DELL MD3220 사용자 설명서

Management: Firmware Downloads

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 disk firmware records the location of the physical disk 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.

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.
• Make sure that the firmware that you download to the physical disks are 

compatible with the physical disks that you select.

• Do not make any configuration changes to the storage array while 

downloading the firmware. 

Downloads can take several minutes to complete. During a download, the 

Download Physical Disk - Progress dialog appears. Do not attempt another 

operation when the Download Physical Disk - Progress dialog is shown.

book.book  Page 183  Monday, June 21, 2010  11:00 AM