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 DEBIAN
ql-dynamic-tgt-lun-disc
ql-dynamic-tgt-disc(8) System Administration ql-dynamic-tgt-disc(8)NAME
ql-dynamic-tgt-lun-disc - Scans for newly added LUNs.
SYNOPSIS
ql-dynamic-tgt-lun-disc [OPTIONS]
DESCRIPTION
Dynamic TGT-LUN Discovery Utility
This utility scans for newly added LUNs. After adding new LUNs, you do not need to unload, then load the QLogic FC driver or reboot the
system
To begin scanning the LUNs issue following command:
# /usr/sbin/ql-dynamic-tgt-lun-disc
-al, --allow-lip
LIP is not issued by default, even if it is required for scanning new LUNs Setting this option, allows the utility to issue LIP.
-cl, --current-luns
Displays LUNS currently present
-e, --extended-scan
Use this option as "-e | --extended-scan". to rescan LUNs. This will identify any change in attributes of existing LUNs. This option
can be used in combination of scan/refresh or max luns
-h, --help, ?
Prints this help message
-i, --interactive
Use this option to use the menu driven program
-is, --iscsi
Use this option to operate on ISCSI HBAs, this option can be used in combination of any other supported option.
-m, --max-lun
To set the maximum LUNs to be scanned
-p, --proc
Use PROC file system for LUN scanning
-r, --refresh
To refresh, that is remove LUNs that are lost use the options "-r|--refresh". This will remove the LUNs which no more exist.
-s, --scan [ -r|--refresh ]
The QLogic LUN scan utility re-scans all the devices connected to the QLogic HBA
SEE ALSO ql-lun-state-online(8), ql-hba-snapshot(8), ql-set-cmd-timeout(8)Matthias Schmitz <matthias@sigxcpu.org> July 2009 ql-dynamic-tgt-disc(8)