Using rsync --link-dest pointing to a remote server Post: 302824807

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Top Forums Shell Programming and Scripting Using rsync --link-dest pointing to a remote server Post 302824807 by Orionizer on Friday 21st of June 2013 02:52:16 PM

06-21-2013

Registered User

Using rsync --link-dest pointing to a remote server

Ok, I'm trying to figure out how to reference a remote file using the rsync --link-dest parameter.

Here is the code I have so far:

Code:

#
# FILESERVER INCREMENTAL BACKUP SCRIPT
#

# Remove previous log file

rm /usr/local/bin/rsync-incremental.log

# Set daily variables

DAY0=`date -I`
DAY1=`date -I -d "1 day ago"`
DAY6=`date -I -d "2 days ago"`
DAY7=`date -I -d "3 days ago"`
DAY8=`date -I -d "4 days ago"`

# Set rsync variables

SRC="/usr/smbshares"
TRG="root@synology1:/volume1/Fileserver/$DAY0"
LNK="root@synology1:/volume1/Fileserver/$DAY1"
OPT="-avhz -e ssh --log-file=/usr/local/bin/rsync-incremental.log --delete --link-dest=$LNK"

# Remove old backups

ssh root@synology1 "if [[ -d /volume1/Fileserver/$DAY6 ]]; then nohup rm -rf "/volume1/Fileserver/$DAY6"; fi"

ssh root@synology1 "if [[ -d /volume1/Fileserver/$DAY7 ]]; then nohup rm -rf "/volume1/Fileserver/$DAY7"; fi"

ssh root@synology1 "if [[ -d /volume1/Fileserver/$DAY8 ]]; then nohup rm -rf "/volume1/Fileserver/$DAY8"; fi"

# Perform the rsync

rsync $OPT $SRC $TRG

Everything is working now except the --link-dest parameter. I get the following error at the beginning of execution:

--link-dest arg does not exist: root@synology1:/volume1/Fileserver/2013-06-20

What's funny is the rsync has no issue using the same syntax for the target folder of the command...

Anyone know how to reference the remote file for this?

Thanks!

---------- Post updated at 01:52 PM ---------- Previous update was at 01:31 PM ----------

If anyone is wondering, I'm trying to accomplish backing up a SLES Samba server to a remote Synology NAS. I want to keep 5 days worth of backups on the NAS, but only the original or changed files. Not backing up ALL files all five days.

If a backup folder exists that is 6, 7 or 8 days old, I want to remove it to keep files from accumulating on the NAS over time.

I know the $DAY6, etc. variables are wrong as I changed them for testing purposes.

So that's what I'm trying to accomplish. If you can think of any better way to accomplish this, I'd be glad to give that a shot as well, but from what I've read it seems rsync is pretty reliable and quick.

As it's working right now, I am getting the 5 days worth of backups, but it's copying every file every time as the --link-dest isn't working.

Orionizer

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LEARN ABOUT DEBIAN

dtc-xen_migrate

dtc-xen_migrate(8)					      System Manager's Manual						dtc-xen_migrate(8)

NAME

       dtc-xen_migrate - migrate a VPS to another Xen server

SYNOPSIS

       LOCAL_VPS_ID DESTINATION_HOSTNAME [ DEST_VPS_ID ]

DESCRIPTION

       dtc-xen_migrate	This  shell  script  is a part of the dtc-xen package that is to be used by the dtc panel to manage a Xen VPS server. Note
       that you need rsync in both the source and the destination dom0.

       This script is used to move the content of a Xen virtual machine (VM) managed with dtc-xen to another Xen server of the same type.  The	VM
       destination will first be prepared, then the local VM will be shut down, then it's content will be transfered over using rsync.

       Note that this is NOT a live migration, and down time of approximatively the time needed for the rsync will occure.

PARAMETERS

       LOCAL_VPS_ID The DTC-Xen id of the VM, from 00 to 99.

       DESTINATION_HOSTNAME Destination Xen server hostname to migrate to.

       DEST_VPS_ID Destination DTC-Xen id of the VM, from 00 to 99.

EXAMPLE

       dtc-xen_migrate 19 alpha.example.com 21

       This will migrate the content of xen19 on the local machine to the destination server alpha.example.com using xen21 as VM name.

SEE ALSO

       dtc_reinstall_os(8), dtc_kill_vps_disk(8)

																dtc-xen_migrate(8)

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