The ZS3-4 standalone and cluster controller configurations allow up to 36 disk shelves, consisting of up to six chains of one to six disk shelves. Any combination of disk-only, or disk, log, and read cache devices can be combined within the chain in any order. You can also attach mixed disk shelf types (DE2 family and legacy Sun Disk Shelves) behind the same controllers, but each chain must contain only the same disk shelf type. Directly connecting different disk shelf types is not supported.
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