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Disk Space with SAP HANA


One of our customers is down to about 700mb of space left on their shared folder on their Linux Server. After looking at it, I'm quite confused as what could be removed.. and what couldn't. (New to the Linux side of it, not sure the importance of the logs). Any idea to guide me in the right direction to getting my client some more space?

I'm not too sure what logsegments are, or how important the datavolumes are. Having done some research, it didn't really help clear it up, but confused me more. Any ideas?



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    Posted on Jul 27, 2016 at 02:08 PM

    Hi Jamie,

    Don't know why data and log volumes are located in directory shared/NDB/global/hdb.

    Consider to increase file system size, or you can move data and log volume to other directories as per Move HANA data and log files to different mount point.



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    • Hi Jamie,

      /usr/sap/NDB/SYS/glocal is a soft link to directory /hana/shared/NDB/global, so you can see the same folders under different place.

      I just guess that currently log backup can't be finished as /hana/shared is almost full. Log is continually written into the online redo logs volumes. As a result, the size of directory /hana/shared/global/hdb/log is almost 35GB.

      If most of the log segments are in state FREE, SQL state ALTER SYSTEM RECLAIM LOG can be helpful. (for how to check log segment status, please refer to 2083715 - Analyzing log volume full situations).

      You'd better let Linux administrators extend the file system /hana/shared.



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