Add a large-capacity hard disk and create a disk array RAID5 on the SUNE250 workgroup Server
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Author: User
Add a large-capacity hard disk and create a disk array RAID5 on the SUNE250 workgroup server-Linux Enterprise Application-Linux server application information. For details, refer to the following.
1. Add a large-capacity hard drive on SUN E250
The SUN E250 Server is a working group server that can be inserted with six hard disks. SUN officially said the server can only use SCSI hard disks smaller than 36 GB, in practice, we have successfully inserted an 18 gb scsi hard disk on SUN E250 to install the operating system, and five gb scsi hard disks for data storage. The procedure is as follows:
Tip 1: First insert an 18 GB hard disk and install the Solaris 9 operating system.
2. Shut down the system, and adjust the ID number of each SCSI large-capacity hard disk so that it is unique and inserted into the machine.
3. Press Stop-A to enter the PROM status % init 0 OK (PROM status prompt ).
4.1.4. Confirm the SCSI device status of the current system at the PROM status prompt.
Using probe-scsi or probe-scsi-all
In this case, the system displays the Target ID of the SCSI device that can be identified. If the hard disk information of the new connection does not appear, confirm it as follows.
1) check whether the device number is repeated?
Target-ID SunOS 4. xSolaris 2.x
3 internal hard drive
1 hard disk is usually the same as SunOS 4.x.
2. If the hard disk ID is not repeated
0 hard disks can be used for hard disks.
4 tapes
5 tapes
6 CD-ROM
2) Check whether physical connections, such as cables, plug-ins, and connectors are correct?
3) is the total length of the SCSI cable less than 6 meters?
5. restart the system and type
Boot-r
Note that only when the "-r" option is added, the system generates the corresponding device file for the recognized device (including the SCSI device) at startup.
Partition 6. Partition the New Hard Disk
After entering the system status, execute the format command to partition the new hard disk.
Encoding # format (CR)
Using Searching for disks... done
Optional available disk selections:
Defaults 0. c0t0d0
Required/pci @ 1f, 4000/scsi @ 3/sd @
20171. c0t1d0
Required/pci @ 1f, 4000/scsi @ 3/sd @ 9,0
Listen 2. c0t2d0
Required/pci @ 1f, 4000/scsi @ 3/sd @ a, 0
Listen 3. c0t3d0
Required/pci @ 1f, 4000/scsi @ 3/sd @ B, 0
Listen 4. c0t4d0
Required/pci @ 1f, 4000/scsi @ 3/sd @ d, 0
Listen 5. c0t5d0
Required/pci @ 1f, 4000/scsi @ 3/sd @ f, 0
Specify disk (enter its number): 1 // <-- select Hard disk
Selecting c0t1d0
Disks [disk unformatted]
Invalid format MENU:
Disk select a disk
Foreign type select (define) a disk type
Partition select (define) a partition table
Specified current describe the current disk
Using format and analyze the disk
Descrirepair repair a defective sector
Show translate a disk address
Using label write label to the disk
Analyze surface analysis
Includefect defect list management
Elastic backup search for backup labels
Verify read and display labels
Saved save new disk/partition definitions
Inquiry show vendor, product and revision
Invalid volname set 8-character volume name
Success! Execute , Then return
Quit
Partition format> partition <-- type partition (or p) to enter the partition status.
Partition menu:
Else 0-change '0' partition
Interval 1-change '1' partition
Interval 2-change '2' partition
Partition 3-change '3' partition
Partition 4-change '4' partition
Raise 5-change '5' partition
Partition 6-change '6' partition
Partition 7-change '7' partition
Explain select-select a predefined table
Modify-modify a predefined partition table
Partition name-name the current table
Print-display the current table
Partition label-write partition map and label to the disk
Success! -Execute , Then return
Quit
Partition> modify <-- type modify (or m) to modify the current partition table.
Explain Select partitioning base:
Limit 0. Current partition table (original)
Lifecycle 1. All Free Hog Choose base
Round (enter number) [0]? 1 <-- select the current partition table.
When Okay to make this the current partition table [yes]? Y <-- confirm
Enter table name (remember quotes): new_table <-- type an appropriate name.
Partition> label <-- type A label (or lab) to set the System ID.
Confirm OK to label disk? Y <-- Type y
Partition> q <-- type q to exit the partition status.
Export format> q <-- type q to exit format
(Note 1) when other partition sizes are changed, the Free Hog is used for automatic adjustment within the capacity range.
(Note 2) the specific method to specify the partition capacity is as follows:
Add "B" to the capacity value: specify the number of parts.
Add "c" to the capacity value: specify the number of cylinders.
Add "mb" to the capacity value: specify the number of MB.
We recommend that you specify the partition capacity in mb.
To create a RAID for a hard disk array, perform the preceding operations on each hard disk, and then skip the Step 7 ~ You can directly create a RAID in step 12.
7. generate a new file system
Use the newfs command to generate the partition into a new file system.
So far, large-capacity SCSI hard disks can be recognized by machines.
2. Use software to create RAID 5 for Hard Disk Arrays
The following are examples of using the solaris9 system and 6 hard disks (one system disk, the other five as RAID 5, and the mount as an email system instance under/var/eyou.
In Solaris 9, the configuration can be completed in nine steps in the form of a command line!
Partition 1. Use the format command to partition and format each hard disk and set the hard disk volume label and other parameters.
2. Create a metadevice database that includes information about the hard disk partition in metadevices.
You should change parameters such as c0t1d0s2 c0t2d0s2 c0t3d0s2 c0t4d0s2 c0t5d0s2 based on your system and the actual situation of adding a hard disk.
3. Configure raid0 metadevice. In this step, the name of raid0 metadevice is defined, and the slices particle ating and stripe width information in metadevice are defined.
4. Configure one or more hot spare pools for initialization.
Metric # metainit hsp001
Metric # metaparam-h hsp001 d0
This step takes a long time, depending on the number of hard disks and capacity, usually takes several hours. Run the following command at any time to check whether it is finished or not.
Create a directory for installation and use the mount command for installation.
# Mkdir/var/eyou (CR)
Dependencies # mount/dev/md/dsk/d0/var/eyou (CR)
7. Confirm the installation result and run the df command to confirm the installation result.
Counter # df-k (CR)
8. automatically install the new file system
Mount the new file system to the desired directory and set automatic loading upon startup! Run the vi command to modify the/etc/vfstab file and add the following line to the file.
In the solaris9 system, you can also start the Management Console (SMC) tool to configure it in the graphic interface. Because it is a graphical interface in Chinese and there are help prompts in each step, I will not go into details here!
Note: Do not use a combination of graphs and command lines. Otherwise, the configuration will fail. Create a database in the graphic interface. Otherwise, the next step will fail!
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