https://community.hpe.com/t5/hpe-eva-storage/msa1500-hot-add-scsi-disk-shelf/m-p/4644474#M44943 From the MSA1500 maintenance and service guide:<BR /><BR />Adding a new storage enclosure<BR />New storage enclosures with unconfigured hard drives are hot-pluggable. Perform the following steps to attach and install a new enclosure to an existing MSA:<BR />1. Install the new storage enclosure in the rack. Refer to the documentation that shipped with the rack for instructions.<BR />2. Connect the SCSI cables to the SCSI connectors on the MSA and the storage enclosure.<BR />3. Connect the power cords to the power supplies at the rear of the enclosure.<BR />4. Power on the enclosure.<BR />5. Configure new storage with the ACU or the CLI. Verify that additional storage is identified through the utility. For instructions, see the ACU or CLI user documents.<BR />6. Run the operating-system-specific administration utility to add LUNs.<BR />7. If necessary for your operating system, reboot the server to use the new storage. Tue, 08 Jun 2010 18:02:26 GMT Víctor Cespón 2010-06-08T18:02:26Z https://community.hpe.com/t5/hpe-eva-storage/msa1500-hot-add-scsi-disk-shelf/m-p/4644473#M44942 We have a MSA 1500 that has 2 SCSI Disk Shelves on it. We have a unused SCSI I/O Module allready in the MSA 1500 and I'm now ready to add my third shelf.<BR /><BR />Can this shelf be connected while the MSA is running. Seems to me I've done this in the past but it's been a while so I wanted to check. Tue, 08 Jun 2010 16:51:22 GMT https://community.hpe.com/t5/hpe-eva-storage/msa1500-hot-add-scsi-disk-shelf/m-p/4644473#M44942 Bruce Prokopow 2010-06-08T16:51:22Z https://community.hpe.com/t5/hpe-eva-storage/msa1500-hot-add-scsi-disk-shelf/m-p/4644474#M44943 From the MSA1500 maintenance and service guide:<BR /><BR />Adding a new storage enclosure<BR />New storage enclosures with unconfigured hard drives are hot-pluggable. Perform the following steps to attach and install a new enclosure to an existing MSA:<BR />1. Install the new storage enclosure in the rack. Refer to the documentation that shipped with the rack for instructions.<BR />2. Connect the SCSI cables to the SCSI connectors on the MSA and the storage enclosure.<BR />3. Connect the power cords to the power supplies at the rear of the enclosure.<BR />4. Power on the enclosure.<BR />5. Configure new storage with the ACU or the CLI. Verify that additional storage is identified through the utility. For instructions, see the ACU or CLI user documents.<BR />6. Run the operating-system-specific administration utility to add LUNs.<BR />7. If necessary for your operating system, reboot the server to use the new storage. Tue, 08 Jun 2010 18:02:26 GMT https://community.hpe.com/t5/hpe-eva-storage/msa1500-hot-add-scsi-disk-shelf/m-p/4644474#M44943 Víctor Cespón 2010-06-08T18:02:26Z