Chapter 8Modifying and Adding Disk Partitions
This chapter describes how to examine or modify the configuration
of a disk partition on the master-eligible nodes. Master-eligible nodes can
have more than one disk. The disk partitions discussed in this chapter pertain
to the disk that contains the cluster configuration. For more information
about disk partitioning, see "Volume Management" in the Netra High Availability Suite Foundation Services 2.1 6/03 Overview.
The disk on a dataless node is not used to store cluster data and is
not discussed in this chapter. For information about the initial disk configuration
of a dataless node, see the Netra High Availability Suite Foundation Services 2.1 6/03 Custom Installation Guide.
This chapter contains the following sections:
Using the format Utility to Display and Modify the
Configuration of a Disk Partition
This section describes how to use the format utility
to display and modify the configuration of a disk partition. For additional
information, see the format(1M) man page.
Before you change the configuration of a disk partition, you must stop
all the nodes in the cluster. If you change the size of a data partition on
one master-eligible node, you must change the size of the corresponding bitmap
partition on that disk. You must also change the size of the corresponding
data partition and bitmap partition on the other master-eligible node.
To Display the Configuration of a Disk Partition
Use this procedure to identify the name of each partition on a disk
and to determine whether a disk partition is big enough.
Log in to a master-eligible node as superuser.
Run the format utility:
Output similar to this is displayed in the console window:
Searching for disks...done
AVAILABLE DISK SELECTIONS:
0. c0t0d0 <SUN36G cyl 24620 alt 2 hd 27 sec 107>
/pci@1f,0/pci@1,1/scsi@2/sd@0,0
Specify disk (enter its number):
|
Choose the disk you want to examine: Specify disk (enter its number): 0
|
Output similar to this is displayed in the console window:
selecting c0t0d0
[disk formatted]
Warning: Current Disk has mounted partitions.
FORMAT MENU:
disk - select a disk
type - select (define) a disk type
partition - select (define) a partition table
current - describe the current disk
format - format and analyze the disk
repair - repair a defective sector
label - write label to the disk
analyze - surface analysis
defect - defect list management
backup - search for backup labels
verify - read and display labels
save - save new disk/partition definitions
inquiry - show vendor, product and revision
volname - set 8-character volume name
!<cmd> - execute <cmd>, then return
quit
|
Choose the partition option:
Output similar to this is displayed in the console window:
PARTITION MENU:
0 - change `0' partition
1 - change `1' partition
2 - change `2' partition
3 - change `3' partition
4 - change `4' partition
5 - change `5' partition
6 - change `6' partition
7 - change `7' partition
select - select a predefined table
modify - modify a predefined partition table
name - name the current table
print - display the current table
label - write partition map and label to the disk
!<cmd> - execute <cmd>, then return
quit
|
Display the configuration of the current disk partitions:
Output similar to this is displayed in the console window:
Current partition table (original):
Total disk cylinders available: 24620 + 2 (reserved cylinders)
Part Tag Flag Cylinders Size Blocks
0 root wm 0 - 1451 2.00GB (1452/0/0) 4194828
1 swap wu 1452 - 2177 1.00GB (726/0/0) 2097414
2 backup wm 0 - 24619 33.92GB (24620/0/0) 71127180
3 unassigned wm 2178 - 3629 2.00GB (1452/0/0) 4194828
4 unassigned wm 3630 - 3771 200.31MB (142/0/0) 410238
5 unassigned wm 3772 - 3772 1.41MB (1/0/0) 2889
6 unassigned wm 3773 - 3773 1.41MB (1/0/0) 2889
7 unassigned wm 0 0 (0/0/0) 0
|
Quit if you do not want to modify the size of a partition:
This output is displayed in the console window:
FORMAT MENU:
disk - select a disk
type - select (define) a disk type
partition - select (define) a partition table
current - describe the current disk
format - format and analyze the disk
repair - repair a defective sector
label - write label to the disk
analyze - surface analysis
defect - defect list management
backup - search for backup labels
verify - read and display labels
save - save new disk/partition definitions
inquiry - show vendor, product and revision
volname - set 8-character volume name
!<cmd> - execute <cmd>, then return
quit
|
You return to the console prompt, #.
|