Installing a Dell R810 Server with 12Tb Storage for a DB2 Database
This wasn’t a regular install as I had to create 2
partitions and 2 volume groups from scratch.
In this document we will go step by step installing the
hardware and software.
1.
Hardware:
Dell R810 Server, 128Gb RAM, with 2 160Gb SAS drives on
local storage
Dell MD1200 Storage array, connected to a LSI H800 Card.
First off, we connect the hardware; Power, Ethernet and the SAS
cables from the H800 to the storage.
You *could* connect only one SAS cable from the H800 to the
MD1200, however for redundancy we connect two SAS cables:
Then we need to
configure RAID 50 on the MD1200, you press CTRL-R when you see the prompt:
You will then be on a
screen as below:
Press Enter when the controller H800 is selected, then press
F2 to get into operations to create a new disk:
Choose the RAID level (in our case RAID 50 with no spares)
and then do a quick initialization.
We are now ready to reboot the system, after the MD1200
storage was configured, and when the system is powered up, press F12 to do a PXE Boot, and we kickstart it with RHEL 5.6
After the OS finishes installing, we need to configure the
volumes for the DB2 storage.
Since we wanted to put the storage on one volume group, and the backup on another volume group, since you can only have one volume group per partition, we will partition the array to 2
partitions:
See comments in 
blue
blue
Start
parted, by issuing the command parted (physical device – in our case /dev/sda)
[root@server-01 ~]# parted /dev/sda
Model: DELL PERC H800 (scsi)
Disk /dev/sda: 12.0TB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Choose
your partition sizes, and issue “mkpart primary start end” in this case we are
making one partition of 8.5TB and another of 3TB
(parted) mkpart primary 0 8500000
(parted) mkpart primary
8500001 11500000
Lets
see the partitions by issuing a “print” command:
(parted) p
Number Start End
Size File system Name
Flags
1 17.4kB
8500GB 8500GB primary
2 8500GB
11.5TB 3000GB primary
Step 2: create the physical storage:
pvcreate /dev/sda1
/dev/sda2
[root@server-01 ~]# pvcreate /dev/sda1
Physical volume
"/dev/sda1" successfully created
[root@server-01 ~]# pvcreate /dev/sda2
Physical volume
"/dev/sda2" successfully created
Step 3: initialize the /etc/lvmtab and /etc/lvmtab.d
files by running the following command:
vgscan
[root@server-01 ~]# vgscan
Reading all
physical volumes. This may take a
while...
Found volume
group "vg04" using metadata type lvm2
Found volume
group "vg01" using metadata type lvm2
Step 3.1: create a
volume group and assign one or more physical volumes to the volume group:
vgcreate -s (extent
size)M (volume-group) (physical partition)
[root@server-01 ~]# vgcreate -s 256M vg01 /dev/sda1
Volume group
"vg01" successfully created
[root@server-01 ~]# vgcreate -s 256M vg04 /dev/sda2
Volume group
"vg04" successfully created
Step 4: creation
of "logical volumes"
lvcreate -L (size)G
-n (name) (volume group)
# lvcreate -L 200G -n lvol3 vg01
# lvcreate -L 300G -n lvol2 vg01
# lvcreate -L 7TB -n lvol1 vg01
# lvcreate -L 2.7TB -n lvol4 vg04
Step 5: creation
of the filesystem:
mke2fs -j (volume)
mke2fs -j /dev/vg01/lvol4
mke2fs -j /dev/vg01/lvol1
mke2fs -j /dev/vg01/lvol2
mke2fs -j /dev/vg01/lvol3
mke2fs -j /dev/vg04/lvol4
Step 6: create
mount points:
mkdir /db2backup /db2onlinelog2 /data2 /db2dump2 /db2log2
step 7: Mount
logical volumes on mount points:
mount (volume)
(mountpoint)
mount /dev/vg01/lvol1 /data2
mount /dev/vg01/lvol3 /db2onlinelog2
mount /dev/vg01/lvol4 /db2dump2
mount /dev/vg04/lvol4 /db2backup
mount /dev/vg01/lvol2 /db2log2
Step 8: Add
corresponding line in the /etc/fstab file:
/dev/vg01/lvol1
/data2 ext3 defaults 0 0
/dev/vg01/lvol2
/db2log2 ext3 defaults 0 0
/dev/vg01/lvol3
/db2onlinelog2 ext3 defaults 0 0
/dev/vg01/lvol4
/db2dump2 ext3 defaults 0 0
/dev/vg04/lvol4
/db2backup ext3 defaults 0 0
10.2.6.20:/vol/database/ /mnt/rrr_bk
nfs defaults 0 0
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