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Questions tagged [hdd]

28 questions
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Using two SSDs for Hot-Warm-Cold Caching a HDD on Linux

I currently have a debian-based Linux system that I'd like to optimize heavily. This machine has three different drives: An SLC SSD, a QLC SSD, and a 4TB HDD. I wanted to know if it was possible to create a multi-tier caching solution that leverages…
Swivel
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Max Hard Drive Size for SATA 2

Recently acquired a 1U Supermicro E3-1230 with two 3.5" drive bays, and thinking of buying two 18TB SATA-3 hard drives for it. Before I make this investment, would anyone know if SATA-2 (3 Gbps) would support 18TB drives with their full 18TB…
Crash Override
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Hard drive temperature in HP ProLiant DL380 G7

Which temperature sensor shows the temperature of the hard drives in the HP ProLiant DL380 G7 server using ILO 3? (the "Temperature" tab shows 30 temperature sensors, but which one is responsible for the token disk?). Is there a transcript of the…
Dmitriy
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What linux distro support Host Managed HDD by file system?

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…
Vlad
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Legacy SAS HDDs with no access to erase the data on them

I need to erase then recycle a bunch of SAS HDDs. They are from servers (I removed from a local ISP for a client) that require 20 amp power, which my house doesn't have, so I can't just erase them in the server using a bootable CD... I have tried a…
tomahawk
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`fio` does not timeout even specified?

# fio --name=random-write --directory=/mnt/test/ --ioengine=posixaio --rw=randwrite -bs=4k --numjobs=1 --size=4g -iodepth=1 -runtime=600 --time_based --end_fsync=1 random-write: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T)…
HCSF
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Can I rebuild a failed raid 1 hdd with the same hdd that failed before?

everyone. I've made a mistake by detach one of the raid 1 hdd. And now it's a raid failure. Can I rebuild the raid with this hdd again? I've clean all the hdd trough diskpart on another pc. When i put back the hdd to the raid slot, it not syncing.…
y_nugroho
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Discover EXT4 (or other) Linux file system (e.g. bootable?)

I want to be able to identify whether some older SATA HDD's have Linux partitions. With the advent (and my fairly recent discovery) of Windows Subsystem for Linux (WSL) on Windows, I realize options have been improved, but i'm not sure it helps with…
J S
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Adding Drive(s) to WSE 2016 Storage Pool - Fails

first time posting. Straight to it then, existing WSE 2016 Storage Pool comprising (all SATA): 3 x 1TB HDD (Samsung SpinPoint F3) 2 x 2TB HDD (Toshiba P300) 1 x 3TB HDD (Toshiba P300) I want to add another 3 x 2TB HDDs, then remove the 3 x 1TB…
Bunter
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Object Storage vs HDD Block Storage

Currently I am using SSD Block Storage at Digital Ocean which is very costly. When I checked Vultr they are providing HDD Block Storage. Which is cheap. We have to store approx 700GB of data (Mostly images) and serve them on websites. Should we use…
Future King
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Raid 5 with hot spare (17+1) somehow became Raid 5 without hot spare (18 + 0)? (Dell Poweredge T640)

So recently we have been having strange RAID storage server issues. The most recent issue I have no idea what could be going on. config is Raid 5; 17 + 1 (17 disk volume + 1 dedicated hot spare) A disk flagged itself as 'removed'. As we're on an…
gavinpeters86
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SM Indicate HDD LED

Sample Hello, sorry for my english. not my native. I cant resolve why blinking indicates. Right now i dont have IPMI access Right now i have access to OS (Ubuntu 20.04) I finded this and associate RED Blinking at 1 Hz Rebuild Drive for SAS/SATA…
Kirill Archakov
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SATA errors showing up in Journalctl while SMART Diagnostic ok - Motherboard issue?

After noticing abnormally long disk operations delays, I looked up journalctl and this is what I found: Feb 22 14:02:11.711182 Onan01 kernel: ata10: hard resetting link Feb 22 14:02:12.186958 Onan01 kernel: ata10: SATA link up 1.5 Gbps (SStatus 113…
fi11222
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Should Hard drives always set the rotatinonal flag in /sys/block//queue/rotational?

Folks, AWS exposes HDDs in their D3 instances (https://aws.amazon.com/ec2/instance-types/d3/) as nvme drives and these drives DON'T set the rotational flag as they're supposed to (https://lwn.net/Articles/408428/). I have cut a ticket to AWS, but…
Subu Sankara Subramanian
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only flush the write cache if there's no read activity

Normally the Linux Kernel flushes the write cache if a specified time limit is exeeded or the cache is full. This leads to stalling with HDDs since the writing process makes reading processes much slower. That's why I want to avoid a flush of the…
france1
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