Disaster Recovery - Solaris File System

Planning for a Disaster Recovery

Before you begin a disaster recovery, make sure to do the following:

Perform regular backups of the Solaris file system. These backups can be scheduled to run at convenient intervals.
Ensure that the destination client is same as source client while performing a disaster recovery.
Make sure to Install the Solaris Operating System on the system that you want to restore. Make sure to install the Operating System exactly as it existed prior to a hardware or software corruption problem.
The client computer must have a default install partition with the Solaris File System iDataAgent installed on it. Make sure to enable the Networking option. The TCP/IP, hostname, and domain name settings of the default install must match those of the system that you are restoring.
Create and mount a root file system on the system that you want to restore.

Rebuilding the Operating System

1.	From the Solaris Installation disk, navigate to the appropriate Tools directory.	Example: s0/Solaris_<ver>/Tools directory
2.	Type the command to copy the jump start software to your machine	./setup_install_server -b /opt/boot
3.	Type the appropriate command to add each client that you want to boot off of the jump start server.	Example: ./add_* -i 172.19.71.226 -e 8:0:20:7c:89:1a -s pluto8:/jumpstart pluto6 sun4u ./add_* -i 172.19.71.227 -e 8:0:20:7d:e6:33 -s pluto8:/jumpstart pluto7 sun4m ./add_* -i 172.19.71.224 -e 8:0:20:7c:73:f -s pluto8:/jumpstart pluto4 sun4m
4.	Copy <mnt_point>/Solaris_<ver>/Tools/Boot from the disk to a shareable directory	Example: /jumpstart
5.	Modify bootparams to reflect the new root directory	/etc/bootparams
6.	Modify the hosts to add the hosts needed to communicate with the Solaris File System iDataAgent	Example: <mnt_point>/Solaris_<ver>/Tools/Boot/.tmp_proto/root/etc/inet/hosts
7.	Add the shared memory information to system	Example: <mnt_point>/Solaris_<ver>/Tools/Boot/etc/system set shmsys:shminfo_shmmax=4199304 set shmsys:shminfo_shmmin=1 set shmsys:shminfo_shmmni=5824 set shmsys:shminfo_shmseg=5824 set semsys:seminfo_semmns=5824 set semsys:seminfo_semmni=5824 set semsys:seminfo_semmsl=5824
8.	Add System Services.	Example: <mnt_point>/Solaris_<ver>/Tools/Boot/etc/services cvd 8400/tcp EvMgrS 8401/tcp EvMgrC 8402/tcp
9.	Create symbolic links for required writeable areas.	Example: ln -s ../tmp/root/etc/inet/Galaxy.pkg Galaxy.pkg ln -s /tmp/CommVaultRegistry CommVaultRegistry
10.	Restart the computer.
11.	Create and mount a /opt file system using an open slice.	Example: swap slice
12.	Install the Solaris File System iDataAgent software. If the installer requests updates and the required updates have not been installed on the jump start server, skip the request to add the additional operating system updates.
13.	Type the command to create partitions/slices on the disk.	format
14.	Type the command to create the root file system. newfs /dev/dsk/<DriveID> where <DriveID> is the Drive Identifier of the partition where you want to create the root file system.	Example: newfs /dev/dsk/<root>
15.	Type the command to mount the new root file system at /mnt. mount /dev/dsk/<DriveID> /mnt where <DriveID> is the Drive Identifier of the partition containing the root file system.	Example: mount /dev/dsk/<root> /mnt
16.	Create an empty directory called "proc" on /mnt	Example: mkdir /mnt/proc
17.	If you have recreated any file systems other than root, type the command to mount these as well. mkdir /mnt/<file_system_name> mount /dev/dsk/<DriveID> /mnt/<file_system_name> where <file_system_name> is the name of the file system and <DriveID> is the Drive Identifier of the partition containing the file system.	Example: mkdir /mnt/<devfs> mount /dev/dsk/<root> /mnt/<devfs>
18.	Install the jump start server on the Boot server.	cd <jumpstart_install_directory>
19.	Type the command to unpack miniroot.	<miniroot_mnt_dir>=`pwd`/boot
20.	Type the following commands if the software is installed at /opt: cd <miniroot_mnt_dir>/etc/ ln –s /tmp/calypso/CommVaultRegistry CommVaultRegistry Type the following commands if the software is installed at a different directory: cd <miniroot_mnt_dir> ln –s /tmp/calypso opt/calypso ln –s /tmp/calypso var/log/calypso
21.	Pack Miniroot	/boot/solaris/bin/root_archive pack sparc.miniroot `pwd`/boot
22.	Use Network File System protocol to export a directory with RW (Read/Write) permissions for the client to be recovered. /export/<mydir> where <mydir> is the name of the directory. Make sure the client gets all required permissions on this directory and its contents.	Example: /export/<dir1>
23.	From the Commcell console, restore CommVaultRegistry and /opt/calypso/* into /export/<mydir> cd to /export/<mydir> mkdir Log_Files mv Base32 Base mv iDataAgent32 iDataAgent If you are using x64 Solaris, then: mv Base/calypso Base32 rm –rf Base iDataAgent
24.	On the Client side, perform the following steps: Jumpstart the client using the boot server. Follow the prompts and get to a shell. Bring up all the interfaces. boot net -s Configure a default route. route add default <172.x.x.x> where <172.x.x.x> is the Gateway address Add the client IP address and hostname to: /etc/hosts Add the Media Agent and CommServe to: /etc/hosts
25.	Type the command to create partitions/slices on the disk.	fdisk /dev/rdsk/c1d0p0
26.	Type the command to create the root file system. newfs /dev/dsk/<DriveID> where <DriveID> is the Drive Identifier of the partition where you want to create the root file system.	Example: newfs /dev/dsk/<root>
27.	If ZFS file system is on root partition, perform the following steps to create zpools and file systems: zpool create –R/a <pool name> where <pool name> is the zpool name created during the initial Solaris install. zfs create <pool name>/FS1 where <pool name> is the zpool name created during the initial Solaris install and FS1 is the file system name zfs set mountpoint=<first_mountpoint><pool name>/FS1 where <first_mountpoint> refers to its original mountpoint and FS1 is the file system name fs create <pool name>/FS2 where <pool name> is the zpool name created during the initial Solaris install and FS2 is the file system name zfs set mountpoint=<first_mountpoint><pool name>/FS2 where <first_mountpoint> refers to its original mountpoint and <pool name> is the zpool name created during the initial Solaris install.
28.	Type the following command to create a dump and swap a file system: zfs create –V <space required> <fsname> where <fsname> is the filesystem name.	Example: /export/home
29.	Type the following commands to start the Recovery services: cd /opt/calypso mkdir /opt/calypso/Base/Temp/ . ./galaxy_vm . ./Base/cvprofile svc_ctrl –focus $GALAXY_VM -start cvd svc_ctrl –focus $GALAXY_VM -start EvMgrC svc_ctrl –focus $GALAXY_VM -start cvfwd
30.	Set the variable	Example: platform=`uname –i`
31.	Use the variable as directory, to map it to the correct Boot block. Type the following command for Solaris 10 Update 6 or above: installboot –F zfs /a/usr/platform/$platform/lib/fs/zfs/bootblk /dev/rdsk/<boot_disk> where <boot_disk> is the name of the disk to be booted Type the following command for Solaris 10 Update 5 or below: installboot /a/usr/platform/$platform/lib/fs/ufs/bootblk /dev/rdsk/<boot_disk> where <boot_disk> is the name of the disk to be booted Type the following command for x86 systems: installgrub –fm /a/boot/grub/stage1/a/boot/grub/stage2 /dev/rdsk/<boot disk> bootadm update-archive –R /a init 6
32.	Restart the computer.

Restoring the Solaris File System

1..

From the CommCell Browser, navigate to Client Computers | <Client> | File System.
Right-click the defaultBackupSet and then click All Tasks | Restore.

Enter the Solaris file system path to the data you wish to restore. You can type "/" as the path to restore the entire content.

Select the name of the client computer from the Destination Client list. If you are mounting the new root file system at /mnt, type or accept "/mnt" as the restore destination. Do not select Restore to same folder checkbox.

Click OK.

Do not select Unconditional Overwrite from the Advanced Options.

Restored data retains its original permissions. The ACLs are restored after the permissions are restored.

Select Immediate from the Job Initiation tab.
Click OK.

You can monitor the progress of the restore job in the Job Controller or Event Viewer window of the CommCell Console.

Restart the computer.

Disaster Recovery - Solaris File System

Table of Contents

Planning for a Disaster Recovery

Rebuilding the Operating System

Restoring the Solaris File System