The output of ls -l /sys/block/*/device should give you an idea about how each device is connected to the system.
In the example below red is a virtual disk on an internal RAID controller, green is a CD-ROM connected via an IDE controller, and the rest are SAN-connected SCSI disks where "hostN" refers to the instance of the Host Bus Adapter they are connected to.
Hello everyone.
I was wondering if there is a way to increase the size on the LUN on a SAN and make the Linux kernel understand the changes without restarting?
In the past it has always been rebooted to see the new values but im sure that there is a way now for the lvm to see the Free PE in... (8 Replies)
Hi,
I'm new to SAN storage so I was wondering if someone can assist me with a problem. I have a solaris 10 OS with 3 SAN devices attached. We are trying to troubleshoot performance so I was asked to get the WWN of each SAN disk and show what it's attached to via the SVM mount in the metastat... (1 Reply)
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)
I am using hp ux 11.31
Our SAN storage is being presented from an IBM XIV.
We have 3 HP servers (rx4640's), and the XIV has them setup in a cluster, so that when a disk is presented all 3 servers can see the new LUN.
I'm setting up a new VM on one of the HP servers. I have allocated a 34Gb... (1 Reply)
Hello Everyone,
Can someone help me to mount a SAN hdisk which contains a clone data copy(san) of the remote server to the another machine. Both servers are running in AIX.
Thanks in advance !
Regards,
Gowtham.G (3 Replies)
Hi guys,
We have created a LUN on SAN and assigned it to a server.
On top of it we have created 4 LVM shares which are holding the data.
Is it possible to add this LUN to some other server and access the data on LVM shares?(noob here) (1 Reply)
hello,
i am an oracle DBA and trying to scan a newly created LUN of 200 GB on fiber channel by SAN admin.we have solaris 10 and SANtoolkit is installed.i tried following to get the new LUN at my machine. go /opt/Netapp/Santoolkit/bin and then ./sanlun lun show but i see only the existing... (12 Replies)
Hi All,
I am new for this blog and this is my first Query on this blog. I would like to dael with graet masters on linux.
Here we go,
After storage people created the LUN, How to add that LUN to Linux server. (Make that LUN visibility on linux server.) ?
How to view the LUN... (5 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)
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
LEARN ABOUT DEBIAN
sg_emc_trespass
SG_EMC_TRESPASS(8) SG3_UTILS SG_EMC_TRESPASS(8)NAME
sg_emc_trespass - Changes ownership of a LUN from another Service-Processor to this one.
SYNOPSIS
sg_emc_trespass [-d] [-hr] [-s] [-V] DEVICE
DESCRIPTION
sg_emc_trespass sends an EMC-specific Trespass Command to the DEVICE with the selected options. This Mode Select changes the ownership of
the LUN of the device from another Service-Processor to the one the command was received on.
OPTIONS
Arguments to long options are mandatory for short options as well.
-d outputs some extra debug information associated with executing this command
-hr Sets the 'Honor Reservation' bit in the command. If set, the trespass will only succeed to change the ownership from the Peer SP if
the Peer SP does not have an outstanding SCSI reservation for the LUN. By default, the reservation state will be ignored.
-s Send the short version of the trespass command instead of the long version. The short version is supported on the EMC FC5300, FC4500
and FC4700. The long version (default) is supported on the CLARiiON CX and AX family arrays.
-V print out version string then exit.
In the 2.4 series of Linux kernels the DEVICE must be a SCSI generic (sg) device. In the 2.6 series block devices (e.g. SCSI disks and DVD
drives) can also be specified. For example "sg_start 0 /dev/sda" will work in the 2.6 series kernels.
EXIT STATUS
The exit status of sg_emc_trespass is 0 when it is successful. Otherwise see the sg3_utils(8) man page.
AUTHOR
Written by Lars Marowsky-Bree, based on sg_start.
REPORTING BUGS
Report bugs to <dgilbert at interlog dot com>.
COPYRIGHT
Copyright (C) 2004 Lars Marowsky-Bree, 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-1.23 January 2007 SG_EMC_TRESPASS(8)