configure 5 path in "/etc/multipath.conf" file. What is the reason behind it. Please help me.
Please find below some output for... (4 Replies)
Hello,
i have a problem with the multipath tools configuration.
i can't remove the local disk paths.
the multipath.conf archives configuration is:
---------------------------------------------------------
$ cat /etc/multipath.conf
blacklist{
devnode cciss
devnode fd
... (0 Replies)
Hi,
I am running RHEL6 on a physical node (HP Proliant).
If it normal for the root device to get listed in the "multipath -ll" output? (Listed below as dm-4, HP LOGICAL VOLUME).
i.e.
asm-data (360a98000424a414b453f443548503644) dm-3 NETAPP,LUN
size=768G features='4 queue_if_no_path... (0 Replies)
Need attach Oracle Linux 7.1 to IBM Storage DS5300
in AIX use sddpcm package for storage driver, but in oracle linux i can not find similar driver in IBM site. Someone confronted with a like case ? (1 Reply)
Hi,
I have a RAC installation on 2 solaris 11 nodes. (With ASM)
Disks' mpath are managed by EMC Powerpath on both nodes.
I want to migrate mpath software to Solaris multipath without downtime.
My plan is first migrate node1 to solaris mpath, then after some days migrate node2 to sol.mpath.
My... (5 Replies)
Discussion started by: vlkkck
5 Replies
LEARN ABOUT OPENDARWIN
rtprio
RTPRIO(2) BSD System Calls Manual RTPRIO(2)NAME
rtprio -- examine or modify a process realtime or idle priority
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <sys/types.h>
#include <sys/rtprio.h>
int
rtprio(int function, pid_t pid, struct rtprio *rtp);
DESCRIPTION
The rtprio() system call is used to lookup or change the realtime or idle priority of a process.
The function argument specifies the operation to be performed. RTP_LOOKUP to lookup the current priority, and RTP_SET to set the priority.
The pid argument specifies the process to be used, 0 for the current process.
The *rtp argument is a pointer to a struct rtprio which is used to specify the priority and priority type. This structure has the following
form:
struct rtprio {
u_short type;
u_short prio;
};
The value of the type field may be RTP_PRIO_REALTIME for realtime priorities, RTP_PRIO_NORMAL for normal priorities, and RTP_PRIO_IDLE for
idle priorities. The priority specified by the prio field ranges between 0 and RTP_PRIO_MAX (usually 31). 0 is the highest possible prior-
ity.
Realtime and idle priority is inherited through fork() and exec().
A realtime process can only be preempted by a process of equal or higher priority, or by an interrupt; idle priority processes will run only
when no other real/normal priority process is runnable. Higher real/idle priority processes preempt lower real/idle priority processes.
Processes of equal real/idle priority are run round-robin.
RETURN VALUES
The rtprio() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indicate
the error.
ERRORS
The rtprio() system call will fail if
[EINVAL] The specified prio was out of range.
[EPERM] The calling process is not allowed to set the realtime priority. Only root is allowed to change the realtime priority of
any process, and non-root may only change the idle priority of the current process.
[ESRCH] The specified process was not found.
SEE ALSO nice(1), ps(1), rtprio(1), setpriority(2), nice(3), renice(8)AUTHORS
The original author was Henrik Vestergaard Draboel <hvd@terry.ping.dk>. This implementation in FreeBSD was substantially rewritten by David
Greenman.
BSD July 23, 1994 BSD