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Full Discussion: Excessive Paging&Swapping!
Top Forums UNIX for Advanced & Expert Users Excessive Paging&Swapping! Post 34589 by RTM on Friday 28th of February 2003 10:12:29 AM
Old 02-28-2003
How much memory does the system have? How much swap space? Has the /etc/system file been updated with the required parameters for Oracle? How long has the problem been occuring? (and what changed when it started - more users, more databases, new searches being launched daily...)

This isn't something one of us can just say "Yea, you need more memory" You have to work with your Oracle DBA and IT team to find out what was happening and what is happening, know/investigate any changes happening on the system be it OS or Oracle.

Give more details of what you have found and possibly a 'best guess' can be given back.

Post output from any of the monitoring tools showing your problem. If you haven't been watching your servers or at least have sar running and collecting information, turn it on to have some clue of what the server is doing at what times. Check for new cron jobs, increase in users utilizing the database, changes in your volume management (if you are using Vertias or any other volume manager, losing a disk drive and having it 'automatically' place databases on different disks that had the space (but really could not handle the increased load of hits) could cause problems (if you didn't have hot spares).
 

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fsvoladm(1M)															      fsvoladm(1M)

NAME
fsvoladm - VxFS volume administration utility SYNOPSIS
[bias] DESCRIPTION
The utility performs administrative tasks, such as adding, removing, resizing, and encapsulating volumes in a specified VERITAS File Sys- tem. mount_point specifies the directory on which the file system is mounted. volname specifies the volume within the volume set. By default, size, bias, and newsize are specified in units of disk blocks bytes). However, you can append or to the number to indicate that the value is in kilobytes, megabytes, gigabytes, or terabytes, respectively. Keywords Adds a volume to a file system. The new space is available for allocation. Removes an encapsulated volume from a file system and restores the original contents of the volume. This operation can fail if there were significant changes to a file's allocations on disk since encapsulation. A volume encapsulated with a bias cannot be deencapsulated. Adds a volume to a file system, making the contents of that volume, starting from offset bias, available as a file instead of free space. The size of the encapsulated file is size - bias. bias must be smaller than size, and be a multiple of the file system block size. The default value of bias is 0. Displays the volumes in a file system. Removes a volume from a file system. Resizes one of the volumes in a file system. In some circumstances, the command cannot resize a 100% full file system due to lack of space for updating structural information. Check VxFS file systems on a regular basis; increase their size if they approach 100% capacity. This problem can also occur if the file system is very busy. Free up space or reduce activity on the file system and try the resize again. EXAMPLES
The following command adds the volume that is 10 gigabytes in size, to the file system The following command removes the volume from the file system The following command resizes the volume in the file system from its current size to 20 GB: The following command displays the volumes in the file system The following command encapsulates the volume The volume is ten gigabytes in size, resides in the file system and has the file name The following command de-encapsulates the volume that was encapsulated in the previous example: SEE ALSO
df_vxfs(1M), fsapadm(1M), fsvoladm(1M), mount_vxfs(1M), vxvset(1M), fsvoladm(1M)
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