ADSM-L

Re: Sub-File Backup - 1 GB Limit

2003-01-03 17:53:27
Subject: Re: Sub-File Backup - 1 GB Limit
From: "Rushforth, Tim" <TRushfor AT CITY.WINNIPEG.MB DOT CA>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Fri, 3 Jan 2003 16:52:49 -0600
Thanks Jim!

I was confusing "size of base file falls < 1024" with 1 GB!

So if a file starts at less than 2 GB but then grows bigger than 2GB it will
no longer be eligible?  Similar if a file falls below 1024 bytes?

Thanks again!

Tim

-----Original Message-----
From: Jim Smith [mailto:smithjp AT US.IBM DOT COM]
Sent: January 3, 2003 4:36 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Sub-File Backup - 1 GB Limit

Tim,

Actually, the subfile limit is 2 Gig; if a file size > 2 Gig then TSM will
not bother to copy the base file to the client cache, so it could not be a
candidate for subfile processing on a subsequent backup.

Thanks,
Jim

J.P. (Jim) Smith
TSM Client Development
smithjp AT us.ibm DOT com


Last August, Jim Smith wrote:


>Today the client code will send a new base file in these cases:
>
>- if the last time the detla was taken, the ratio of delta:base is > .40
>- digital signature of base is incorrect or doesn't match signature on
>server
>- base entry on client cache is dirty, i.e., never committed on the
server
>- size of base file falls < 1024
>- file is excluded from subfile backup processing, i..e, exclude.subfile
>- file is encrypted by Windows efs


I just want to double check, does this mean that there is still the 1GB
limit for subfile backup?  Ie. If a file is > 1 GB, is it ineligible for
subfile processing?

Thanks,

Tim Rushforth
City of Winnipeg