Disks

Preparing a server for sale – Supermicro 846 – 10 x 5TB HDD

After powering off the server about 8 months ago, I took the first steps to selling it. I opened it up and took out 2x NVMe sticks (1TB each, ZFS mirrored, giving a 930G zpool) INTEL fiber NIC (Intel X540-AT2) I’ll be keeping those items. I also took an inventory of the drives still in …

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How much noise will I lose when I power off this server?

This morning I pondered how much will noise reduce when I power off that server? From the comfort of my living room, directly above the rack in the basement, I powered it off. At first, I was disappointed. I could still hear that repetitive whine. After considering powering off one of the other hosts, I …

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Testing two 12TB drives to a Dell R730 on FreeBSD

I’m ready to downsize. I’m going to replace knew with r730-03. The former has 20 5TB drives. I don’t need all that space now. I’ll settle for 12TB instead. The two new drives arrived today: [23:39 r730-03 dvl ~] % grep da2 /var/run/dmesg.boot da2 at mrsas0 bus 1 scbus1 target 2 lun 0 da2: Fixed …

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stressdisk

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 …

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I bought a new nvme drive – or did I?

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 …

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