Got SAN lun 0 without mapping any disk to the server
Linux - NewbieThis Linux forum is for members that are new to Linux.
Just starting out and have a question?
If it is not in the man pages or the how-to's this is the place!
Notices
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Get a virtual cloud desktop with the Linux distro that you want in less than five minutes with Shells! With over 10 pre-installed distros to choose from, the worry-free installation life is here! Whether you are a digital nomad or just looking for flexibility, Shells can put your Linux machine on the device that you want to use.
Exclusive for LQ members, get up to 45% off per month. Click here for more info.
The storage model is EMC cx3-20f. The powerpath is not installed on the server.
I have read this link and it said that it's LUNZ (required by EMC).
Quote:
[root@RHEL6 ~]# multipath -ll
Jan 03 07:40:13 | DM multipath kernel driver not loaded
Jan 03 07:40:13 | /etc/multipath.conf does not exist, blacklisting all devices.
Jan 03 07:40:13 | A sample multipath.conf file is located at
Jan 03 07:40:13 | /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf
Jan 03 07:40:13 | You can run /sbin/mpathconf to create or modify /etc/multipath.conf
Jan 03 07:40:13 | DM multipath kernel driver not loaded
Device Boot Start End Blocks Id System
/dev/sda1 * 1 66 524288 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2 66 1959 15204352 8e Linux LVM
/dev/sda3 1959 8921 55922688 8e Linux LVM
The storage model is EMC cx3-20f. The powerpath is not installed on the server.
I have read this link and it said that it's LUNZ (required by EMC).
Thanks for the outputs.
You can get rid of this LUNZ by setting arraycommpath to 0. But I'd say this is not a good solution at all. Because setting this value may cause powerpath not to recognize devices. Instead, you can just assign a new LUN to the host group on the ex3 side and simply change the LUN id to 0. This should overlap the LUNZ currently you are seeing.
You can get rid of this LUNZ by setting arraycommpath to 0. But I'd say this is not a good solution at all. Because setting this value may cause powerpath not to recognize devices. Instead, you can just assign a new LUN to the host group on the ex3 side and simply change the LUN id to 0. This should overlap the LUNZ currently you are seeing.
Let me know if that works.
Thanks.
Also, user multipath after assigning a LUN. Set friendly names in multipath.conf as true. Seems, it's already installed on your system but not started. The startup script should be in /etc/init.d/multipathd.
LinuxQuestions.org is looking for people interested in writing
Editorials, Articles, Reviews, and more. If you'd like to contribute
content, let us know.