HP StorageWorks Storage Mirroring for Linux User's Guide (T2558-96317, June 2009)

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5. Schedule any desired stop criteria to stop transmission after a transmission start criteria has
initiated the transmission. If you do not establish a stop criteria, transmission will end when the
queue is empty. Select the Stop option in the Limit Type box.
Define the stop options to stop Storage Mirroring transmissions by using either or both of the
following options.
 Time Limit—The time limit specifies the maximum length of time for each transmission
period. Any data that is not sent during the specified time limit remains on the source queue.
When used in conjunction with the session interval start option, you can explicitly define how
often data is transmitted and how long each transmission lasts. Specify the maximum length
of time that Storage Mirroring can continue transmitting by indicating a length of time and
choosing minutes, hours, or days.
 Byte Limit—The byte limit specifies the maximum number of bytes that can be sent before
ending the transmission session. When the byte limit is met, Storage Mirroring will
automatically stop transmitting data to the target. Any data that still remains waits in the
source queue until the transmission is restarted. When used in conjunction with a session start
option, you can explicitly define how much data is being sent at a given time. Specify the
m a x i m u m n u m b e r o f b y t e s t h a t c a n b e s e n t b e f o r e e n d i n g t h e S t o r a g e M i r r o r i n g t r a n s m i s s i o n .
NOTE: The transmission start and stop criteria should be used in conjunction with each
other. For example, if you set the Queue Threshold equal to 10 MB and the Byte
Limit equal to 10 MB, a network connection will be established when there is 10
MB of data in the queue. The data will be transmitted and when the 10 MB Byte
Limit is reached, the network connection closes. This is useful in configurations
where metered charges are based on connection time.