I have received two HDDs (for a NAS) in a loosely package and not really sure if it is safe to keep them. My concern is that they might have been damaged during transportation. Although it doesn’t seem particularly dangerous to me all major manufacturers say it is inproper packaging. Do you think there’s a … Read more
Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for Server Fault. Closed 7 months ago. Improve this question Which one has a better performance for database application (e.g. postgres) if we just consider read/write operations speed and not fault tolerance 8 … Read more
Im searching for a way to get the most out of “spare” HDDs. Following setup given: 1x 2 TB 2x 3TB 2x 6TB What i want/need is: Parity (1x HDD can fail. For example, one of the 6TB. Data should still be accessable) Most storage possible, without “dead space” Attach new HDDs (any size) to … Read more
I’m a fulltime Linux-Admin and want to get more into becoming more familar with zfs. For my homelab-setup I always followed the following strategy for storage: Generic Linux-box, ubuntu LTS or something with a pair of ssds as boot-device (raid1, mdadm, lvm, luks) a few pairs of disks of the same size (e.G. 2x2TB, 2x3TB, … Read more
Basically, I have two WD HDDs in a programmatic RAID1 (no special hardware): $ lsscsi –verbose [0:0:0:0] disk ATA WDC WD10EFRX-68F 0A82 /dev/sda dir: /sys/bus/scsi/devices/0:0:0:0 [/sys/devices/pci0000:00/0000:00:17.0/ata1/host0/target0:0:0/0:0:0:0] [1:0:0:0] disk ATA WDC WD10EFRX-68F 0A82 /dev/sdb dir: /sys/bus/scsi/devices/1:0:0:0 [/sys/devices/pci0000:00/0000:00:17.0/ata2/host1/target1:0:0/1:0:0:0] one of those (/dev/sdb) started to produce perculiar noise. I’ve run the SMART overall-health self-assessment test with the result: … Read more
I’m researching best media for long-term offline storage. I’ve decided a couple mirrored, different brands, spinning HDDs being powered every 6mo is the best spot for amount of data x reliability x convenience. (This is just for context, don’t want to debate this) One factor I cannot account for is the mechanical differences between 2.5 … Read more
According to this Seagate presentation there are some ongoing (?) efforts targeted toward modification of ext4 file system introducing SMRFS -EXT4 – support of host managed hard drives. The goal is to provide layer that will hide specifics of ZAC commands from applications (I believe). There is also this document that claims that “As of … Read more
We got 8 HDDs in our server (Dell PowerEdge R730), combined as a RAID6 array. Yesterday evening one of the drives failed, so we are looking now for a replacement. I’ve found the Seagate Exos E 10E2400 which got a 256 MB Cache and a 16 GB SSD Cache. Currently, installed are HGST Ultrastar C10K1200 … Read more
I’m wondering how I can go about adding a new disk to my server? I’m unsure how to do this. I’ve tried installing ‘gparted’ with this command $sudo apt install gparted But when I try to run it, it just spits out this message: $sudo gparted Unit boot.mount does not exist, proceeding anyway. Unit tmp.mount … Read more
I have a ZFS running on an Ubuntu 20.04 server that currently is running in degraded state due to a faulted disk. The output of zpool status looks as follows: me@server:~$ zpool status tank pool: tank state: DEGRADED status: One or more devices could not be used because the label is missing or invalid. Sufficient … Read more
