This is a close up of the VEEAM 11a backup server. It has several Western Digital Black drives for disk backup. The large workstation holds the two SAS LTO 4 and one SCSI LTO 4 tape drives. Three LTO 4 tape drives are used to backup and restore from three sets of tapes.
This was my old EE Lab. 9 Arduino devices and one Raspberry Pi. All of the devices were connected across the I2C bus. This allowed communication across devices.