IBM System Storage Subsystem DS5020 - Manual (Page 6)

Power and site wiring requirements . . . . . . . . . . . . . . . 23
Heat output, airflow, and cooling . . . . . . . . . . . . . . . . . 24
Chapter 2. Installing the storage subsystem . . . . . . . . . . . . . 27
Installation overview . . . . . . . . . . . . . . . . . . . . . . . 27
Handling static-sensitive devices . . . . . . . . . . . . . . . . . . 29
Preparing for installation
. . . . . . . . . . . . . . . . . . . . . 29
Tools and hardware required . . . . . . . . . . . . . . . . . . . 31
Preparing the site . . . . . . . . . . . . . . . . . . . . . . . 31
Preparing the rack cabinet. . . . . . . . . . . . . . . . . . . . 32
Installing the support rails . . . . . . . . . . . . . . . . . . . . . 32
Installing the DS5020
. . . . . . . . . . . . . . . . . . . . . . 36
Removing the CRUs . . . . . . . . . . . . . . . . . . . . . . 36
Removing a controller . . . . . . . . . . . . . . . . . . . . 37
Removing an ac power supply and fan unit
. . . . . . . . . . . . 38
Removing an E-DDM . . . . . . . . . . . . . . . . . . . . 39
Installing the DS5020 into a rack on the support rails . . . . . . . . . . 40
Replacing the components
. . . . . . . . . . . . . . . . . . . 42
Replacing a controller . . . . . . . . . . . . . . . . . . . . 42
Replacing an ac power supply and fan unit
. . . . . . . . . . . . 43
Replacing an E-DDM . . . . . . . . . . . . . . . . . . . . 44
Chapter 3. Cabling the storage subsystem. . . . . . . . . . . . . . 45
Enclosure ID settings
. . . . . . . . . . . . . . . . . . . . . . 45
Fibre Channel loop and ID settings . . . . . . . . . . . . . . . . . 46
Working with SFPs and fiber-optic cables . . . . . . . . . . . . . . . 46
Handling fiber-optic cables . . . . . . . . . . . . . . . . . . . 47
Installing SFP modules . . . . . . . . . . . . . . . . . . . . . 48
Removing SFP modules
. . . . . . . . . . . . . . . . . . . . 50
Using LC-LC Fibre Channel cables . . . . . . . . . . . . . . . . 51
Connecting an LC-LC cable to an SFP module . . . . . . . . . . . 52
Removing an LC-LC Fibre Channel cable . . . . . . . . . . . . . 54
Connecting storage expansion enclosures to the DS5020 . . . . . . . . . 54
Redundant drive channel pair . . . . . . . . . . . . . . . . . . 55
Overview of steps to connect storage expansion enclosures to a storage
subsystem. . . . . . . . . . . . . . . . . . . . . . . . . 56
DS5020 storage subsystem drive cabling topologies . . . . . . . . . . 57
One DS5020 and one storage expansion enclosure . . . . . . . . . 59
One DS5020 and two storage expansion enclosures . . . . . . . . . 60
One DS5020 and three storage expansion enclosures . . . . . . . . 62
One DS5020 and four storage expansion enclosures . . . . . . . . . 63
One DS5020 and up to six storage expansion enclosures . . . . . . . 64
One DS5020 and two or more storage expansion enclosures in a mixed
configuration . . . . . . . . . . . . . . . . . . . . . . . 66
DS5020 storage subsystem and supported storage expansion enclosure drive
cabling schemes . . . . . . . . . . . . . . . . . . . . . . 67
DS5020 storage subsystem drive cabling rules . . . . . . . . . . . 67
One DS5020 and one EXP520 storage expansion enclosure . . . . . . 70
One DS5020 and two EXP520 storage expansion enclosures. . . . . . 71
One DS5020 and three or more EXP520 storage expansion enclosures
72
Storage expansion enclosure settings . . . . . . . . . . . . . . . 78
Fibre Channel loop and ID settings . . . . . . . . . . . . . . . 78
Storage expansion enclosure ID settings . . . . . . . . . . . . . 78
Connecting secondary interface cables . . . . . . . . . . . . . . . . 78
Configuring the storage subsystem
. . . . . . . . . . . . . . . . . 79
Storage subsystem management methods . . . . . . . . . . . . . . 80
iv IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide