Quiesce blocks writes to disk, so any process that attempts to write
to disk will be suspended until the quiesce is released. Processes
can otherwise continue processing. For instance, a select can
read new pages into cache providing there are non-dirty buffers
that can be released and used to hold the new page image. Even
updates can continue - they can bring a new page into cache and
modify it (marking it dirty). These processes will be suspended once
they try to commit (since commit requires writing out the log records
for the transaction), or once the cache is full of dirty buffers.
-bret
Post by unknownHi,
thanks for the response.
I have got a few doubts.
What will happen to a process which is already running in
the server, if a quiesce command is issued.
What will happen if a new request is sent to the server
from client when the quiesce is issued and not yet released.
would appreciate your help.
Thanks in advance
Senthil.
Post by Bret HalfordIt is used for an alternative method of backing up
databases that is used typically
by customers who have very large systems and want to take
quick backups (i.e.the usual process of backing up to tape
via backupserver has become
cumbersome due to the number of tapes and amount of time
involved).
A full description of the process using TimeFinder as the
copy mechanism
(other copying methods can also b e used) is available
here: http://www.sybase.com/detail?id=1020459
Cheers,
-bret
Post by unknownwhen is a 'quiesce' command used?
I am using ASE 12.5.2
Thanks in advance.