Releasing and locking a component lever . . . . . . . . . . . . . .37
Removing the components . . . . . . . . . . . . . . . . . . .39
Installing the DS4800 on the support rails . . . . . . . . . . . . . .41
Replacing the components . . . . . . . . . . . . . . . . . . .43
Chapter 3. Cabling the storage subsystem . . . . . . . . . . . . . .47
Working with SFPs and fiber-optic cables . . . . . . . . . . . . . . .47
Handling fiber-optic cables . . . . . . . . . . . . . . . . . . .48
Installing SFP modules . . . . . . . . . . . . . . . . . . . . .48
Removing SFP modules . . . . . . . . . . . . . . . . . . . .50
Installing fiber-optic cables . . . . . . . . . . . . . . . . . . .51
Using LC-LC fibre-channel cables . . . . . . . . . . . . . . . . .52
Connecting an LC-LC cable to an SFP module . . . . . . . . . . .53
Removing an LC-LC fibre-channel cable . . . . . . . . . . . . .55
Using LC-SC fibre-channel cable adapters . . . . . . . . . . . . . .55
Connecting an LC-SC cable adapter to a device . . . . . . . . . .56
Removing an LC-LC cable from an LC-SC cable adapter . . . . . . .58
Connecting storage expansion enclosures to the DS4800 . . . . . . . . .59
DS4800 Storage Subsystem drive cabling topologies . . . . . . . . . .69
One DS4800 and one storage expansion enclosure . . . . . . . . .70
One DS4800 and two storage expansion enclosures . . . . . . . . .71
One DS4800 and four storage expansion enclosures . . . . . . . . .72
One DS4800 and eight storage expansion enclosures . . . . . . . .73
One DS4800 and fourteen EXP810 storage expansion enclosures . . . .74
One DS4800 and sixteen EXP710 storage expansion enclosures . . . .75
One DS4800 to seven EXP810 and eight EXP710 storage expansion
enclosures . . . . . . . . . . . . . . . . . . . . . . . .75
Cabling the storage expansion enclosures to a DS4800 storage subsystem 76
Storage expansion enclosure settings . . . . . . . . . . . . . . .77
Fibre channel loop and ID settings . . . . . . . . . . . . . . . .78
DS4000 storage expansion enclosure ID settings . . . . . . . . . .78
Connecting hosts to the DS4800 . . . . . . . . . . . . . . . . . .79
Connecting secondary interface cables . . . . . . . . . . . . . . . .81
Configuring the storage subsystem . . . . . . . . . . . . . . . . .82
Storage subsystem management methods . . . . . . . . . . . . . .82
Host-agent (in-band) management method . . . . . . . . . . . . .82
Direct (out-of-band) management method . . . . . . . . . . . . .83
Fibre channel connections . . . . . . . . . . . . . . . . . . . .84
Fibre channel host loop configurations . . . . . . . . . . . . . . .84
Redundant host and drive loops . . . . . . . . . . . . . . . .85
Installing the storage subsystem configuration . . . . . . . . . . . . .88
Connecting the power cables . . . . . . . . . . . . . . . . . . . .88
Chapter 4. Operating the storage subsystem . . . . . . . . . . . . .93
Performing the DS4000 Health Check process . . . . . . . . . . . . .94
Web pages . . . . . . . . . . . . . . . . . . . . . . . . .95
Hardware responsibilities . . . . . . . . . . . . . . . . . . . .95
Removing and replacing the front bezel . . . . . . . . . . . . . . . .96
Turning the storage subsystem on and off . . . . . . . . . . . . . . .96
Turning on the storage subsystem . . . . . . . . . . . . . . . . .97
Turning off the storage subsystem . . . . . . . . . . . . . . . . 100
Restoring power after an unexpected shutdown . . . . . . . . . . . . 102
Performing an emergency shutdown . . . . . . . . . . . . . . . 103
Restoring power after an emergency shutdown . . . . . . . . . . . 103
Responding to the audible alarm . . . . . . . . . . . . . . . . . . 105
Installing the DS4000 Storage Manager client . . . . . . . . . . . . . 106
x IBM System Storage DS4800 Storage Subsystem: Installation, Userās, and Maintenance Guide