HP StorageWorks Storage Mirroring Scripting Guide (T2558-96327, April 2009)

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2. With a scheduled bandwidth limit, data will be transmitted according to the user-specified
schedule and the user-specified bandwidth configuration. Implementing a schedule requires
several steps and DTCL commands. Create a scheduled event using the
limit bandwidth
schedule add
command.
3. Repeat the limit bandwidth schedule add command to create a comprehensive
bandwidth schedule. For example, if you want to limit Storage Mirroring bandwidth usage
weekdays (Monday - Friday) from 6:00 a.m. to 8:00 p.m. and have unlimited bandwidth usage
outside of those times, you would create two events. The first event would be for Monday
through Friday, would start at 6:00 a.m., and would limit the bandwidth to the desired rate. The
second event would be Monday through Friday, would start at 8:00 p.m., and would not limit the
bandwidth. (To create an unlimited event, set the limit option to the keyword UNLIMITED.) In
this schedule, on Monday at 6:00 a.m., the schedule limit would be applied, limiting the transfer
of data. At 8:00 p.m. that night, the schedule limit would be applied again, unlimiting the
transfer of data. At 6:00 a.m. Tuesday morning, the schedule would be applied again. This would
continue until the Friday 8:00 p.m. schedule is applied. That event would remain in effect until
Monday morning at 6:00 a.m.
Command LIMIT BANDWIDTH SCHEDULE ADD
Description Creates a scheduled bandwidth event for limiting transmission of data from
the source to the target
Syntax
LIMIT BANDWIDTH SCHEDULE ADD <label>
DAYS=<
day1>[, day2,..., dayN] STARTTIME=<hh:mm>
LIMIT=<
bytes>, <seconds> | UNLIMITED TO <target>
Options
 label—Unique name that identifies this bandwidth scheduling event
 day1, day2,..., dayN—Day(s) of the week that you want to schedule the
bandwidth limitation for. You can either spell out the entire day or use just
the first two letters of the day.
 hh:mm—Time, using a 24-hour clock, to indicate when this event will
start
 bytes—Number of bytes to be transmitted
 seconds—Number of seconds to wait before transmitting again
 UNLIMITED—Bandwidth is not limited during this scheduled event
 target—Name of the target, an IP address on the target, or a virtual IP
address. Depending on the network route Storage Mirroring uses to
access the target, you may need to specify the fully qualified domain
name.
Examples
 limit bandwidth schedule add weekday days=Mo, Tu, We,
Th, Fr starttime=06:00 limit=19300 5 to beta
 limit bandwidth schedule add weekend days=Sa, Su
starttime=04:00 limit=unlimited to beta
Notes
 This command transmits in bursts, not bytes per seconds. The time
identifies how long to wait before transmitting again. For example, if 5
seconds are specified and it only takes 2 seconds to send the specified
bytes, Storage Mirroring will wait an additional 3 seconds before
transmitting again.
 Options that contain non-alphanumeric characters must be enclosed in
quotation marks.