SUNEnterprise220RServer: Raid1 Summary

Article Title: SUNEnterprise220RServer Raid1 summary. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
　　 I. Disk distribution:
0: c0t0d0
1: c0t1d0
Note: image is used as the image, that is, Raid1;
　　
System Disk (c0t0d0) Partition and image disk (c0t1d0:
C0t0d0s0 (d10) d0 c0t1d0s0 (d20)/9534 M
C0t0d0s1 (d11) d1 c0t1d0s1 (d21) swap 2049 M
C0t0d0s2 c0t1d0s2 overlap entire disk
C0t0d0s3 (d13) d3 c0t1d0s3 (d23)/usr 3584 M
C0t0d0s6 (d16) d6 c0t1d0s6 (d26)/metadb 50 M
C0t0d0s7 (d17) d7 c0t1d0s7 (d27)/export/home 2048 M
　　
　　 Ii. Install the DiskSuite:
After the system is installed, use Solarsi8 software 2 of 2 to install DiskSuite_4.2.1. installation path:/cdrom/cdrom0/Solaris_8/EA/installer & select the default installation.
　　
　　 Iii. Images (for root users ):
1. Adjust the file partition table of the second hard disk (c0t1d0) to be consistent with the boot disk
# Prtvtoc/dev/rdsk/c0t0d0s2 | fmthard? S? /Dev/rdsk/c0t1d0s2
Fmthard: New volume table of contents now in place
　　
2. Prepare the metadb space used by DiskSuite.
# Umount/metadb ** 50 MB small space usage, similar to swap space
# Rm? R/metadb
# Vi/etc/vfstab
Comment out or delete the following line, as shown below:
#/Dev/dsk/c0t0d0s6/dev/rdsk/c0t0d0s6/metadb ufs 1 yes?
　　
3. Create Mirror
① Mr. replicas for internal use in DiskSuite
# Metadb? A? F? C 2 c0t0d0s7 c0t1d0s7
# Metadb
② Creating a mirror from/
# Metainit-f d10 1 c0t0d0s0
# Metainit-f d20 1 c0t1d0s0
# Metainit d0-m d10
# Metaroot d0
③ Creating a mirror from swap
# Metainit-f d11 1 c0t0d0s1
# Metainit-f d21 1 c0t1d0s1
# Metainit d1-m d11
④ Creating a mirror from/var
# Metainit-f d13 1 c0t0d0s3
# Metainit-f d23 1 c0t1d0s3
# Metainit d3-m d13
⑤ Creating a mirror from/export/home
# Metainit-f d17 1 c0t0d0s7
# Metainit-f d27 1 c0t1d0s7
# Metainit d7-m d17
⑥ Edit the/etc/vfstab File
/Dev/dsk/c0t0d0s1--swap-no-
/Dev/dsk/c0t0d0s0/dev/rdsk/c0t0d0s0/ufs 1 no-
/Dev/dsk/c0t0d0s3/dev/rdsk/c0t0d0s3/var ufs 1 no-
/Dev/dsk/c0t0d0s7/dev/rdsk/c0t0d0s7/export/home ufs 2 yes-
Swap-/tmp tmpfs-yes-
Changed:
/Dev/md/dsk/d1--swap-no-
/Dev/md/dsk/d0/dev/md/rdsk/d0/ufs 1 no-
/Dev/md/dsk/d3/dev/md/rdsk/d3/var ufs 1 no-
/Dev/md/dsk/d7/dev/md/rdsk/d7/export/home ufs 2 yes-
Swap-/tmp tmpfs-yes-
7. File System Activation
# Lockfs? Fa
# Reboot
Sequence File System Association
# Define tach d0 d20
# Define tach d1 d21
# Define tach d3 d23
# Define tach d7 d27
⑨ View synchronization status
# Metastat d0
# Metastat d1
# Metastat d3
# Metastat d7
You can also use DiskSuite's graphical tool to view:
# Ool
After 100%, the Status of each file system is OK, even if the image is complete.
　　
Note: Each step in the detail step cannot be split into the previous steps for separate execution. In this way, after a file system is executed, the subsequent file system cannot be metainit, and the system prompts that the resources are occupied.
　　
　　 4. boot guide for the image Disk:
① Startup information
# Installboot/usr/platform/'uname? I '/lib/fs/ufs/bootblk/dev/rdsk/c0t1d0s0
② Modify the EEPROM
It is recommended to go to OK mode to modify
# Ls? L/dev/dsk/c0t0d0s0 ** get startup parameters
Lrwxrwxrwx 1 root 41 Jun 14/dev/dsk/c0t0d0s0->.../devices/pci @ 1f, 4000/scsi @ 3/sd @:
# Init 0
OK devalias (view Startup Device)
OK nvalias rootdisk/pci @ 1f, 4000/scsi @ 3/disk @ 0, 0
OK nvalias mirrdisk/pci @ 1f, 4000/scsi @ 3/disk @ 1, 0
OK setenv boot-device rootdisk mirrdisk disk:
③ Test
OK boot rootdisk ** the system starts normally. Find the Startup File.
OK boot mirrdisk ** the system starts normally. Find the Startup File.
　　
Note: When nvalias is configured, some documents write 'sd @ *, 0' at 'disk @ *, 0'. However, after testing, it cannot be started normally.