The power path devices used by ASM are as you point out
and may be identified by ASM as such. Removing the power path devices and replacing with MPXIO will create the disks as
which ASM may not recognise on startup.
Once ASM see's the disks it will sort it's self out and will correctly identify all the disks, I know this because two years ago I did extensive testing - on AIX and Solaris where the disk ID's were deliberately mixed up. In all cases ASM sorted everything out, even when the physical disk ID's were swapped around on multiple disks but the underlying multi-pathing always remained the same.
To accomplish this there was a manual intervention, whilst bringing up ASM - DBA's did that bit. I would completely agree with you that if the environment allows this should be tested, I would assume that there would be a Test/Dev setup of some sort to do this on.
Hi all,
how to find 3rd party softwares like Oracle,phpldapadmin,Citrix etc (other than packages) which are installed on a linux box.
Please guide me to get this info'n on LINUX/SOLARIS.
Thanks in advance,
Uday (0 Replies)
I am connected to Internet on newly built solaris machine. I have downloaded putty.exe on Desktop and then when I double clicked it ... It gave some errors of 'Associating Application...' what is all that? and How to run Putty now? I dont remember... but may be I did something on association window... (1 Reply)
Greetings to Everyone, iam a new unix learner , can anyone tell me how to install softwares and utilities in unix, (comparing with windows installation) . in windows we use to install softwares like executing a "exe" file with "next,next....finish."
Give me some details abt "how the setup... (1 Reply)
I need list of 3rd party softwares installed in a Unix server (eg: Fedora / RedHat). I know if they are system supported format (like rpm format for fedora/redhat, pkg format for debian/ubuntu etc) we can list them by system specific commands ($ rpm -qa). But how to list the softwares installed... (3 Replies)
I just installed solaris 10 x86, i was wondering if there are softwares out there that i can install on my system to make my system more lively
eg photo browser etc, also i was trying to play dvd movie with totem movie player when i had error "could not determine stream type" (2 Replies)
hi everyone,
We have rac system which has two sun solaris M5000s and two oracle 11gR2 databases respectively. Also , we have unix codes on one rac and these unix codes extract txt files for external tables during first step of ETL.
We run our unix codes using Util.RunThis java code and... (10 Replies)
Which distro uses lowest system resource (when installed on hard_disk/usb.) where I can install software from Debian OR Ubuntu repository?
I found Quelitu which is based on Lubuntu, but uses less memory as given on their site. There are lighter distros but most of them are based on Slackware. I... (0 Replies)
Hi Folks,
Please advise for FTP client softwares like winscp we use mostly to transfer the files to other unix box machines but any ftp software which in logs will also generate and show the unix commands parallely for ex if I create a directory graphically through ftp software then it will list... (1 Reply)
I need to know information regarding the softwares/applications that are installed on my Solaris server and also its end of life or support information.
Can some one help me how to get these details please...
Thanks (3 Replies)
Discussion started by: ssk250
3 Replies
LEARN ABOUT DEBIAN
multipath
MULTIPATH(8) Linux Administrator's Manual MULTIPATH(8)NAME
multipath - Device mapper target autoconfig
SYNOPSIS
multipath [-v verbosity] [-d] [-h|-l|-ll|-f|-t|-F-B] [-p failover|multibus|group_by_serial|group_by_prio|group_by_node_name] [device]
DESCRIPTION
multipath is used to detect multiple paths to devices for fail-over or performance reasons and coalesces them
OPTIONS -v level
verbosity, print all paths and multipaths
0 no output
1 print the created or updated multipath names only, for use to feed other tools like kpartx
2 + print all info : detected paths, coalesced paths (ie multipaths) and device maps
-h print usage text
-d dry run, do not create or update devmaps
-l show the current multipath topology from information fetched in sysfs and the device mapper
-ll show the current multipath topology from all available information (sysfs, the device mapper, path checkers ...)
-f flush a multipath device map specified as parameter, if unused
-F flush all unused multipath device maps
-t print internal hardware table to stdout
-r force devmap reload
-B treat the bindings file as read only
-p policy
force new maps to use the specified policy:
failover 1 path per priority group
multibus all paths in 1 priority group
group_by_serial
1 priority group per serial
group_by_prio
1 priority group per priority value. Priorities are determined by callout programs specified as a global, per-con-
troller or per-multipath option in the configuration file
group_by_node_name
1 priority group per target node name. Target node names are fetched in /sys/class/fc_transport/target*/node_name.
Existing maps are not modified.
device update only the devmap the path pointed by device is in. device is in the /dev/sdb (as shown by udev in the $DEVNAME variable) or
major:minor format. device may alternatively be a multipath mapname
SEE ALSO multipathd(8), multipath.conf(5), kpartx(8), udev(8), dmsetup(8)hotplug(8)AUTHORS
multipath was developed by Christophe Varoqui, <christophe.varoqui@opensvc.com> and others.
July 2006 MULTIPATH(8)