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No swap being used

No swap being used

2006-01-12       - By Jeff Macfarland

 Back
Reply:     1     2     3     4     5     6     7     8     9     10     >>  

Sun V20z, RHEL 3u5, i386 kernel, 12GB RAM, 12GB swap

This box hosts quite a few things, among them serving SunRay's. We've
been experiencing horrible slowdowns particularly during a cvs checkout.
Just noticed that NO swap is being used:

output of `free`:

            total       used       free   shared    buffers     cached
Mem:      12277844   12036764     241080        0    1333552    7502204
-/+ buffers/cache:    3201008    9076836
Swap:     12578704          0   12578704

`swapon -s`:

Filename                        Type            Size    Used    Priority
/dev/sda2                       partition       2096472 0       -1
/dev/sda3                       partition       2096472 0       -2
/dev/sda5                       partition       2096440 0       -3
/dev/sda6                       partition       2096440 0       -4
/dev/sda7                       partition       2096440 0       -5
/dev/sda8                       partition       2096440 0       -6

`dmesg`:
...
Adding Swap: 2096472k swap-space (priority -1)
Adding Swap: 2096472k swap-space (priority -2)
Adding Swap: 2096440k swap-space (priority -3)
Adding Swap: 2096440k swap-space (priority -4)
Adding Swap: 2096440k swap-space (priority -5)
Adding Swap: 2096440k swap-space (priority -6)
...

`grep swap /etc/fstab`:
/dev/sda2     swap     swap     defaults     0 0
/dev/sda3     swap     swap     defaults     0 0
/dev/sda5     swap     swap     defaults     0 0
/dev/sda6     swap     swap     defaults     0 0
/dev/sda7     swap     swap     defaults     0 0
/dev/sda8     swap     swap     defaults     0 0

Doing `mkswap /dev/sda2; swapon -s` has no effect.

Is there some secret setting to enable swap?

--
Jeff Macfarland (jmacfarland@(protected))
Nexa Technologies - 972.747.8879
Unix Administrator
GPG Key ID: 0x5F1CA61B
GPG Key Server: hkp://wwwkeys.pgp.net

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