hardware

Duplicating a zpool

I have these boot drives, I want to copy them to another. They both happen to be zroot and bootable. I booted from mfsBSD and imported both new and old zroot, using the pool ID shown by zpool import -N. root@mfsbsd:~ # zpool import -N pool: data01 id: 2668514456528412656 state: ONLINE action: The pool can …

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Creating a 4 drive ZFS zpool: stripe over mirrors

In this post, I am creating a 4 drive ZFS pool consisting of two mirror. In this post: I’m booting from mfsBSD 12.1 ZFS Creating partitions On FreeBSD, it is convention to create partitions. It is not necessary, but I don’t use all the space in case a future replacement drive is slightly smaller than …

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Dell R720 flashing Dell PERC H710 mini into IT mode

Dell PowerEdge Servers are common in #homelab use. The hardware gets sold after it goes out of warranty and they get dumped. Most of the disk cards in these servers come flashed for use with RAID and RAID only. Never use a RAID card with ZFS. Always give ZFS direct access to the drives. I …

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PDU setttings

This post documents the PDU settings so I know what is plugged in where and the delay they have on power up. pdu1 – before pdu1 – outlet 1 – r720-01 pdu1 – outlet 2 – knew pdu1 – outlet 3 – slocum pdu1 – outlet 7 – LTO4 tape library pdu1 – after pdu2 …

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laptop hits load averages: 407.41 128.53 49.18 during start up

I’m not complaining. It’s just very amazing how much work a laptop does to start up. As soon as I can get a terminal session I start: [dan@air01:~] $ w 18:13 up 3 mins, 11 users, load averages: 164.29 42.91 15.80 USER TTY FROM LOGIN@ IDLE WHAT dan console – 31Dec19 230days – dan s000 …

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tape01

This is a small desktop / short tower case which is connected to a couple of tape libraries. This post replaces a previous post. Partitions [dan@tape01:~] $ gpart show => 40 5860533088 ada0 GPT (2.7T) 40 1024 1 freebsd-boot (512K) 1064 984 – free – (492K) 2048 4194304 2 freebsd-swap (2.0G) 4196352 5856335872 3 freebsd-zfs …

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knew

This post has been replaced by a newer post. 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 …

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