add hardware details including photos from Quintex (team#40969)

howto/quintex.md

@@ -320,24 +320,67 @@ terminalserver](https://grml.org/terminalserver/).
 
 ## Design and architecture
 
-<!-- how this is built -->
-<!-- should reuse and expand on the "proposed solution" discussed in -->
-<!-- a previous RFC or the Discussion section below. it's a -->
-<!-- "as-built" documented, whereas the "Proposed solution" is an -->
-<!-- "architectural" document, which the final result might differ -->
-<!-- from, sometimes significantly -->
+The Quintex PoP is at the [Infomart](https://en.wikipedia.org/wiki/Infomart), a gigantic datacenter in
+Dallas, Texas. We have our own switch there donated by Quintex, a
+[D-Link DGS-1250-52X](https://www.dlink.com/en/products/dgs-1250-52x-52-port-10-gigabit-smart-managed-switch) switch. The servers are connected through the
+different VLANs on that switch. The OOB management network is on a
+separate "dumb" switch.
 
-## Network topology
+### Network topology
 
-This is the *planned* network topology, not implemented yet.
+This is the *planned* network topology, not fully implemented yet.
 
 ![network topology graph](quintex/topology.png)
 
 TODO: document textually the above, see the cymru ref for an example
 
+It physically looks like this:
+
+![Photo of the top of a 42U cabinet with three servers and a switch](quintex/gnt-dal-2023-02-10.jpg)
+![Details of the switch and servers, each server has 10 disk trays in front](quintex/gnt-dal-top-2023-02-10.jpg)
+![Back of the setup, where we see the extra management switch](quintex/gnt-dal-top-2023-02-10.jpg)
+
 ## Services
 
-<!-- open ports, daemons, cron jobs -->
+The main service at this point of presence is a 3-machine Ganeti
+cluster called `gnt-dal`. 
+
+### gnt-dal Hardware
+
+Each machine is identical:
+
+ * [SuperMicro 1114CS-TNR 1U][]
+ * AMD Milan (EPYC) 7713P 64C/128T @ 2.00Ghz 256M cache
+ * 512G DDR4 RAM (8x64G)
+ * 2x Micron 7450 PRO, 480GB PCIe 4.0 NVMe*, M.2 SSD
+ * 6x Intel S4510 1.92T SATA3 SSD
+ * 2x Intel DC P4610 1.60T NVMe SSD
+ * Subtotal: **12,950$USD**
+ * Spares:
+   * Micron 7450 PRO, 480GB PCIe 4.0 NVMe*, M.2 SSD: 135$
+   * Intel® S4510, 1.92TB, 6Gb/s 2.5" SATA3 SSD(TLC), 1DWPD: 345$
+   * Intel® P4610, 1.6TB NVMe* 2.5" SSD(TLC), 3DWPD: 455$
+   * DIMM (64GB): 275$
+   * labour: 55$/server
+ * **Total**: **40,225$USD**
+ * TODO: final cost to be confirmed
+ * **Extras**, still missing:
+   * shipping costs: was around 250$ by this [shipping estimate][],
+     provider is charging 350$
+ * **Grand total**: **41,000$USD** (estimate)
+
+[SuperMicro 1114CS-TNR 1U]: https://www.supermicro.com/en/Aplus/system/1U/1114/AS-1114CS-TNR.cfm
+
+For three such servers, we have:
+
+ * 192 cores, 384 threads
+ * 1536GB RAM (1.5TB)
+ * 34.56TB SSD storage (17TB after RAID-1)
+ * 9.6TB NVMe storage (4.8TB after RAID-1)
+ * Total: **40,936$USD**
+
+See [TPA-RFC-43](policy/tpa-rfc-43-cymru-migration-plan) for a more in-depth discussion of the chosen
+hardware and location.
 
 ## Storage