Archive for the ‘fibre channel’ Category

Another take on Dynamic Volume Resize in RHEL 6

Being able to resize an LVM volume without reboot is quite handy. I had described one way here. This is a slightly different take on the same topic, this time on RHEL 6. I had resized /dev/sdb from 48GB to 140GB in vCenter. However, the operating system is still seeing the old size: [root@build ~]# […]

Posted on December 17, 2013 at 09:37 by somedude · Permalink · Leave a comment
In: centos, fibre channel, linux, linux tips, lvm2, san, storage

Dynamically discovering disk volume in RedHat

This is one of those “note to myself” posts. Discovering a new volume on a Linux server is little cruder than it is in Solaris. Obviously, you have to provision a LUN on the storage. I have never tried it but I suppose you could use /usr/bin/rescan-scsi-bus.sh script from sg3_utils package. Anyway, then you need […]

Posted on April 28, 2013 at 16:18 by somedude · Permalink · Leave a comment
In: centos, fibre channel, linux, linux tips, redhat, san, storage

How to configure Solaris 10 to drive HP MSL 6000

I have done this a long time ago so there might be something missing as this comes from sketchy notes that I still have. The point of this exercise is to get Solaris 10 to use MSL 6000 fibre channel library for backups using HP Data Protector 5.5. I have done this on Sun Fire […]

Posted on August 30, 2011 at 12:15 by somedude · Permalink · Leave a comment
In: fibre channel, hp data protector, hp msl, solaris, solaris tips

Linux multipathing

I use MPxIO in Solaris quite often and it works very well for me. This time I needed to test out I/O multipathing in RedHat. What I really needed to do: have a server with two HBA’s manage a mirror which has submirrors on separate SAN’s; so that the server has multiple paths to each […]

Posted on November 27, 2009 at 22:40 by somedude · Permalink · Leave a comment
In: centos, fibre channel, hp eva, linux, linux tips, multipathing, redhat, san, storage

Disabling MPxIO for onboard disks

I was configuring MPxIO on Sun Fire V490. After issuing stmsboot -e command and rebooting the server, internal disks were under MPxIO’s control. This was not something I wanted and I needed to disable it. In order to do so I had to edit /kernel/drv/fp.conf file and tell Solaris not to enable MPxIO on internal […]

Posted on September 1, 2008 at 19:36 by somedude · Permalink · Leave a comment
In: fibre channel, mpxio, san, solaris, solaris tips, storage, sun hardware