Am trying to differentiate between the local disks and LUN's presented from SAN onto the server. Have Tried fdisk -l, however I quite cudn't differentiate the local disks from SAN presented LUN's.
Can you pls. let me know the procedure and commands to find this.
OS - RHEL 4
SAN - EMC... (3 Replies)
Hi,
I have a SAN LUN of 550 GB created as an ext3 partition of the entire lun and need to make the lun and partition larger... 600 GB
# fdisk -l /dev/sdj
Disk /dev/sdj: 590.5 GB, 590558003200 bytes
255 heads, 63 sectors/track, 71797 cylinders
Units = cylinders of 16065 * 512 = 8225280... (3 Replies)
Hello to all,
Actually, currently on my Solaris box, I've a LUN (5TB space) from a EMC storage which is working fine, and a partition with ZFS filesystem is created for that LUN. as further you'll see in the logs, the "c4t6006016053802E00E6A9196B6506E211d0s2" is the current configured LUN in the... (4 Replies)
Hi,
I am trying to setup multipathing (using DM multipath) for a redhat cluster setup ...all setup is done but issue is :
node 1 shows the shared iscsi lun as sdc
node 2 shows the same as sdg (changes on reboots)
Due to this (i guess) i get i/o error & i can not read files created by... (0 Replies)
I have created a lun on Storage and connected it to server using fiber channel.
LUN is presented on new Server .
How do i check and mount this newly created LUN? (1 Reply)
Hello,
We have IBM storwize v7000 storage. I have created thin provisioned LUN and attached it to my server(dell r910, Centos 7).
Whenever I copy files in that LUN correspondingly Thin provisioned LUN's used space increases but when I remove files to free up space the LUN's size isn't... (5 Replies)
Discussion started by: Vit0_Corleone
5 Replies
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Hi
I am not familiar with the linux, but I was asked to create a file system on a LUN from the NetApp that was mapped to the linux server.
The server is runing:
uname -a
Linux localhost.localdomain 2.6.18-92.el5 #1 SMP Tue Apr 29 13:16:15 EDT 2008 x86_64 x86_64 x86_64 GNU/Linux
and now... (6 Replies)
I have NetApp LUN that was presented to a Red Hat Enterprise Linux Server release 5.7 (Tikanga) machine.
But this LUN has already data, because it was being used on another server.
I can see the new LUN when running fdisk:
fdisk -l | egrep '^Disk' | egrep -v 'dm-' | grep -v identifier
Disk... (15 Replies)
Discussion started by: fretagi
15 Replies
LEARN ABOUT CENTOS
sg_rdac
SG_RDAC(8) SG3_UTILS SG_RDAC(8)NAME
sg_rdac - display or modify SCSI RDAC Redundant Controller mode page
SYNOPSIS
sg_rdac [-a] [-f=LUN] [-v] [-V] DEVICE
DESCRIPTION
sg_rdac displays or modifies the RDAC controller settings via the Redundant Controller mode page (0x2C). When modifying the settings it
allows to transfer the ownership of individual drives to the controller the command was received on.
OPTIONS -a Transfer all (visible) devices
-f=LUN Transfer the device identified by LUN. This command will only work if the controller supports 'Dual Active Mode' (aka active/active
mode).
-v be verbose
-V print version string then exit
EXIT STATUS
The exit status of sg_rdac is 0 when it is successful. Otherwise see the sg3_utils(8) man page.
AUTHOR
Written by Hannes Reinecke <hare at suse dot com>, based on sg_emc_trespass.
REPORTING BUGS
Report bugs to <dgilbert at interlog dot com>.
COPYRIGHT
Copyright (C) 2006-2012 Hannes Reinecke, Douglas Gilbert.
This software is distributed under the GPL version 2. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR-
POSE.
sg3_utils-1.35 November 2012 SG_RDAC(8)