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Full Discussion: Why is restore slower than backup?
Operating Systems Solaris Why is restore slower than backup? Post 67633 by deckard on Thursday 24th of March 2005 03:57:39 PM
Old 03-24-2005
Why is restore slower than backup?
After my big disaster, I'm restoring from tape on my Sun box. This is the second time I've used 'ufsrestore' with this DEC TZ88 SCSI DLT drive. The last time was for a migration from one box to another. Both the last time and this time, the restore has taken a hell of a lot longer than the backup does. The full nightly backup takes about 2-4 hours for 14 gigs of data. But when using 'ufsrestore -i' to restore 14 gigs it's taking more like 14-18 hours at a time. (I've had to do test restores so I have a few different cases with the data hovring between 12-14 gigs and the restore times between 14-18 hours) What I'm wondering is if there are any driver parameters or SCSI subsystem parameters I should be tuning for restores in order to get a faster restore time. Is it slow because I'm using 'ufsrestore'? Is it slow because I'm using 'ufsrestore' in interactive mode?
 

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LEARN ABOUT DEBIAN

idevicebackup2

idevicebackup2(1)					      General Commands Manual						 idevicebackup2(1)

NAME

       idevicebackup2 - Create or restore backup for iDevices running iOS4+.

SYNOPSIS

       idevicebackup2 [OPTIONS] CMD [CMDOPTIONS] DIRECTORY

DESCRIPTION

       Create or restore backup from the current or specified directory.

OPTIONS

       -u, --uuid UUID
	      target specific device by its 40-digit device UUID.

       -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.

       info   show details about last completed backup of device.

       list   list files of last completed backup in CSV format.

       unback unpack a completed backup in DIRECTORY/_unback_/.

AUTHORS

       Martin Szulecki

       Nikias Bassen

SEE ALSO

       idevicebackup(1)

																 idevicebackup2(1)
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