Solution to insufficient swap space during oracle11g Installation

Adding virtual memory in linux solves the problem of insufficient swap space

Add a SWAP file:

1. view the current virtual memory

[Root @ ora11gr2 ~] # Free-m

Total used free shared buffers cached
Mem: 2026 217 1809 0 11 126
-/+ Buffers/cache: 78 1947
Swap: 2047 0 2047
[Root @ ora11gr2 ~] #

[Root @ ora11gr2 ~] #

[Root @ ora11gr2 mapper] # ll
Total 0
Crw ------- 1 root 10, 63 Mar 19 control
Brw-rw ---- 1 root disk 253, 0 Mar 19 VolGroup00-LogVol00
Brw-rw ---- 1 root disk 253, 1 Mar 19 VolGroup00-LogVol01
[Root @ ora11gr2 mapper] #

[Root @ ora11gr2 mapper] #

2. Increase the current swap space from 3047 mb to 1024 mb. Add a mb swap file.

[Root @ ora11gr2 mapper] # dd if =/dev/zero of =/home/swap bs = 1024 count = 1024000
1024000 + 0 records in
1024000 + 0 records out

1048576000 bytes (1.0 GB) copied, 29.5369 seconds, 35.5 MB/s

3. Run the following command to add and enable the virtual memory.

[Root @ ora11gr2 mapper] # mkswap/home/swap

Setting up swapspace version 1, size = 1048571 kB
[Root @ ora11gr2 mapper] # swapon/home/swap
[Root @ ora11gr2 mapper] # cd/home/
[Root @ ora11gr2 home] # ll
Total 1025008
Drwx ------ 3 oracle oinstall 4096 Mar 18 oracle
-Rw-r -- 1 root 1048576000 Mar 19 00:14 swap

[Root @ ora11gr2 home] # free-m
Total used free shared buffers cached
Mem: 2026 1232 793 0 13 1127
-/+ Buffers/cache: 92 1934
Swap: 3047 0 3047