You can add a DS14/DS14mk2 FC disk shelf to a cluster that is made up of DS14/DS14mk2 FC disk shelves without powering down your cluster. This enables you to add disk shelves without a service interruption. However, you cannot add more disk shelves to your cluster than your cluster can support. See http://now.netapp.com for the amount of storage your cluster can support.
Caution
Hot-adding a disk shelf is different from hot-swapping a disk shelf. Hot-swapping a disk shelf, which means removing an existing disk shelf and installing a new one in its place, is not supported. Your system supports hot-adding of disk shelves only.
One FC-AL interface can connect up to a maximum of eight daisy-chained disk shelves (four for DS14 disk shelves) per FC-AL adapter. You must add an additional FC-AL adapter to each of your filers for every set of eight disk shelves you add, up to the maximum of FC-AL adapters supported by your filer. See the F800 Series Field Service Guide for FC-AL installation information.
See http://now.netapp.com for the maximum number of FC-AL adapters your filer supports.
The following table lists some of the restrictions for adding disk shelves to your cluster. See the DiskShelf14 and DiskShelf14mk2 FC Hardware Guide for a more detailed discussion of restrictions.
Note
See the System Configuration guide at http://now.netapp.com for additional restrictions.
To add storage to a cluster, complete the following steps.
| 1 |
Determine whether disk shelf counting is enabled by entering the following command: cf nfo status |
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| 2 | ||
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Go to Step 3. | ||
| 3 |
Install the new disk shelf in your equipment rack, as described in the DiskShelf14 and DiskShelf14mk2 FC Hardware Guide. |
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| 4 |
Verify that the new disk shelf ID is unique by entering the following command: fcstat device_map Result |
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| 5 |
If disk shelves in the loop to which you are adding the new disk shelf have... | |
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| 6 | ||
| 7 |
Cable the last disk shelf Channel A LRC, ESH, or ESH2 Output port to the new disk shelf Channel A LRC, ESH, or ESH2 Input port. Label the cable with a solid-colored label. |
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| 8 |
Cable the last disk shelf Channel B LRC, ESH, or ESH2 Output port to the new disk shelf Channel B LRC, ESH, or ESH2 Input port. Label this cable with a striped label. |
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| 9 | ||
| 10 |
Set both terminate switches on the previous disk shelf to Off. |
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| 11 | ||
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Part No. 210-00651
File: ch5_trb5.htm
Last updated: 04/05/04 17:01:07