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Full Discussion: Moving filesystems into LVM - query.
Operating Systems Linux Red Hat Moving filesystems into LVM - query. Post 302925917 by gull04 on Thursday 20th of November 2014 07:03:50 AM
Old 11-20-2014
Hi Peasant,

I understand where you are comming from on this, but for relocating/moving/virtualising systems there are much more appropriate ways of doing it! On this job I've personally relocated more than 100 servers, the previous job it was almost 1000 as part of a team. The only outage suffered was on the legacy equipment that had to move data centres (lift and shift).

My preferred tools are TDMF and DRBD, both of which allow move/relocate function without any significant outages. Using LVM mirroring does make things easier in this context, but trying to mirror a multi Tb Oracle DB accross a WAN is problematic and in my experience custom tools do a better job.

Regards

Dave
 

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LEARN ABOUT OPENSOLARIS

pvck

PVCK(8)                                                       System Manager's Manual                                                      PVCK(8)

NAME

       pvck - check physical volume metadata

SYNOPSIS

       pvck [-d|--debug] [-h|--help] [-v|--verbose] [--labelsector] PhysicalVolume [PhysicalVolume...]

DESCRIPTION

       pvck checks physical volume LVM metadata for consistency.

OPTIONS

       See lvm for common options.

       --labelsector sector
              By  default, 4 sectors of PhysicalVolume are scanned for an LVM label, starting at sector 0.  This parameter allows you to specify a
              different starting sector for the scan and is useful for recovery situations.  For example, suppose the partition table is corrupted
              or  lost  on  /dev/sda, but you suspect there was an LVM partition at approximately 100 MB.  This area of the disk may be scanned by
              using the --labelsector parameter with a value of 204800 (100 * 1024 * 1024 / 512 = 204800):

              pvck --labelsector 204800 /dev/sda

              Note that a script can be used with --labelsector to automate the process of finding LVM labels.

SEE ALSO

       lvm(8), pvcreate(8), pvscan(8) vgck(8)

Sistina Software UK                                      LVM TOOLS 2.02.95(2) (2012-03-06)                                                 PVCK(8)
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