Dell PowerVault 211S (SCSI) - Manual (Page 40)

4-2 Dell PowerVault 200S, 201S, 210S, and 211S Storage Systems Installation and Service Guide
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To configure the ESEMs or SEMMs for cluster operation, perform the following steps:
1. Locate the two-pin jumper labeled "FORCED JOINED JP8" on the ESEM or
SEMM (see Figure 4-1).
NOTE: Only the FORCE JOINED JP8 jumper has a jumper plug installed. The
Dell-installed defaults for jumpers JP1, JP2, JP6, and JP7 are NO jumper plugs
(empty).
The ESEM and SEMM is shipped with a jumper plug that is connected to only
one pin of the jumper.
2. Move the jumper plug to connect the two pins of the FORCED JOINED JP8
jumper.
3. Repeat steps 1 and 2 for the second ESEM or SEMM.
4. Install the two ESEMs or SEMMs into the PowerVault 2xxS storage system.
See "Installing the Second Enclosure Module" in Chapter 7.
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1 Noncluster operation (default configuration)
2 Cluster operation (forced joined mode)
3 Two-pin jumper (FORCED JOINED JP8)