Why is there now unusually high, constant disk activity on my Mac?

Firefox 9.0.1 on Mac OS X 10.6.8 is churning my HD and then must be force quit. It seems to run but there's definately something new and unusual happening here.

Thanks for taking the time to reply.
You are right in that there are a lot of guides around to creating "fake" RAC clusters, however Hunter's guide appears to be one of the best and I found it while browsing around the Oracle website. Of course Oracle stress that it is entirely unsupported and for "education purposes" :)
Well education is what I'm after and I accept that it would perform nowhere near a real cluster. Still the performance issues I'm having appear abnormal.
The background to this is that one the applications I manage at work (Vmware) has a backend DB hosted on RAC. There is an entire database team who look after this area. For my own personal edification I'd like to learn a bit more about RAC (and Oracle in general) and get my hands dirty, though I currently have no long term aspirations to become a full fledged DBA. I'm working through a text on Safari and I thought it would be useful to create a "fake" as you put it cluster at home and play around a bit. Unfortunately the resources to create a "proper" environment are currently not within my means:(
With regards to my problem I was hoping someone here has played around with a similar setup and could advise whether they had similar issues. The 3 days or so I spent labouring through the 60 page guide was far more educational than just reading a text.
I've found that the excessive disk activity appears to be down to my server and Vmware ESXi rather than Oracle. I stopped all instances and CRS and the constant disk activity still continued. I had taken number of snapshots of each linux node during my installation and I'm currently deleting these to see whether this improves things. My hard disk could well be the bottleneck as ESXi is really meant for SCSI controllers and disks if using local datastores.
I'll take your advice and have a trawl through Ebay. I will also install standalone oracle on a seperate box and have a play with that.
Peter

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    Thanks for taking the time to reply.
    You are right in that there are a lot of guides around to creating "fake" RAC clusters, however Hunter's guide appears to be one of the best and I found it while browsing around the Oracle website. Of course Oracle stress that it is entirely unsupported and for "education purposes" :)
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    I'll take your advice and have a trawl through Ebay. I will also install standalone oracle on a seperate box and have a play with that.
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    -rw-r--r--   1 root root     29 Feb  5 11:09 lirc.conf
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    Last edited by clovenhoof (2013-03-21 18:20:26)

    Ok here is what get with "lsof -c systemd-tmpfile" during this activity:
    COMMAND    PID USER   FD   TYPE             DEVICE SIZE/OFF    NODE NAME
    systemd-t 1069 root  cwd    DIR                8,3     4096       2 /
    systemd-t 1069 root  rtd    DIR                8,3     4096       2 /
    systemd-t 1069 root  txt    REG                8,3    59504  290840 /usr/bin/systemd-tmpfiles
    systemd-t 1069 root  mem    REG                8,3    52144  262523 /usr/lib/libnss_files-2.17.so
    systemd-t 1069 root  mem    REG                8,3   138206  262495 /usr/lib/libpthread-2.17.so
    systemd-t 1069 root  mem    REG                8,3    18760  277530 /usr/lib/libattr.so.1.1.0
    systemd-t 1069 root  mem    REG                8,3  2035539  262449 /usr/lib/libc-2.17.so
    systemd-t 1069 root  mem    REG                8,3    31744  262453 /usr/lib/librt-2.17.so
    systemd-t 1069 root  mem    REG                8,3    16776  299945 /usr/lib/libcap.so.2.22
    systemd-t 1069 root  mem    REG                8,3   165436  262497 /usr/lib/ld-2.17.so
    systemd-t 1069 root    0r   CHR                1,3      0t0    6461 /dev/null
    systemd-t 1069 root    1u  unix 0xffff8801393df1c0      0t0   23160 socket
    systemd-t 1069 root    2u  unix 0xffff8801393df1c0      0t0   23160 socket
    systemd-t 1069 root    3u  unix 0xffff8801393dba80      0t0   23161 socket
    systemd-t 1069 root    4r   DIR                8,3  9482240 1970431 /var/tmp
    systemd-t 1069 root    5r   DIR                8,3     4096  793638 /var/tmp/systemd-private-G25Rag

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