Advice on a backup script, maybe one is out there already? Post: 302987534

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Top Forums UNIX for Advanced & Expert Users Advice on a backup script, maybe one is out there already? Post 302987534 by rbatte1 on Monday 12th of December 2016 08:19:26 AM

12-12-2016

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If the content is a database, then backing up in this way may also not give you a consistent restore in any case, especially if you are unable to read some of them!

You might be better getting the database tools to make a backup. Another alternate (but I'm guaranteeing it) might be to use LVM snapshots if you OS supports it. This way, you can be sure that the files are idle and although the database might go into crash-recovery (as though you've had a power loss) it should give you a point-in-time restore from when you split off the copy.

What OS are you using?

One worries that this is not a good plan though. If you cannot read all the data, how would you plan to restore it?

On your point about getting it to run faster, it will always depend on a number of factors, such as volume of data, if there is I/O contention etc. I/O contention can occur for various reasons, such as sharing physical media/access path (shared controllers, fibre etc.) or other users even.

Is the device SAN based? There may be a way to use SAN tools to copy a LUN that would give a suitable restore point. Of course it would revert everything on that LUN, so that might not be what you want, but perhaps you could mount the copy LUN as another filesystem and back that up away from the live database.

Can you explain a bit more about your server setup?

Kind regards,
Robin

rbatte1

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LEARN ABOUT CENTOS

idevicebackup2

idevicebackup2(1)					      General Commands Manual						 idevicebackup2(1)

NAME

       idevicebackup2 - Create or restore backups for devices running iOS 4 or later.

SYNOPSIS

       idevicebackup2 [OPTIONS] CMD [CMDOPTIONS] DIRECTORY

DESCRIPTION

       Create or restore backup from the current or specified directory.

OPTIONS

       -u, --udid UDID
	      target specific device by its 40-digit device UDID.

       -s, --source UDID
	      use backup data from device specified by UDID.

       -i, --interactive
	      request passwords interactively on the command line.

       -d, --debug
	      enable communication debugging.

       -h, --help
	      prints usage information.

COMMANDS

       backup create backup for the device.

       restore
	      restore last backup to the device.

	    --system
	      restore system files, too.

	    --reboot
	      reboot the system when done.

	    --copy
	      create a copy of backup folder before restoring.

	    --settings
	      restore device settings from the backup.

	    --remove
	      remove items which are not being restored.

	    --password PWD
	      supply the password of the source backup.

       info   show details about last completed backup of device.

       list   list files of last completed backup in CSV format.

       encryption on|off [PWD]
	      enable or disable backup encryption.

       changepw [OLD NEW]
	      change backup password on target device.

AUTHORS

       Martin Szulecki

       Nikias Bassen

SEE ALSO

       idevicebackup(1)

																 idevicebackup2(1)