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5.
Maintenance/Expansion
Hot Swap/Hot Expansion
"Hot swap" refers to the replacement of components or updating of the firmware while the system is running.
"Hot expansion" refers to the addition of components while the system is running.
ETERNUS AF150 S3
The table below shows whether hot swap or hot expansion for components of the ETERNUS AF150 S3 is possible.
Table 71
Hot Swap and Hot Expansion Availability for Components (ETERNUS AF150 S3)
Component
Controller enclosure (CE)
Controller module (CM)
System memory
BBU
BUD
Controller firmware
Host interface (FC-CA)
Host interface (10G iSCSI-CA)
Power supply unit (PSU)
SSD
Operation panel (PANEL)
Disk firmware
¡: Allowed / ´: Not allowed (cold swap is possible) / —: Not applicable
*1: Mid Plane. This is a board that is located between the front (drive side) and rear (controller (CM) or I/O module (IOM) side) of the
ETERNUS AF.
*2: All of the host interfaces on the CM that will have maintenance or expansion performed go offline. When a multipath configuration is
used, switch to the host paths of the CM that will not have maintenance performed to continue operation.
*3: Depending on the changes in the firmware, this function may require I/Os to be temporarily stopped.
*4: Operation can be continued during a failure. The status of the ETERNUS AF can be monitored via ETERNUS Web GUI or ETERNUS CLI.
■
User Maintenance
Customers can update the following components.
To maintain components that are not described in this section, contact your sales representative or maintenance
engineer.
•
Controller firmware
Hot swap
Hot expansion
´
—
¡ (*2)
—
¡ (*2)
—
—
¡ (*2)
¡ (*2)
—
¡ (*2) (*3)
—
¡ (*2)
¡ (*2)
¡ (*2)
¡ (*2)
—
¡
¡
¡
´ (*4)
—
¡ (*3)
—
186
Remarks
Replace the controller enclosure (CE)
when the MP (*1) fails.
—
—
—
—
—
—
—
—
—
—
—
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