Dell EqualLogic PS4110E PS4110 Hardware Owners Manual - Page 11

Maintaining Drives, About Drive Types, Identifying Failed Drives

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2 Maintaining Drives You can replace a failed drive while the array remains running. About Drive Types Depending on your configuration, your array supports up to 24 2.5-inch SAS drives or up to 12 3.5-inch SAS drives in internal drive bays. Drives are connected to a backplane through drive carriers and are hot-swappable. Drives are supplied in a carrier that is keyed to fit into specific array models, and cannot be installed in other Dell arrays, or arrays not from Dell Inc. Identifying Failed Drives A drive failure is indicated by: • LEDs on the drive. See Interpreting Drive LEDs on page 8. • A message on the console, in the event log, or in the Group Manager Alarms panel. • Indications in the Group Manager Member Disks window or the CLI member select show disks command output. Behind the bezel, arrays have a label showing the drive numbering for that specific array model: • In arrays with 2.5-inch drives (installed vertically in a row), the drives are numbered 0-23, left to right. • In arrays with 3.5-inch drives (installed horizontally), the drives are numbered from left to right and top to bottom, starting with 0 on the upper left side. Table 3 shows the drive order for the 3.5-inch drives. Table 3: 3.5-inch Drive Numbering 3.5-inch Drive Numbering 0 1 2 3 4 5 6 7 8 9 10 11 7

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2 Maintaining Drives
You can replace a failed drive while the array remains running.
About Drive Types
Depending on your configuration, your array supports up to 24 2.5-inch SAS drives or up to 12 3.5-inch SAS
drives in internal drive bays.
Drives are connected to a backplane through drive carriers and are hot-swappable.
Drives are supplied in a carrier that is keyed to fit into specific array models, and cannot be installed in other
Dell arrays, or arrays not from Dell Inc.
Identifying Failed Drives
A drive failure is indicated by:
•
LEDs on the drive. See
Interpreting Drive LEDs on page 8
.
•
A message on the console, in the event log, or in the Group Manager Alarms panel.
•
Indications in the Group Manager Member Disks window or the CLI
member select show disks
command
output.
Behind the bezel, arrays have a label showing the drive numbering for that specific array model:
•
In arrays with 2.5-inch drives (installed vertically in a row), the drives are numbered 0-23, left to right.
•
In arrays with 3.5-inch drives (installed horizontally), the drives are numbered from left to right and top to
bottom, starting with 0 on the upper left side.
Table 3
shows the drive order for the 3.5-inch drives.
Table 3: 3.5-inch Drive Numbering
3.5-inch Drive Numbering
0
1
2
3
4
5
6
7
8
9
10
11
7