Administrator Guide

CAUTION: Risk of possible loss of data or risk of damage to the storage array—Downloading the expansion enclosure
EMM firmware incorrectly could result in loss of data or damage to the storage array. Perform downloads only under the
guidance of your Technical Support representative.
CAUTION: Risk of making expansion enclosure EMM unusable—Do not make any configuration changes to the storage
array while downloading expansion enclosure EMM firmware. Doing so could cause the firmware download to fail and
make the selected expansion enclosure unusable.
1. In the AMW, select Upgrade > EMM Firmware.
The Download Environmental (EMM) Card Firmware dialog is displayed.
2. In the Select enclosures area, either select each expansion enclosure to which you want to download firmware, or select the Select
All option to select all of the expansion enclosures in the storage array.
Each selected expansion enclosure must have the same product ID.
3. Click Select File to select the EMM firmware file.
The Select Environmental (EMM) Card Firmware File dialog is displayed.
4. Select the file to download, and click OK.
5. Click Start.
6. Click Yes to continue with the firmware download.
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 physical disks 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 controller encounters an error while accessing a peer disk, it is unable to recover the data and affected sectors
are added to the unreadable sector log maintained by the controller. Other conditions under which sectors are added to the unreadable
sector log include:
• A media error is encountered when trying to access a physical disk that is a member of a nonredundant disk group (RAID 0 or
degraded RAID 1, RAID 5 or RAID 10).
• An error is encountered on source disks during rebuild.
NOTE: Data on an unreadable sector is no longer accessible.
Management firmware downloads 153