Dell PowerVault MD1120 - Manual (Page 43)

Troubleshooting Your Enclosure
43
Troubleshooting Your Enclosure
Safety First—For You and Your Enclosure
To perform certain procedures in this document, you must work inside the
enclosure. While working inside the enclosure, do not attempt to perform
service except as explained in this guide and elsewhere in your
documentation.
CAUTION:
Only trained service technicians are authorized to remove the system
cover and access any of the components inside the system. Before you begin this
procedure, review the safety instructions that came with the system.
Start-Up Routine
Look and listen during the enclosure's start-up routine for the indications
described in Table 4-1. For a description of the front- and back-panel
indicators, see "About Your System" on page 7.
Troubleshooting a Loss of Communication
Condition
The following activities may cause loss of communication to occur:
• Installing or replacing an EMM while the server is online
• Downloading enclosure firmware
Table 4-1. Start-Up Routine Indications
Look/listen for: Action
A series of beeps emitted by the
enclosure. See "Enclosure Alarms" on page 20.
Alert messages. See the Server Administrator documentation.
An unfamiliar constant scraping or
grinding sound when you access a
physical disks. See "Getting Help" on page 53.