hardware

Updating firmware etc on a Dell R730

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EDIT: I’m updating this post with new information, I’m missing some photos – they are on my other laptop… EDIT: If you get stuck with older firmware which cannot use existing DELL infrastructure, give https://updateyodell.net a try. It helped me leapfrog along the upgrade path. I started reading Updating firmware etc on a Dell R720 – the details were in a Twitter thread. Until recently, that was sufficient. Today, that thead won’t load. […]

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knew

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This host has gone to a new home (2024-03-30). The 5TB drives are still around, and are for sale. I should list those on eBay. For future reference, this is the knew server … oh wait, I think it’s this server which is was mounted in the 4U chassis mentioned in this post. It runs a few jails, including Bacula regression testing services. It is now mounted in a SuperChassis 846E16-R1200B This is

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slocum

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For my own records, I wiped the drives on 2024-01-03. On 2024-01-06, a chap from NY drove down to buy it off me. Thanks, and safe travels to a good server. For reference, the previous post on this server is still available. FYI, this server is named after Joshua Slocum, who was the first person to sail single-handedly around the world. This server was upgraded on Feb 2 2019. Only the storage persisted.

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x8dtu

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This is x8dtu (named after the SuperMicro motherboard). This is the old but new FreshPorts server, which currently running on AWS, not this host. The previous post for this is still available In short: FreeBSD 13.0 booting off a mirrored pair of zfsroot SSDs 4.5TB of mirrored ZFS 196612 MB of RAM (yeah, that’s 196GB of RAM) SuperMicro X8DTU motherboard Intel Xeon E5620 @ 2.40GHz (two of those, giving 16 CPUs) NOTE: this

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stressdisk

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This was written a few weeks ago and I just noticed today that it had not been published. Following on from I bought a new nvme drive – or did I?, I ran stressdisk on it. [dvl@test ~]$ sudo gpart add -a 4k -t freebsd-zfs nvd0 nvd0p1 added [dvl@test ~]$ gpart show nvd0 => 34 500118125 nvd0 GPT (238G) 34 6 – free – (3.0K) 40 500118112 1 freebsd-zfs (238G) 500118152 7 –

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I bought a new nvme drive – or did I?

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Bought a new NVMe drive. Installed it using cheap PCIe adaptor bought off Amazon. From /var/run/dmesg.boot nvd0: NVMe namespace nvd0: 244198MB (500118192 512 byte sectors) Surprisingly, the device is already partitioned. [dvl@test ~]$ gpart show nvd0 => 34 500118125 nvd0 GPT (238G) 34 500118125 – free – (238G) [dvl@test ~]$ Eh, is is this a used device? The static bag it arrived in was sealed. Let’s see. [dvl@test ~]$ sudo smartctl -a /dev/nvd0

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Accessing a Dell iDRAC 7 via Nginx reverse proxy

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HEADS UP: this is still under review. Until this notice is removed, I recommend not using this. I have a Dell R720 at an ISP. The iDRAC connection is filtered, by the ISP, and is accessible only from a small number of IP addresses. Sure, this talks about a web proxy. It works. So does the ssh forwarding shown at the bottom of this post. NOTE: I should start monitoring that IP addr

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Eaton EMA114-10 ePDU – initial configuration

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On Friday, the latest addition to the #homelab turned up. An Eaton EMA114-10 PDU. A PDU is a Power Distribution Unit. Think of it as a step up from a power strip. This is a 24 outlet, single phase, managed PDU. With it, individual outlets can be monitored for power usage and they can be switched on or off. Access methods include ssh, telnet, serial port, http, and https. This PDU is zero-U,

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Eaton ePDU Auth Algorithm & Crypto Algorithm for SNMPv3 Configuration

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I recently acquired an Eaton EMA114-10 PDU. When adding it to LibreNMS, I did not know what Authorization Algorithm or Crypto Algorithm to use when configuring it for SNMPv3. Searching did not find anything. IRC did. dagb on the LibreNMS IRC channel knew what was used for older EATON devices. Turns out, that hasn’t changed. These are the answers: Auth Algorithm – MD5 Crypto Algorithm – AES I hope this saves you time.

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writing random data via geli

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You might recall that suspect drive from the zpool replace on the weekend. Thomas Hurst suggested: Might be worth overwriting the drive, try to encourage it to actually reallocate the sectors now the data on them is no longer needed. I, being one to take advice from people on the internet, and Michael W Lucas, decided to try his suggestion. The drive in question. [dan@knew:~] $ tail /var/log/messages Dec 14 00:00:00 knew newsyslog[88570]:

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