Hi, maybe a year ago I asked the same question and of of TSM programmers responded that this vere not a complicated technical issue but the developers would need an official requirement for it in order to do it. I was too lazy and / or busy to open an official requirement.
best regards Juraj Salak > -----Ursprüngliche Nachricht----- > Von: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] Im > Auftrag von Rushforth, Tim > Gesendet: Montag, 20. Dezember 2004 18:24 > An: [email protected] > Betreff: Sub-File Backup - 2 GB Limit > > Hi: > > > > Just curious if anyone knows if this limit has changed or > will change in the future? > > We have some users asking about it. > > > > Thanks, > > > > Tim Rushforth > > City of Winnipeg > > > > > > Forum: ADSM.ORG - ADSM / TSM Mailing List Archive > Date: 2003, Jan 06 > From: Jim Smith <nobody at nowhere.com > <mailto:nobody%20at%20nowhere.com> > > > Tim, > > Actually, two different behaviors based on two-different problems. > Files > that start less then 2 GB but grow > 2 GB will continue to > use subfile backup as long as the other requirements for the > base file (i.e., the file on the client cache) is still > valid. The limiting factor here is that there is only 32-bit > support in the differencing subsystem that we are using. We > chose 2 GB on the onset (instead of 4 GB) as the limit to > avoid any possible boundary problems near the 32-bit > addressing limit and also because this technology was aimed > at the mobile market (read: who is going to have files on > their laptops > 2 GB). I understand that there are several > shops that use this technology beyond the laptop environment. > Ultimately, the solution is to have a 64-bit subsystem in > place so that we can go beyond 4 GB. I suggest a requirement > to Tivoli if this is important to your shop. > > The low-end limit (1024 bytes) was due to some strange > behavior with really small files, e.g., if a file started out > at 5 k and then was truncated to 8 bytes. The solution was > to just send the entire file if the file fell below the 1k > threshold. We can get away with resending these small files > because ... they are small files! It is probably a wash to > resend or to try to correctly send a delta file in this case. > > Hope this helps. > > - Jim > > J.P. (Jim) Smith > TSM Client Development > smithjp AT us.ibm DOT com <mailto:smithjp%20AT%20us.ibm%20DOT%20com> > > >
