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Hardware rack layout

Physical installation of the ISC³ rack, located in room 23N307. Mgmt is the out-of-band address (iDRAC/BMC or device management), User the OS-facing address; all addresses are 192.168.<net>.<ip> on the ISC³ network. Hover a device for its addresses; the exact values are in the table below.

front
43424140393837363534333231302928272625242322212019181716151413121110987654321
filler
tango0 – tango12× Lenovo ThinkStation PGX
epyc1Gigabyte R282-Z92
spareDell R630
spareDell R630
spareDell R630
filler
spareDell R630
spareDell R630
spareDell R630
spareDell R630
carnaval10Dell R630
carnaval9Dell R630
carnaval8Dell R630
carnaval7Dell R630
carnaval6Dell R630
carnaval5Dell R630
carnaval4Dell R630
carnaval3Dell R630
carnaval2Dell R630
carnaval1Dell R630
carnaval0Dell R630
filler
nasSynology FS2500
epyc0Gigabyte R282-Z92
rumbaDell Precision 7920 Rack
calypsomasterDell R740
UPSBlueWalker VFI 2000 RMG PF1
foam
back
43424140393837363534333231302928272625242322212019181716151413121110987654321
epyc1Gigabyte R282-Z92
spareDell R630
spareDell R630
spareDell R630
spareDell R630
spareDell R630
spareDell R630
spareDell R630
carnaval10Dell R630
carnaval9Dell R630
carnaval8Dell R630
carnaval7Dell R630
carnaval6Dell R630
carnaval5Dell R630
carnaval4Dell R630
carnaval3Dell R630
carnaval2Dell R630
carnaval1Dell R630
carnaval0Dell R630
cable distributor
router CFS S3600-48T4S
router BMikroTik CRS326
router AMikroTik CCR2004
nasSynology FS2500
epyc0Gigabyte R282-Z92
rumbaDell Precision 7920 Rack
calypsomasterDell R740
UPSBlueWalker VFI 2000 RMG PF1
foam
Other computeSpare (inactive)NetworkStoragePowerBlank / filler

Full-depth machines appear dimmed on the opposite face. On the external side of the rack: the PDU, an APC AP8681 (NetShelter Rack PDU 2G, metered-by-outlet with switching, 0U vertical, 11 kW, 230 V three-phase, 21× C13 + 3× C19) at 192.168.88.10 — details on the Power page.

Unit details​

UDeviceModelSideMgmtUserNotes
36tango0 – tango12× Lenovo ThinkStation PGXfront—192.168.88.43one of the two momentarily removed; the racked node sits on a dynamic lease, not the reserved .20/.21 — see the Tango page
34–35epyc1Gigabyte R282-Z92front192.168.88.12192.168.88.462× EPYC 7443 (48 c) · 480 GiB · Proxmox VE standalone node · 5.68 TiB NVMe RAIDZ1 (Aug 2026)
33spareDell R630front192.168.90.27—
32spareDell R630front192.168.90.26—
31spareDell R630front192.168.90.25—
29spareDell R630front192.168.90.24—
28spareDell R630front192.168.90.23—
27spareDell R630front192.168.90.22—
26spareDell R630front192.168.90.21—
25carnaval10Dell R630front192.168.90.20192.168.91.20carnaval cluster · Tesla T4
24carnaval9Dell R630front192.168.90.19192.168.91.19carnaval cluster · A2
23carnaval8Dell R630front192.168.90.18192.168.91.18carnaval cluster · A2
22carnaval7Dell R630front192.168.90.17192.168.91.17carnaval cluster · A2
21carnaval6Dell R630front192.168.90.16192.168.91.16carnaval cluster · A2
20carnaval5Dell R630front192.168.90.15192.168.91.15carnaval cluster · A2 · powered off — DIMM_B1 errors, not yet rebuilt
19carnaval4Dell R630front192.168.90.14192.168.91.14carnaval cluster · A2
18carnaval3Dell R630front192.168.90.13192.168.91.13carnaval cluster · A2
17carnaval2Dell R630front192.168.90.12192.168.91.12carnaval cluster · A2
16carnaval1Dell R630front192.168.90.11192.168.91.11carnaval cluster · A2
15carnaval0Dell R630front192.168.90.10192.168.91.10carnaval cluster · A2
14cable distributor—back——
13router CFS S3600-48T4Sback192.168.88.2—
12router BMikroTik CRS326back192.168.88.254—
11router AMikroTik CCR2004back192.168.88.1—
10nasSynology FS2500front192.168.88.250—DSM 7.2.1 · 12× SSD · 1.7 TB RAID 5 + 6.7 TB RAID 6 + hot spare · 2× 10 GbE to the CCR since Aug 2026 — volume contents on the NAS page
8–9epyc0Gigabyte R282-Z92front192.168.88.11192.168.88.47in repair (Aug 2026) — offline, all addresses silent
6–7rumbaDell Precision 7920 Rackfront192.168.92.10192.168.88.51Proxmox VE · static IP
4–5calypsomasterDell R740front192.168.90.248192.168.88.248Ubuntu, idle · to become mgmt-01
2–3UPSBlueWalker VFI 2000 RMG PF1front——2 kVA online · no network interface · USB to rumba (Aug 2026) · carries both of rumba PSUs since 2026-08-03

Notes​

  • Routers A and B are the two MikroTiks described on the ISC³ network page; router C is an FS S3600-48T4S switch attached to the CCR2004 on port sfp+12.
  • tango0 / tango1 are the Tango AI workstation pair (renamed from pagode in August 2026); one of the two is momentarily out of the rack. Compact machines rather than 19" chassis, they share U36 on the front face.
  • epyc0 / epyc1 (dual-EPYC Gigabyte R282-Z92) are the servers for the future Proxmox infrastructure — see Epyc for the current state and Future work for the target. epyc1 runs Proxmox VE as a standalone node; epyc0 is in repair as of August 2026 and all its addresses are silent.
  • rumba is the Rumba GPU server; calypsomaster is the R740 that ran the former Calypso cluster (archive); it awaits its conversion to mgmt-01.
  • The seven spare Dell R630 (U26–33) are racked but their iDRACs were never put on the management LAN — how they become carnaval nodes.