Replacing hot-swap drives
Drive problems include any malfunctions that delay, interrupt, or prevent successful I/O activity between the hosts and the hard disk drives in the expansion unit. This includes transmission problems between the host controllers, the ESM boards, and the drives. This section explains how to replace a failed drive.
Attention: Failure to replace the drives in their correct bays might result in loss of data. If you are replacing a drive that is part of a RAID level 1 or RAID level 5 logical drive, ensure that you install the replacement drive in the correct bay.
Check the hardware and software documentation provided with your system to see if there are restrictions regarding hard disk drive configurations. Some system SCSI configurations might not allow mixing different drive capacities or types within an array.
To replace a
1.Determine the location of the drive that you want to remove.
Attention: Never hot swap a drive CRU when its green activity LED is flashing. Hot swap a drive CRU only when its amber fault LED is lit (not flashing) or when the drive is inactive (activity LED is off).
2.Remove the drive CRU.
a.Press on the inside of the bottom of the tray handle Þ Ýto release the blue latch Þ Ý.
b.Pull the handle Þ Ý on the tray Þ Ý out into the open position.
c.Lift the drive tray partially out of the bay.
d.To avoid possible damage to the drive Þ Ý, wait at least 20 seconds before fully removing the drive CRU from the expansion unit, to allow for the drive to spin down.
e.Verify that there is proper identification (such as a label) on the drive CRU, and then slide it completely out of the expansion unit.
3.Install the new drive CRU.
a.Gently push the drive CRU into the empty bay until the tray handle Þ Ý touches the expansion unit tray.
b.Push the tray handle Þ Ý down into the closed (latched) position.
20IBM Netfinity EXP300 - Type 3531 Hardware Maintenance Manual
