Verify Storage Server Disk Space

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Before you set up Database I/O Domains or Database Zones, perform this procedure if SuperCluster contains existing databases.

Verify that the appropriate amount of disk space is available on the storage servers:

If you are not sharing storage servers across clusters and you have entire storage servers available for the Database Domains or Database Zones, then you do not have to do anything more here. You can assign the entire storage servers to the new Database Domains or Database Zones as part of this procedure.
If you are sharing storage servers across clusters, you must determine how much free space is available on the storage servers that you are using for these Database Domains or Database Zones before proceeding.

Caution - If you are sharing storage servers across clusters, you must follow the procedures in this section so that you have the correct information before deciding on the size of the disk groups for the new clusters that you plan to create. Failure to do so could result in your existing disk groups being overwritten.

Determine the amount of free space available on the storage servers.

CellCLI> list celldisk attributes name,freespace,freespacemap

For example:

CD_00_etc25celadm01	 366.6875G	 ((offset=162.046875G,size=366.6875G))
CD_01_etc25celadm01	 366.6875G	 ((offset=162.046875G,size=366.6875G))
CD_02_etc25celadm01	 393.8125G	 ((offset=164.046875G,size=393.8125G))
CD_03_etc25celadm01	 393.8125G	 ((offset=164.046875G,size=393.8125G))
CD_04_etc25celadm01	 393.8125G	 ((offset=164.046875G,size=393.8125G))
CD_05_etc25celadm01	 393.8125G	 ((offset=164.046875G,size=393.8125G))
CD_06_etc25celadm01	 393.8125G	 ((offset=164.046875G,size=393.8125G))
CD_07_etc25celadm01	 393.8125G	 ((offset=164.046875G,size=393.8125G))
CD_08_etc25celadm01	 393.8125G	 ((offset=164.046875G,size=393.8125G))
CD_09_etc25celadm01	 393.8125G	 ((offset=164.046875G,size=393.8125G))
CD_10_etc25celadm01	 393.8125G	 ((offset=164.046875G,size=393.8125G))
CD_11_etc25celadm01	 393.8125G	 ((offset=164.046875G,size=393.8125G))
FD_00_etc25celadm01	 0
FD_01_etc25celadm01	 0
FD_02_etc25celadm01	 0
FD_03_etc25celadm01	 0
FD_04_etc25celadm01	 0
FD_05_etc25celadm01	 0
FD_06_etc25celadm01	 0
FD_07_etc25celadm01	 0
FD_08_etc25celadm01	 0
FD_09_etc25celadm01	 0
FD_10_etc25celadm01	 0
FD_11_etc25celadm01	 0
FD_12_etc25celadm01	 0
FD_13_etc25celadm01	 0
FD_14_etc25celadm01	 0
FD_15_etc25celadm01	 0

Examine the CD_number entries to determine the amount of available space on each of the storage servers.

Use the information on the amount of available space on each of the storage servers to determine how much space you can use for the disk groups for each new cluster you are creating.
You need enough space for these disk groups for each new cluster that you are creating:
- DATA
- RECO
- DBFS (if necessary)