The following table lists the tasks that you might need to perform to complete upgrade.
If your deployment includes a shared switch, you need to plan for and configure the gFilers to limit the number of commands (read and write requests) that the storage subsystem port must handle as a result of gFilers and non-gFiler hosts accessing the port through the switch; that is, you need to plan for limiting the target queue length. When multiple initiators are accessing a target port on the storage subsystem, you do not want the outstanding commands in the queue buffer, from all initiators together, to exceed 256. Otherwise, the performance of gFiler and non-gFiler hosts can suffer.
Beginning with Data ONTAP 5.0, on gFilers you use the disk.target_port.cmd_queue_depth option to set the number of commands that the gFiler can send to the target port on the data subsystem.
Non-gFiler hosts also provide a means for limiting the target queue length. See the documentation for the host for information about limiting target queue length.
Note
Target queue length might also be referred to as Q-Depth or Max Throttle.
You need to consider the impact of all the initiators on the port when you are planning the configuration for a specific gFiler or a specific non-gFiler host. If your deployment includes more than one initiator, you need to configure each initiator so that the total commands by all initiators does not exceed 256. The default for target queue depth value is 256.
Some guidelines for determining the appropriate target queue length are as follows:
Configure non-gFiler hosts according to the guidelines provided for those hosts.
To set the disk.target_port.cmd_queue_depth option, complete the following steps.
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Enter the following command at the Data ONTAP command line: disk.target_port.cmd_queue_depth <value> Do not use a value of 0 (zero) because it means no limit on the outstanding commands. |
You change the security style of a gFiler by changing the qtree security style of its root volume. The new security style applies to the root volume and is the default security style for subsequently created volumes and qtrees.
To change the security style of the root volume to mixed or to the NT file system (NTFS) to make it compatible with CIFS, complete the following step at the gFiler console.
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qtree security /vol/vol0/ security_style |
To enter new license codes, complete the following step from the gFiler console.
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Part No. 210-00662
File: ug_sw11.htm
Last updated: 04/12/04 17:11:48