Upgrade Guidelines for Oracle Storage Drive Enclosure DE3-12C
The following guidelines apply when upgrading a system by installing Oracle Storage Drive Enclosure DE3-12C disk shelves. Note that two Oracle Storage Drive Enclosure DE3-12C disk shelves can replace one Oracle Storage Drive Enclosure DE3-24C disk shelf.
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Within the same system, the following disk shelves can be intermixed with Oracle Storage Drive Enclosure DE3-12C:
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Oracle Storage Drive Enclosure DE3-24C
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Oracle Storage Drive Enclosure DE3-24P, including all-flash configurations
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Oracle Storage Drive Enclosure DE2-24C
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Oracle Storage Drive Enclosure DE2-24P
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Oracle Storage Drive Enclosure DE3-12C disk shelves and Oracle Storage Drive Enclosure DE3-24 disk shelves can be in the same SAS chain.
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Oracle Storage Drive Enclosure DE3-12C disk shelves and Oracle Storage Drive Enclosure DE2-24 disk shelves must be in separate SAS chains.
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One disk shelf chain supports a maximum of 12 Oracle Storage Drive Enclosure DE3-12C disk shelves, for a total of 144 drives.
For more information on the maximum number of drive bays supported per Oracle ZFS Storage ZS9-2 model, as well as the maximum number of chains and other information, see Maximum Disk Shelves per Controller Configuration.