Image backup was really created for backing up raw partitions, as might be
used by databases. It has a couple of features to help out with filesystem
backup:
1. Based on serialization, it either does or does not try to unmount the
filesystem (static == unmount). If you image a mounted filesystem, you are
unlikely to get a consistent, usable image. You will probably fail to
unmount a filesystem that has any users.
2. Image integrates with normal incremental backups so that on a bulk
restore, you can restore the image, then pick up any incremental changes.
There is a nice description in the V3.7 Technical Guide, redbook
SG24-5477-00.
_____________________________
William Mansfield
Senior Consultant
Solution Technology, Inc
Joe Cascanette
<Joe.Cascanette@ To: [EMAIL PROTECTED]
CUMIS.COM> cc:
Sent by: "ADSM: Subject: Re: 4.2.1 IMAGE client
Dist Stor
Manager"
<[EMAIL PROTECTED]
T.EDU>
11/29/2001 10:26
AM
Please respond
to "ADSM: Dist
Stor Manager"
Can this be used imaging in junction with backup sets?
I have a few web servers with well over 500,000 small files. During a
recovery test it took many hours to restore this volume. I am testing
out the use of backup sets for recovery purposes (so I don't need to
build the TSM server first - there are a few servers I could start to
restore using backup sets while I restore the TSM server)
The other option was to add more drives to these servers, and execute a
command to compress all the little files into 1 for backup/restore,
which would increase these times 100X
Joe Cascanette
The Cumis Group Limited
-----Original Message-----
From: Cook, Dwight E (SAIC) [mailto:[EMAIL PROTECTED]]
Sent: Thursday, November 29, 2001 10:31 AM
To: [EMAIL PROTECTED]
Subject: Re: 4.2.1 IMAGE client
used for "image" backups ;-)
for backing up "raw" volumes (or any logical volumes...)
Say you have a file system with only 10 GB but it has a million files in
it... the overhead in backing up a million files is BAD but you could
perform an image backup of the logical volume on which the file system
resides and it would be much quicker due to the lesser amount of
overhead.
Granted you have to restore it as a whole but...
so that is what it is used for.
should have seen it earlier though.
Dwight
-----Original Message-----
From: Lawrence Clark [mailto:[EMAIL PROTECTED]]
Sent: Thursday, November 29, 2001 8:15 AM
To: [EMAIL PROTECTED]
Subject: 4.2.1 IMAGE client
Hi:
I am upgrading the AIX TSM clients to 4.2.1 and there appears to be a
new
fileset. Anyone care to say what this is used for?:
tivoli.tsm.client.image.aix43.32bit 4.2.1.0 # TSM Client - IMAGE
Backup
Client
