Create snapshot virtual disk, Description – Dell PowerVault MD3260i User Manual

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startTime

The time of a day you want to create a snapshot (legacy) virtual disk and start performing a
copy-on-write operation. The format for entering the time is HH:MM, where HH is the hour and
MM is the minute past the hour. Use a 24-hour clock. For example: startTime=14:27,
which corresponds to 2:27 PM.

scheduleInte
rval

Amount of time, in minutes, that defines a minimum between two copy-on-write operations. It
is possible for you to create a schedule in which you have overlapping copy-on-write
operations because of the duration of a copy operation. You can ensure that copy-on-write
operations maintain a correct interval by using this option. The maximum value for the
scheduleInterval option is 1440 minutes. For example: scheduleInterval=180.

endDate

Specific date to stop creating a snapshot (legacy) virtual disk and end the copy-on-write
operations. The format for entering the date is MM:DD:YY, where MM is the month, DD the day
and YY the year. For example: endDate=11:26:11.

timesPerDay

The number of times you want the snapshot schedule to run in a day. For example,
timesPerDay=4.

timeZone

Use this parameter to define the time zone in which the storage array is operating. You can
define the time zone in one of two ways:

GMT±HH:MM—The time zone offset from Greenwich Mean Time (GMT), in hours and

minutes. For example, GMT-06:00 is the central time zone in the United States.

Text string—A standard time zone text string, in quotation marks. For example,

"USA/Chicago" or "Germany/Berlin". Time zone text strings are case sensitive. If you

enter an incorrect text string GMT is used.

The code string for defining a schedule is similar to these examples:
enableSchedule=true schedule startTime=14:27

enableSchedule=true schedule scheduleInterval=180

enableSchedule=true schedule timeZone=GMT-06:00

enableSchedule=true schedule timeZone="USA/Chicago"

If you also use the scheduleInterval option, the lowest value of the timesPerDay option and the
scheduleInterval option is used. The firmware calculates an integer value for the scheduleInterval option
by dividing 1440 by the scheduleInterval option value that you set. For example, 1440/180 = 8. The firmware then
compares the timesPerDay integer value with the calculated scheduleInterval integer value and uses the
smaller value.
To remove a schedule, use the delete virtualDisk command with the schedule parameter. The delete
virtualDisk command with the schedule parameter deletes only the schedule, not the snapshot (legacy) virtual
disk.

Create Snapshot Virtual Disk

Description

This command creates a snapshot virtual disk for snapshot images of a base virtual disk. You can assign the new
snapshot virtual disk to an existing repository disk group or disk pool, or you can create a new repository disk group or
disk pool if one does not already exist.

NOTE: You cannot use this command for a snapshot image that is used in online virtual disk copy.

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