ADSM-L

Re: [ADSM-L] Backup of ownership and ACLs

2009-02-16 16:22:26
Subject: Re: [ADSM-L] Backup of ownership and ACLs
From: Mark Stapleton <Mark.Stapleton AT CDW DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Mon, 16 Feb 2009 15:20:26 -0600
Perhaps. But what happens when you restore files without the latest ACLs? 
They're set for a reason, and to not restore the entire file's contents strikes 
me as rather worthless.

--
Mark Stapleton
System engineer, CDW


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Rolf Meyer
Sent: Monday, February 16, 2009 3:16 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] Backup of ownership and ACLs

Hello

I think, there's an option called SKIPACLUPDATCHECK, which can be used
to prevent incr backups just because of changing ACL-infos.

Give it a try.

Rolf Meyer
Storage Consultant
PROFI Engineering Systems AGAlexander Födisch schrieb:
> Hi all,
>
> if we change the ownership (chmod/chgrp) or the ACLs of files/folders on
> our GPFS-filesystem, all affected
> data will be backed up again from TSM because the ctime was changed -
> same behaviour on a XFS filesystem.
> We often have to change recursively the ACLs of a 15TB-folder and so
> this 15TB are backup up nearly daily...
> I understand the necessity of backing up metadata as ownership or ACLs
> :) But is there an other possibility?
>
> Can we backup just the metadata of changed files instead of all the
> data? Depends this on the filesystem?


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