Management: Firmware Downloads 203
13
Click
OK
.
The
Confirm Download
dialog appears.
14
Click
Yes
.
The download starts and a progress indicator appears in the Status column of
the Upgrade RAID Controller Module Firmware window.
Downloading Physical Disk Firmware CAUTION: When updating physical disk firmware, you should stop all I/O activity
to the array to prevent data loss.
The physical disk firmware controls various features of the physical disk. The
disk array controller (DAC) uses this type of firmware. Physical disk firmware
stores information about the system configuration on an area of the physical
disk called DACstore. DACstore and the physical disk firmware enable easier
reconfiguration and migration of the physical disks. The physical disk
firmware performs these functions:
• The physical dis k firmware record s the location o f the physical d isk in an
expansion enclosure. If you take a physical disk out of an expansion
enclosure, you must insert it back into the same physical disk slot, or the
physical disk firmware cannot communicate with the RAID controller
module or other storage array components.
• RAID configuration information is stored in the physical disk firmware and
is used to communicate with other RAID components.
NOTE: Risk of application errors—Downloading the firmware could cause
application errors.
Keep these important guidelines in mind when you download firmware to
avoid the risk of application errors:
• Downloading firmware incorrectly could result in damage to the physical
disks or loss of data. Perform downloads only under the guidance of your
Technical Support representative.
• Stop all I/O to the storage array before the download.
book.book Page 203 Thursday, December 9, 2010 3:20 PM