| Netra™ High Availability Suite 3.0 1/08 Foundation Services Cluster Administration Guide | 
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| C H A P T E R 9 |
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 3.0 1/08 Foundation Services 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 3.0 1/08 Foundation Services Manual Installation Guide for the Solaris OS.
This chapter contains the following sections:
Using the format Utility to Display and Modify the Configuration of a Disk Partition on a Solaris Node
Increasing the Size of a Replicated Data Partition on a Physical Disk on a Solaris Node
Increasing the Size of a Replicated Data Partition on a Virtual Disk on a Solaris Node
Adding a Mirrored Data Partition to a Virtual Disk on a Solaris Node
This section describes how to use the format utility to display and modify the configuration of a disk partition. For additional information, see the format1M 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.
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Use this procedure to identify the name of each partition on a disk and to determine whether a disk partition is big enough.
# format |
Output similar to the following 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 the following 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
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format> partition |
Output similar to the following 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
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Display the configuration of the current disk partitions:
partition> print |
Output similar to the following 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:
partition> quit |
The following 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 |
format> quit |
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Perform Step 1 through Step 5 of To Display the Configuration of a Disk Partition on a Solaris Node.
Specify the physical partition you want to modify.
Type the entry from the Part column that corresponds to this partition:
partition> Part-entry |
Information about the partition that you have chosen is displayed in the console window. For example, partition 3 produces the following output:
Part Tag Flag Cylinders Size Blocks 3 unassigned wm 2178 - 3629 2.00GB (1452/0/0) 4194828 |
When the format tool prompts you to change some of the parameters of the partition configuration, press Return to accept the existing configuration:
Enter partition id tag(unassigned): Enter partition permission flags[wn] Enter new starting cyl(2178): |
Change the size of the partition:
new-partition-size]: [4194828b, 1452c, 2048.26mb, 2.00gbEnter partition size |
Write the new partition layout to the disk:
partition> label |
Confirm that you want to change the partition size:
Ready to label disk, continue? y |
Verify that your modifications have been implemented:
partition> print |
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 |
format> quit |
This section describes how to increase the size of a replicated data partition on a physical disk.
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Log in to a cluster node and note which node is the master node and which node is the vice-master node.
# nhcmmstat -all |
For information, see To Shut Down a Cluster.
Log in to the original master node in single-user mode as superuser:
ok> boot -s |
Identify the name of the data partition that you want to modify.
For information, see To Display the Configuration of a Disk Partition on a Solaris Node.
Change the size of the data partition.
For information, see To Change the Size of a Disk Partition on a Master-Eligible Node on the Solaris OS.
Verify that the bitmap partition is the correct size.
Identify the name of the local bitmap partition associated with the chosen data partition.
For information, see To Display the Configuration of a Disk Partition on a Solaris Node.
Confirm that the bitmap partition is at least the following size:
1 Kbyte + 4 Kbytes per Gbyte of data in the associated data partition
If the bitmap partition is not big enough, increase the size of this partition, as described in To Change the Size of a Disk Partition on a Master-Eligible Node on the Solaris OS.
Restore the data on the partition using the ufsrestore command.
Reset the replication configuration on the master node:
# /opt/SUNWesm/SUNWrdc/sbin/sndradm -d Disable Remote Mirror? (Y/N) [N]: Y # |
# /usr/sbin/sndradm -d Disable Remote Mirror? (Y/N) [N]: Y # |
Log in to the old vice-master node in single-user mode, as superuser:
ok> boot -s |
Change the size of the data partition by repeating Step 5 through Step 7.
Reset the replication configuration on the vice-master node by repeating Step 9 and Step 10.
Reboot the original master node as described in To Perform a Clean Reboot of a Solaris OS Node.
When the master node has booted fully, reboot the original vice-master node as described in To Perform a Clean Reboot of a Solaris OS Node.
Verify that the vice-master node is synchronized with the master node:
For versions earlier than the Solaris 10 OS:
# /usr/opt/SUNWesm/sbin/scmadm -S -M |
For the Solaris 10 OS and later:
# /usr/sbin/dsstat 1 |
Restart the diskless and dataless nodes.
For information, see To Restart a Node.
Verify that the nodes have the correct configuration:
# nhadm check |
This section describes how to increase the size of a replicated data partition created by the Solaris Volume Manager. This replicated partition is called a soft partition. Perform this procedure to facilitate back up or to increase the partition size available to services or applications.
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Log in to a cluster node and note which node is the master node and which node is the vice-master node:
# nhcmmstat -all |
For information, see To Shut Down a Cluster.
Log in to the original master node in single-user mode as superuser:
ok> boot -s |
For example, mount dsk/d20 on home2, as follows:
# mount /dev/md/dsk/d20 /home2 |
Add space to the virtual disk.
For example, add 10 Gbytes to the d20 device:
# metattach d20 10g |
For more information about virtual disks, see the Solaris Volume Manager Administration Guide.
Grow the file system to its new size:
# growfs -M /home2 /dev/md/rdsk/d20 |
Verify that the bitmap partition is the correct size.
Identify the name of the local bitmap partition associated with the chosen data partition.
For information, see To Display the Configuration of a Disk Partition on a Solaris Node.
Confirm that the bitmap partition is at least the following size:
1 Kbyte + 4 Kbytes per Gbyte of data in the associated data partition
If the bitmap partition is not big enough, increase the size of this partition as described in To Change the Size of a Disk Partition on a Master-Eligible Node on the Solaris OS.
Reset the replication configuration:
# /opt/SUNWesm/SUNWrdc/sbin/sndradm -d Disable Remote Mirror? (Y/N) [N]: Y # |
# /usr/sbin/sndradm -d Disable Remote Mirror? (Y/N) [N]: Y # |
Log in to the original vice-master node in single-user mode, as superuser:
ok> boot -s |
Reboot the master node as described in To Perform a Clean Reboot of a Solaris OS Node.
When the master node has fully booted, reboot the vice-master node as described in To Perform a Clean Reboot of a Solaris OS Node.
Verify that the vice-master node is synchronized with the master node:
For versions earlier than the Solaris 10 OS:
# /usr/opt/SUNWesm/sbin/scmadm -S -M |
For the Solaris 10 OS and later:
# /usr/sbin/dsstat 1 |
Restart the diskless nodes or dataless nodes.
For information, see To Restart a Node.
Confirm that the nodes have the correct configuration:
# nhadm check |
This section describes how to add a mirrored data partition
to your disk configuration. To configure a virtual disk on the master-eligible
nodes, you must include Solaris Volume Manager or the Solstice DiskSuite
in the initial cluster configuration.
For information about configuring Solaris Volume Manager, see the Netra High Availability Suite 3.0 1/08 Foundation Services Manual Installation Guide for the Solaris OS.
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For information, see To Shut Down a Cluster.
Log in to a master-eligible node in single-user mode as superuser:
ok> boot -s |
Create two virtual disk partitions: one data partition and one bitmap partition.
Format the disk to include the configuration information for the two new partitions.
Ensure that the partition is replicated by adding the RNFS.Slice parameter for the new soft partition to the nhfs.conf file.
RNFS.Slice = slice-description |
Add the RNFS.Slice parameter for the new partitions to the nhfs.conf file.
The RNFS.Slice parameter is used to replicate the partition.
Repeat Step 2 through Step 6 for the second master-eligible node.
The changes you make must be identical on both master-eligible nodes.
For information, see To Restart a Cluster.
Verify that the vice-master node is synchronized with the master node:
For versions earlier than the Solaris 10 OS:
# /usr/opt/SUNWesm/sbin/scmadm -S -M |
For the Solaris 10 OS and later:
# /usr/sbin/dsstat 1 |
If the vice-master node is not synchronized with the master node, resynchronize it:
# nhcrfsadm -f all |
Confirm that the nodes have the correct configuration:
# nhadm check |
| Netra™ High Availability Suite 3.0 1/08 Foundation Services Cluster Administration Guide | 819-5235-13 |
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Copyright © 2008, Sun Microsystems, Inc. All rights reserved.
To Display the Configuration
of a Disk Partition on a Solaris Node