Hot-swap or replace an IOM12 module - shelves with IOM12
modules
Your system configuration determines whether you can perform a nondisruptive IOM12
module hot-swap or a disruptive IOM12 module replacement when an IOM12 module
fails.
Before you begin
All other components in the system—including the other IOM12 module—must be functioning properly.
About this task
• For multipathed (multipath HA or multipath) and quad-pathed (quad-path HA or quad-path) configurations,
you can hot-swap an IOM12 module (nondisruptively replace an IOM12 module in a system that is
powered on and serving data—I/O is in progress).
• For FAS2600 series and FAS2700 single-path HA configurations, you must perform a takeover and
giveback operation to replace an IOM12 module in a system that is powered on and serving data—I/O is in
progress.
• For FAS2600 series single-path configurations, you must halt your system to replace an IOM12 module.
If you attempt to hot-swap an IOM12 module on a disk shelf with a single-path connection,
you will lose all access to the disk drives on the disk shelf as well as any disk shelves
beneath. You could also bring down your entire system.
• The best practice is to have the current versions of disk shelf (IOM) firmware and disk drive firmware on
your system before adding new disk shelves, shelf FRU components, or SAS cables.
Current versions of firmware can be found on the NetApp Support Site.
NetApp Downloads: Disk Shelf Firmware
NetApp Downloads: Disk Drive Firmware
• Disk shelf (IOM) firmware is automatically updated (nondisruptively) on a new IOM12 module with a non
current firmware version.
IOM firmware checks occur every ten minutes. An IOM firmware update can take up to 30 minutes.
• If needed, you can turn on the disk shelf’s location (blue) LEDs to aid in physically locating the affected disk
shelf:
storage shelf location-led modify -shelf-name shelf_name -led-status on
A disk shelf has three location LEDs: one on the operator display panel and one on each IOM12 module.
Location LEDs remain illuminated for 30 minutes. You can turn them off by entering the same command,
but using the off option.
• If needed, you can refer to the Monitoring disk shelf LEDs section for information about the meaning and
location of disk shelf LEDs on the operator display panel and FRU components.
Steps
1. Properly ground yourself.
2. Unpack the new IOM12 module, and set it on a level surface near the disk shelf.
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