Dell PowerVault MD3220 - Manual (Page 198)

198 Management: Firmware Downloads
NOTE: If you click Stop while a firmware download is in progress, the
download-in-progress finishes before the operation stops. The status for the
remaining expansion enclosures changes to Canceled.
7 Monitor the progress and completion status of the download to the
expansion enclosures. The progress and status of each expansion enclosure
that is participating in the download is displayed in the Status column of
the Select enclosures table.
NOTE: Each firmware download can take several minutes to complete.
8 Perform one of these actions depending on whether the download
succeeded:
• The download succeeded – The statuses of all the expansion
enclosures show Complete. You can close the Download
environmental (EMM) Card Firmware dialog by clicking Close. The
expansion enclosure EMM cards are now operating with the new
firmware.
• The download failed – The status of one expansion enclosure shows
Failed and the remainder of the expansion enclosures show Canceled.
Make sure that the new firmware file is compatible before attempting
another firmware download.
Self-Monitoring Analysis and Reporting
Technology (SMART)
Self-Monitoring Analysis and Reporting Technology (SMART) monitors the
internal performance of all physical disk components to detect faults
indicating the potential for physical disk failure. SMART uses this
information to report whether failure is imminent so that a physical disk can
be replaced before failure occurs. The RAID controller monitors all attached
drives and notifies users when a predicted failure is reported by a physical
disk.
Media Errors and Unreadable Sectors
If the RAID controller detects a media error while accessing data from a
physical disk that is a member of a disk group with a redundant RAID level
(RAID 1, RAID 5 or RAID 10), the controller tries to recover the data from
peer disks in the disk group and uses recovered data to correct the error. If the
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