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Full Discussion: Exporting physical disk to ldom or ZFS volume
Operating Systems Solaris Exporting physical disk to ldom or ZFS volume Post 303016066 by psychocandy on Thursday 19th of April 2018 05:16:26 AM
Old 04-19-2018
Exporting physical disk to ldom or ZFS volume
Generally, this is what we do:-
  1. On primary, export 2 LUNs (add-vdsdev).
  2. On primary, assign these disks to the ldom in question (add-vdisk).
  3. On ldom, created mirrored zpool from these two disks.

On one server (which is older) we have:-
  1. On primary, create mirrored zpool from the two LUNs.
  2. On primary, assign this zfs disk to the ldom in question (add-vdisk).
  3. On ldom, create single disk zpool from this.

On this one server we're getting performance issues. I've heard that doing it this way (i.e. mirrored zfs on primary and exporting this) is not the best way to do it and will create an overhead?

Is this true? Or doesn't it make any difference?
Last edited by rbatte1; 04-19-2018 at 06:50 AM.. Reason: Converted textual numberd lists to formatted numbered lists with LIST=1 tags
 

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LEARN ABOUT HPUX

vxdestroy_lvmroot

vxdestroy_lvmroot(1M)													     vxdestroy_lvmroot(1M)

NAME

       vxdestroy_lvmroot - remove LVM root disk and associated LVM volume group

SYNOPSIS

       vxdestroy_lvmroot [-v] [-b] lvm_root_disk

DESCRIPTION

       The  vxdestroy_lvmroot  command	tears  down  and removes the LVM volume group associated with the specified physical disk. This is done by
       removing the volumes in the volume group and then removing the volume group.

OPTIONS

       -b	 Invokes the setboot command to change the primary boot disk to the VxVM root disk from which the system was booted (if  the  pri-
		 mary  boot  disk is not already set to this disk).  The alternate boot device remains unchanged.  If the -v option is also speci-
		 fied, the settings of the primary and alternate boot devices are displayed.

       -v	 Outputs verbose messages including a timestamp that indicates major operations being performed.

ARGUMENTS

       lvm_root_disk
	    Specifies the device name of the LVM root disk that is to be destroyed, along with its entire volume group.

EXAMPLES

       This example shows the vxdestroy_lvmroot command invoked in its simpliest form:

       /etc/vx/bin/vxdestroy_lvmroot c5t1d0

       # /etc/vx/bin/vxdestroy_lvmroot -v -b c3t0d0
       Are you sure about destroying c3t0d0 (imported on VG /dev/vg02) ? YES
       vxdestroy_lvmroot 06:02: Tearing down /dev/vg02 on device c3t0d0
       vxdestroy_lvmroot 06:02:
	 Unmounting and removing any volumes associated with /dev/vg02
       vxdestroy_lvmroot 06:02: removing logical volume /dev/vg02/lvol1
       vxdestroy_lvmroot 06:02: removing logical volume /dev/vg02/lvol2
       vxdestroy_lvmroot 06:02: removing logical volume /dev/vg02/lvol3
       vxdestroy_lvmroot 06:02: removing logical volume /dev/vg02/lvol4
       vxdestroy_lvmroot 06:02: removing logical volume /dev/vg02/lvol5
       vxdestroy_lvmroot 06:02: removing logical volume /dev/vg02/lvol6
       vxdestroy_lvmroot 06:02: removing logical volume /dev/vg02/lvol7
       vxdestroy_lvmroot 06:02: removing logical volume /dev/vg02/lvol8
       vxdestroy_lvmroot 06:02: Removing Volume Group /dev/vg02
       vxdestroy_lvmroot 06:02: Removing device files in /dev/vg02
       vxdestroy_lvmroot 06:02: Removing LVM Physical Volume c3t0d0
       vxdestroy_lvmroot 06:02: Removing LVM Physical Volume c1t1d3
       vxdestroy_lvmroot 06:02: Removing LVM Physical Volume c1t1d4
       vxdestroy_lvmroot 06:02: Removing LVM Physical Volume c1t1d5
       vxdestroy_lvmroot 06:03: Current setboot values:
       vxdestroy_lvmroot 06:03: Primary:       0/0/6/0/0.0.0
       vxdestroy_lvmroot 06:03: Alternate:     0/0/1/0/0.1.0
       vxdestroy_lvmroot 06:03:
	 Making disk c0t1d0 (0/0/1/0/0.1.0) the primary boot disk
       vxdestroy_lvmroot 06:03:
	 Removal of device c3t0d0, volume group /dev/vg02 was successful

SEE ALSO

       cpio(1), dd(1), fsck(1M), setboot(1M) vxbootsetup(1M) vxcp_lvmroot(1M) vxres_lvmroot(1M)

VxVM 5.0.31.1							    24 Mar 2008 					     vxdestroy_lvmroot(1M)
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