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    /exlibris filesystem getting full

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    • Article Type: General
    • Product: Aleph
    • Product Version: 18.01

    Description:
    It looks like our /exlibris file system is close to full:

    Filesystem 1K-blocks Used Available Use% Mounted on
    /dev/sdc1 640951500 570482724 37910244 94% /exlibris
    /dev/sdd1 640951500 99331300 509061668 17% /exlibris1
    /dev/sde1 640951500 14285868 594107100 3% /exlibris2


    1. How do we know our last cold backup time and where are the files. I checked the directory /exlibris/oradata/aleph1/arch/ is really big. I am not sure what we should do.

    2. Currently we have V16 and V18 installed on our production system. It looks like the oracle data for v16 have 100G data files. Since we are not going to use v16 what we should do with it to free some spaces.

    3. We also have another 2 file systems /exlibris1 and /exlibris2. They are not get used that much. Is there something we can do to let the process go there to save the files.

    Resolution:
    1. Checking the alert log:

    > view $ORACLE_ALERT_LOG

    I find that the most recent "Starting ORACLE instance" is Feb 17 08:04:55 2009. That means that the last cold backup was no more recent than that date. This stop/start of Oracle was probably for a backup, but, anyway, we suggest that you do a cold backup now since 8 months is long enough to go without one.

    2. du -sk shows the following:

    /exlibris/oradata/aleph0 103 gig [aleph0 is the Oracle SID for v16]
    /exlibris/aleph/u16_1 21 gig
    /exlibris/aleph/a16_1 4 gig

    If you are done with v16, you can delete these files. Note: in order to delete the aleph0 dbf files, you will need to first drop the aleph0 tablespaces. This is described at http://stanford.edu/dept/itss/docs/oracle/10g/server.101/b10759/statements_9004.htm . Make sure you are doing this in aleph0!

    3. The above will make plenty of space in /exlibris. You may want to look at redistributing files to exlibris1 or exlibris2 when you implement Aleph 20 / Oracle 11, but I do not think it will be necessary before then.

    You may want to disable the unused pc_ser_6991's {which generates large (unused) files} -- as described in KB 3966.

    • Article last edited: 10/8/2013