IBM TotalStorage DS300 Best Practices Manual page 193

1. Open a Telnet session to on of the management ports of the TotalStorage
DS300 or DS300.
2. The show license command informs about the maximum number of
SnapShots that can be used.
DS300-1[A]# show license
----------------------------------------------------------------
Output for 'license'
----------------------------------------------------------------
----[ License key ]---------------------------------------------
ABCD-EFGH-IJKL-MNOP-TUVW-XYZ4
Enabled Features:
Number of snapshots: 4
Enabled external channels: 0
Maximum drive count: 14
DS300-1[A]#
Figure 4-155 Show license information
3. Create a snapshot from the logical drive DANUBE-MAIL and call the
SnapShot target logical drive DANUBE-MAIL-S1. The example below does
not define an initiator which will access the SnapShot target logical drive. This
can be done later or by adding the initiator aliases behind the command.
Note: It is important that your data is in a consistent state and no I/O is
sent to the Flashcopy source logical drive. This can be archived by shutting
down the system. This will disconnect the initiators from the logical drive.
Other options are possible depending on the usage of the logical drive and
the used application. Stopping I/O to a logical drive from which it is booted,
for example, is not possible from the operating system.
Chapter 4. TotalStorage DS300 and DS400 management
175