SCF Reference Manual for the Storage Subsystem (G06.24+, H06.03+)

Disk Load Balancing
SCF Reference Manual for the Storage Subsystem—529937-007
8-15
Establishing a Disk Load Balance in RVUs Prior to
G06.11
7. The status shows all primary processes in processor 2:
-> STATUS $D02*-*
8. Now balance the disk work load across fabrics: switch the disk paths to ensure that
all four SACs are used for I/O operations. These SWITCH commands force half
the disk processes to use different paths to access the same disk:
-> SWITCH ($D0201-P, $D0201-M)
-> SWITCH ($D0203-B, $D0203-MB)
-> SWITCH ($D0205-P, $D0205-M)
-> SWITCH ($D0207-B, $D0208-B)
STORAGE - Status DISK \WAGER.$D0201-*
LDev Path Status State Substate Primary Backup
PID PID
104 PRIMARY ACTIVE STARTED 2,107 3,35
104 BACKUP INACTIVE STARTED 2,107 3,35
104 MIRROR ACTIVE STARTED 2,107 3,35
104 MIRROR-BACKUP INACTIVE STARTED 2,107 3,35
STORAGE - Status DISK \WAGER.$D0203-*
LDev Path Status State Substate Primary Backup
PID PID
105 PRIMARY ACTIVE STARTED 2,22 3,16
105 BACKUP INACTIVE STARTED 2,22 3,16
105 MIRROR ACTIVE STARTED 2,22 3,16
105 MIRROR-BACKUP INACTIVE STARTED 2,22 3,16
STORAGE - Status DISK \WAGER.$D0205-*
LDev Path Status State Substate Primary Backup
PID PID
105 PRIMARY ACTIVE STARTED 2,112 3,45
105 BACKUP INACTIVE STARTED 2,112 3,45
105 MIRROR ACTIVE STARTED 2,112 3,45
105 MIRROR-BACKUP INACTIVE STARTED 2,112 3,45
STORAGE - Status DISK \WAGER.$D0207-*
LDev Path Status State Substate Primary Backup
PID PID
112 PRIMARY ACTIVE STARTED 2,118 3,237
112 BACKUP INACTIVE STARTED 2,118 3,237
STORAGE - Status DISK \WAGER.$D0208-*
LDev Path Status State Substate Primary Backup
PID PID
114 PRIMARY ACTIVE STARTED 2,122 3,86
114 BACKUP INACTIVE STARTED 2,122 3,86