The concept of the ioSafe 1522+ NAS will be immediately obvious to some of our readers, and completely foreign for others. As a company, ioSafe has been making fireproof NAS units for years with waterproof ratings to also handle fire hoses putting out a fire. What ioSafe does, which is going to intrigue many, is that instead of building its own NAS, it utilizes Synology for the base NAS, then hardens the system from there. Let us get to it.
ioSafe 1522+ NAS Hardware Overview
The NAS itself is a large unit, but what pictures might not convey is that for a 5-bay NAS, it is heavy. It is 25kg (56lbs) empty and 28kg (62lbs) populated with drives. For some context, the Synology DS1522+ is 2.7kg empty. Almost 90% of the heft of the system is due to the fireproofing.
On the bottom of the unit we have status LEDs, a USB 3 port, and a power button shaped somewhat like the ioSafe logo.
That large faceplate in front of the drives is held on by magnets. Here is the inside of the lid.
Behind that, we are still not at the drives. Instead, there is another plate before we get into the heatsink drive compartment.
This faceplate to the drive chamber is held in place by a screw.
Now we can get to the drives. On one hand, this is not a hot-swap setup. On the other hand, there is no easy way to get to the drives, and that is the point.
Inside we had relatively small 4TB Seagate IronWolf drives, but there are larger options.
Here is a quick view of the backplane. ioSafe seems to be using the heatsink internal chassis instead of an open chassis with airflow to cool the drives. That makes sense since the system is designed to keep the NAS safe.
On the rear of the unit, we get the serial number, fans, and the rear I/O.
If you happen to see some markings on the turntable, this unit was so heavy that it scratched the turntable we use.
The serial number is etched into a plate above two fans.
Below that we get the I/O. There is a power input, two eSATA connections, a USB 3 Type-A port, and four 1GbE ports. 1GbE feels quite dated in 2023 given the proliferation of 2.5GbE clients and switches. As a result, there is an optional 10GbE module installed.
Removing the fans we can see the internals from a Synology NAS adapted for this ioSafe application.
Underneath the unit, we have a panel that pulls off. Here we can access the 32GB of ECC SODIMM memory and two M.2 SSD slots.
The SSD slots are not meant for primary storage since they are not in the protective shell that the hard drives are in. Instead. these are designed more for cache applications.
The memory is branded as Synology.
Here is a look at the SODIMM slots.
Overall, one can tell the strategy of the NAS from this design. The NAS is designed to protect the hard drives, but not the actual NAS in the case of a fire.
Next, let us take a look at the software.