Caution – Potential loss of data access – Never remove a
If a module fails and must be replaced, the Service Action Required LED on that module turns on to indicate that a service action is required. The Service Action Allowed LED also will turn on if it is safe to remove the module. If there are data availability dependencies or other conditions that dictate that a module should not be removed, the Service Action Allowed LED remains off.
The Service Action Allowed LED automatically turns on or turns off as conditions change. In most cases, the Service Action Allowed LED turns on when the Service Action Required (Fault) LED is turned on for a module.
Note – If the Service Action Required (Fault) LED is turned on but the Service Action Allowed LED is turned off for a particular module, you might have to service another component first. Check the Common Array Manager software Service Advisor to determine the action you should take.
Disk Drives
Disk drives for the Sun StorageTek 2500 Series Array have three components: a hard drive, a hard drive carrier, and an adapter card for connecting the disk drive to the midplane. The disk drives can be Serial Advance Technology Attachment (SATA) disk drives, Fibre Channel (FC) disk drives, or SAS disk drives.
Controller trays or drive expansion trays hold up to 12 disk drives, for a maximum of 36 disk drives in a storage array. To reach the maximum of 36 disk drives, the storage array must consist of one controller tray and two drive expansion trays.
Access to disk drives is from the front of the tray.
Refer to the storage array release notes for supported drives.
Note – The disk drives in your tray might differ in appearance from those shown here. The variation does not affect their function.
16 Sun StorageTek 2500 Series Array Hardware Installation Guide • March 2007