SCF Reference Manual for the Storage Subsystem (G06.28+, H06.05+, J06.03+)

Considerations for ALTER DISK and Disks
• To change these attributes, first put the disk in the STOPPED state by using the “STOP DISK
Command” (page 290):
PRIMARYLOCATIONMBACKUPLOCATIONALTNAME
PRIMARYLUNMBACKUPPORTNAMEAUDITTRAILBUFFER
PRIMARYPARTITIONMBACKUPSACBACKUPDEVICEID
PRIMARYPORTNAMEMIRRORDEVICEIDBACKUPCPU
PRIMARYSACMIRRORLOCATIONBACKUPDEVICEID
PROTECTDIRECTORYMIRRRORLUNBACKUPLOCATION
PROGRAMMIRRORPARTITIONBACKUPPORTNAME
SERIALWRITESMIRRORPORTNAMEBACKUPSAC
SQLMXBUFFERMIRRORSACHIGHPIN
VOLNAMEPRIMARYCPULABEL
PRIMARYDEVICEIDMBACKUPDEVICEID
• If a nonmirrored disk is in STARTED state, you can add a mirror drive by altering the
appropriate MIRROR and MBACKUP path attributes.
• When changing these attributes, the IOP is not forced to stop:
NUMDISKPROCESSESLKIDLONGPOOLLENCAPACITYMISMATCH
OSSCACHINGLKTABLESPACELENCBPOOLLEN
RECOVERYTIMEOUTMAXLOCKSPEROCBFASTBULKWRITE
WRITECACHEMAXLOCKSPERTCBFSTCACHING
NONAUDITEDINSERTHALTONERROR
• To change the VOLNAME or ALTNAME attributes, see “Naming a Disk” (page 88).
• When specifying attributes to add a physical volume to a storage pool:
The pool process and CATALOGLOCATION volume must be in the STARTED state.◦
◦ The CATALOGLOCATION volume must be protected by TMF.
◦ When using the AUTOSELECT and PHYSVOLSELECT attributes:
◦ The pool process and CATALOGLOCATION volume must both be in the STARTED state.
◦ The CATALOGLOCATION volume must be enabled by TMF.
◦ The physical volume must be in the STARTED state.
Changing the Values of the Attributes for Disks
1. Display detailed information about the configured attributes of the disk you want to alter:
-> INFO $DATA00, DETAIL
Displayed fields are defined under “Example 2: A Detailed INFO Report for a Disk” (page 49).
An asterisk (*) indicates the attributes you can alter.
Altering Disk Attribute Values 85