Yes it does restart, but if you watch the backup-archive client, it will
restart from where it left off.  They finally got that part to work
right.


--
Joshua S. Bassi
IBM Certified - AIX 4/5L, SAN, Shark
Tivoli Certified Consultant -ADSM/TSM
eServer Systems Expert -pSeries HACMP

AIX, HACMP, Storage, TSM Consultant
Cell (831) 595-3962
jbassi AT earthlink DOT net

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Nancy R. Brizuela
Sent: Wednesday, February 26, 2003 4:07 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: What happens when a backup is interrupted


Hi All,

Could I have someone confirm my understanding of what happens under
various circumstances when a backup is interrupted?  Do I understand
this correctly?

Per the manuals, client sessions are cancelled when the server is
halted.  If an operation, such as a backup or archive process is
interrupted when the session is cancelled, the server rolls back the
results of the current transaction.

The start window does not control whether or not a client backup
restarts after an interrupt (caused by the server).  It looks to me that
this is controlled by two parameters in the client option file, the
retry period and the maximum command retries.  It looks like a backup
would restart where it left off if the interrupt was caused by the
server.

It also appears that there is no restart provision if the interrupt is
caused by the client going down.  In that case, the backup must be
restarted.   However, if the client went down within the start window, I
think we could assume that the backup would restart, although it would
likely start completely over again.


Thanks!

Nancy Brizuela
University of Wyoming
IBM Systems Group
Ivinson Room 238
(307)766-2958