08-15-2014
"multipath" is likely in /sbin.
10 More Discussions You Might Find Interesting
1. Filesystems, Disks and Memory
what do you think about the ext3 journal filesystem?? (3 Replies)
Discussion started by: comadreja
3 Replies
2. Filesystems, Disks and Memory
As i'm sure you all know, ext2 (and then ext3) is the most widely used linux fs... but some distros (SUSE & Debian) are now chosing to either use by default, or at least give the option of using ReiserFS.
What is it about ReiserFS that's so great exactly? I understand that it has a limitless... (6 Replies)
Discussion started by: fishsponge
6 Replies
3. UNIX for Dummies Questions & Answers
Hi all,
I was installing linux, so i want to know the basic difference between /ext2 and /ext3 filetype..
what is the significance of using /ext2 and /ext3
pls clarify
Thanks
Vasikaran (2 Replies)
Discussion started by: vasikaran
2 Replies
4. Solaris
Hi everyone,
I wonder if I can canvas any opinions or thoughts (good or bad) on SAN attaching a SUN V880/490 to an EMC Clarion SAN?
At the moment the 880 is using 12 internal FC-AL disks as a db server and seems to be doing a pretty good job. It is not I/O, CPU or Memory constrained and the... (2 Replies)
Discussion started by: si_linux
2 Replies
5. UNIX for Dummies Questions & Answers
I'm trying to find a correct command that will mount a filesystem ext3 the device /dev/sda1 to mount point /mnt/usb but not allow any programs to run from it.
I want to be honest as I've read the forum rules... This is a homework question BUT, i'm generally interested in the correct process and... (3 Replies)
Discussion started by: CasperQuiet
3 Replies
6. UNIX for Dummies Questions & Answers
hi guys
suse 10.2
today some guys are adding some luns from a SAN so in order to add them I followed this command
echo 1 > /sys/class/fc_host/host1/issue_lip
echo "- - -" > /sys/class/scsi_host/host<number>/scan
nice now
after that I tried to create a folder in /
but it won't let... (2 Replies)
Discussion started by: karlochacon
2 Replies
7. Solaris
I am researching the cause of an issue. The SAN file system /export/pools/zd-xxxxxxxxxxx is having a high amount of read traffic even though it is empty. It is ZFS with MPXIO. Any ideas? It's really strange considering the file system is empty, and I don't see any errors.
cpu
us sy... (2 Replies)
Discussion started by: christr
2 Replies
8. AIX
Has anyone tried SAN to SAN mirroring on IBM DS SAN Storage.
DS5020 mentions Enhanced Remote Mirror to multi-LUN applications
I wonder if Oracle High availibility can be setup using Remote Mirror option of SAN ? (1 Reply)
Discussion started by: filosophizer
1 Replies
9. Solaris
I have two test machines having solaris 10. I have shared a location which have a package on machine1 and mounted that location onto machine2 as below.
machine1: share -F nfs -o rw /home1/pkg/test
machine2: mount -F nfs -o rw machine2:/home1/pkg/test /tmp/test
Now, when i am trying to... (8 Replies)
Discussion started by: snreddy_gopu
8 Replies
10. Filesystems, Disks and Memory
hi! i got a rhel 6.3 host that already have an xfs filesystem mounted from a SAN (let's call it SAN-1) whose size is 9TB.
i will be receiving another SAN (let's call it SAN-2) storage of 15TB size. this new addition is physically on another SAN storage. SAN-1 is on a Pillar storage while the new... (6 Replies)
Discussion started by: rino19ny
6 Replies
LEARN ABOUT SUSE
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] [-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
-p policy
force maps to 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.
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@free.fr> and others.
July 2006 MULTIPATH(8)