VxVM disk/lun grow Post: 302069491

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Top Forums UNIX for Advanced & Expert Users VxVM disk/lun grow Post 302069491 by pressy on Monday 27th of March 2006 03:39:19 AM

03-27-2006

Registered User

hmmm,

nice one reborg, thanks...

didn't know that option, it only comes with the Storage Foundation license, well, no problem here. still a strange behavior, but whatever, it works. I've tried it in a test-environment:

Code:

root@scnode2 # vxdisksetup -i c3t54d0
root@scnode2 # vxdg init testdg testhd=c3t54d0
root@scnode2 # vxassist -g testdg maxsize
Maximum volume size: 5681152 (2774Mb)
root@scnode2 # vxassist -g testdg make testvol 2774m layout=nostripe
root@scnode2 #
root@scnode2 # mkfs -F vxfs /dev/vx/rdsk/testdg/testvol
    version 6 layout
    5681152 sectors, 2840576 blocks of size 1024, log size 16384 blocks
    largefiles supported
root@scnode2 #
root@scnode2 #
root@scnode2 # mount -F vxfs /dev/vx/dsk/testdg/testvol /mnt
root@scnode2 # while true; do mkfile 1024m /mnt/testfile && rm /mnt/testfile ; done &
4247
root@scnode2 #
#### now i increased the lun and configured the new size in solaris: ####
root@scnode2 # vxassist -g testdg maxgrow testvol
VxVM vxassist ERROR V-5-1-1178 Volume testvol cannot be extend within the given constraints
#### nothing... now reborg's hint ####
root@scnode2 # vxdisk -g testdg resize testhd
VxVM vxdisk ERROR V-5-1-8643 Device testhd: resize failed: Cannot remove last disk in disk group
#### seems he want to reinitialize, out of group and back in.... ####
#### temporaly i've added a second disk ###
root@scnode2 # vxdg -g testdg adddisk testhd2=c3t53d0
root@scnode2 # vxdisk -g testdg resize testhd
root@scnode2 # pgrep mkfile
6832
root@scnode2 # 
root@scnode2 # vxdg -g testdg rmdisk testhd2
root@scnode2 # vxassist -g testdg maxgrow testvol
Volume testvol can be extended by 65441792 to: 71122944 (34728Mb)
root@scnode2 # vxresize -g testdg testvol 34728m
root@scnode2 # df -h /mnt
Filesystem             size   used  avail capacity  Mounted on
/dev/vx/dsk/testdg/testvol
                        34G   844M    31G     3%    /mnt
root@scnode2 # pgrep mkfile
7240
root@scnode2 # ls -lh /mnt
total 554016
drwxr-xr-x   2 root     root          96 Mar 27 10:29 lost+found
-rw-------   1 root     other       1.0G Mar 27 10:30 testfile
root@scnode2 # vxdisk -g testdg list
DEVICE       TYPE            DISK         GROUP        STATUS
c3t54d0s2    auto:cdsdisk    testhd       testdg       online
root@scnode2 #

it works live in my test, but veritas recommendation is to do it offline.

thanks again for that nice tip,

best regards PRESSY

pressy

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LEARN ABOUT SUSE

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)