i’m running a Proliant Microserver Gen 7, Originally bought as a stock N40L, outfitted with 5 2TB HHDs, replacing the CD Drive with one more HHD than the system was designed for, one 32GB Thumb drive for the OS, and 16GB of ECC RAM. All bought with the best suggestions of the FreeNAS community team suggestion. As a Linux user, I was sort of “experimenting” with BSD as the few BSD hobbyist fanatics I was acquainted with were always telling me “BDS is true UNIX and Linux is not.” I couldn’t argue with them as, in the office, we were all using HPUX and SUN Microsystems (as well as old IBM 370’s, going further back. I remember when a 300 baud modem waq considered “state of the art.” Anyways, because I knew I had to keep replacements around, I started with FreeNAS 7.1 and ZFS Z1 single vdev. My HHDs generally ran for about 5 years before I’d get the yellow triangle on the dashboard which required downing the machine for a couple of hours to replace the failed drive (as far as ZFS reported it), and things would get going again. The system was set up to store my ever growing collection of Korean dramas my wife wanted to watch to put her to sleep every night, so the down time wasn’t really noticed by her. I’ve scoured ebay for spare and adjunct parts, my forst purchase to be a 5 bay HHD box with a port multiplier. I created a second vdev on it and installed another 5 2TB HHDs as I was nearing “full” (80% of capacity). What I didn’t like about this setup was the eSATA connection would get bumped, causing a failure, and scrubs took about 27 hours. Around 2016 I began replacing my 2TB drives with 4TB drives as the older drives failed (FYI, I tended to always keep at least 2 new spares in boxes on my home office floor, buying them when they generally reached a price of around $85 for the most TB I could drive. Eventually, around 2021 I had only 2 2TB drives left that hadn’t failed but had at least 5 years of 24/7 running time on them. I replaced them and took the big step of resizing all 10 drives from 2TB to 4TB, doubling my capacity. Then I bought 2 14TB drives on sale and took the risk of creating two Z1 replications of my entire ZFS file sysstem (Oh yes, I had also replaced the Thumb drive with an eMMC drive with a SATA to USB adapter, backed up by a small external SSD with USB adapter for the OS.
Now the time to rebuild my filesystem as a Z2. This went smoothly, but I began to worry about parts of the MicroServer failing. Back to ebay, where I found a refurbished N54 MB $100, and now, 350 watt power supplies designated built for the Gen 7 MicroServers.
Still beleaguered by the 27 hour scrubs, I began to took into replacing the 5 bay eSATA external drive box with something run through an HBA. Looking around Newegg, I saw a 4 bay SAS/SAT box for $79 and envisioned stacking two boxes together, running them through the 350 watt “spare” power supply I had in myb “spares.” I took the risk and bought them as well as a Chinese HBA LSI9000 8e card as I had to stay in the realm of pcie2) through ebay again, as well as appropriate external SAS cables. I won’t get into the learning curve of SAS terminology here. Eventually it all worked, and the Chinese cables suffered what we must all know - poor QC, so I had to buy replacements as RMAs back to China don’t always work like we could like them to.
Finally, I began to think how to modernize more, deciding to upgrade the original SATA2 controller built into the southbridge of the Gen7 MBs, realized I could run the HBA into a SAS multipliier, take the HHDs off the Microserver backplane and put them onto the SAS multiplier. This took finding a SAS multiplier with the appropriate fittings and doing so. Result, my scrubs now take 3.25 hours.
Oh, yes, I must mention, when I got the N54 MB, I pulled the heat sinks off the CPU and SB, cleaned the crusty Thermal Paste, before installing it in the Proliant box (so I now have an N54 instead of an N40) and I also cleaned the still working N40 MB heat sinks that is now being maintained as a working spare. One thing I might mention, as there are still more Gen 7 users out there than I tought, is I had to go through a lot of “dead ends” trying to find the appropriate patches to the BIOS and pictures of disassembling the Microserver box.
Send me a message if you want more explicit information on my journey. I want to thank the FreeNAS and TrueNAS pioneers who have taken me through this journey with explanations of WHY things are done the way they were and are. Even though I’m ore familiar with Linux, I will continue to use CORE for my media server until I see comments from the SCALE users that suggest that all the problems the Linux community has had with adopting ZFS into Linux. I will say that once a year I replicate my whole media collection onto an external HHD (via the eSATA port, but next time through a spare slot inside my Microserver since it will run at SATA3 speeds rather than the old SATA2 via the southbridge chip) which gives me the ability to keep my wife’s hobby of watching her dramas through the night via my desktop running ARCH Linus with ZFS drivers provided via dkms.