Changes-only restore

[n8chavez]

What's needed for a changes-only restore? I am using the below.

[RESTORE_DEFAULTS]
WriteChangedSecsOnly=1

[BACKUP_DEFAULTS]
CreateHash=1

Is there any command/switch/option that would negate or prohibit a changes-only restore. I'm using a Samsung 990 NVMe, so I know drat should function.

[TeraByte Support]

restore_defaults and backup_defaults are only used in the UI.

[n8chavez]

Right. I know that. I'm not adept enough to know how to initiate a restore from the CL. All my restores are done from the GUI. I just need to know how to properly complete a changes-only restore.

[Brian K]

Nate,

A summary...

In the Restore process, select the Changes only backup. You don't have to select the full backup at all.
In Options, accept the TeraByte defaults. Select Write Changed Sectors Only if that's what you want.

That's it.

[n8chavez]

Ok. If having the 'write changed sectors only' is the only option I need, what about hash files? What do I do with the .@0, .#_#, and, .#0 files? I added the following lines to my system backup script

"net stop protectit
attrib +h E:\TeraByte_TBI_Backups\*.#_# /s /d
attrib +h E:\TeraByte_TBI_Backups\*.@0 /s /d
attrib +h E:\TeraByte_TBI_Backups\*.#0 /s /d
net start protectit"

Could the altering of these attributes be preventing them from being seen by IFW during a restore, thus it cannot di a changes-only restore? I dunno. I'm just grasping here, trying to determine why my restore are not as fast as they should be.

[Brian K]

The hash files aren't used for a restore. Only for backups. But I'm not sure about metadata restores.

[n8chavez]

Well, see, that's something I didn't know. I thought they were used for restores, and that's how IFW determines what's changed and what needs to be written. Then I really have no need for them. I guess I got confused when the manual says:

"Metadata Based Restore – If the backup image being restored has a metadata
hash file you can select this option to restore using the file system metadata of
supported partitions (NTFS). Depending on the system and the data being restored,
this type of restore may be considerably faster than a normal restore. Due to this
type of restore depending on the destination partition’s file system metadata being
valid, you would use it for undoing changes and not for recovering from file system
corruption (a normal restore should be used in that case)."

[Brian K]

Edit, I checked my notes and you need both full and diff .@0 files for a metadata diff restore.

[n8chavez]

I do have that. I use /hash in my IFWRotate script.

set TBIParms=/wait /b /d:w1@0x1,0x2,0x3 /comp:12 /nt /hash /usemd /enc:3

[Brian K]

/hash is for faster changes only backups

/usemd will give you .@0 files