Questions tagged [hard-drive]

Questions about hard disks' performance, issues, tips, and software.

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Are two different hard drives the exact same size if they claim to have the same one (i.e. 1TB)?

The concrete problem: I want to create a exact copy of a 4TB logical volume. (By exact I mean the RAID controller will create a copy.) Can I do this by simply using any old 4TB drive? The more ...
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Newly Created VirtualBox VDI ext4 Occupying 24GB Actual Space?

I created a new dynamic vdi disk. Then, from within the guest, I used fdisk to mkfs.ext4. I then shut down the guest and saw this in my vbox: The only thing I saved to the disk so far (Before ...
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Alternative Proliant DL180 Gen10 Drive Caddy Tray - Can I use Gen9 trays?

Does anyone have experience using Proliant DL180 gen9 drive trays in a gen10 server? Tray I'm looking to possibly purchase: https://www.newegg.com/p/1B0-00T6-00001?Description=hp%20drive%203.5%20tray&...
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Determining a hard disks failure based on S.M.A.R.T when its assesment shows as passed

I've been taking a look at some failed hard drives and confused over SMART and how it concludes its assessments as 'PASSED' for drives which get identified as failed by datacenter technicians. I've ...
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My very first SSD - slow, resource hog? [migrated]

I just bought my very first internal SSD and installed it into my desktop PC. I was running out of disk space and want to use it for data storage. The OS is installed on the first disk, which is a ...
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30 views

SSD I/O slows down system

My HDD was getting full, so I added a new SSD and tried moving files to it. For some reason, this bogs down the whole system to the point where it's not usable. This never happened with HDDs when ...
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19 views

Writing to SSD slows down system

I've connected an additional SSD into a Windows 7 Home Premium 64-bit desktop PC and tried moving files to it (mostly large files > 10 GB each). This slows down the system to a point where it's not ...
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Google Cloud Instance Crashed - Same Attached Disk Crashes another instance when attached as secondary (unmounted)

I have a GCP instance that is micro, and I suspect it ran out of memory, It crashed and does not let me SSH into it, even through the web console on GCP. I create a new bootable instance and enter it ...
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DOD Short Wiping Hard Drives: Servers VS Workstations and Desktops

Good morning everyone. I have several Dell Precision T3500 Workstations that can wipe between 5-8 Hard Drives at a time and a few Isilon Systems NL400's (Servers) that can wipe up to 36 Hard Drives. ...
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Does IDs from `ls -l /dev/disk/by-id` output are unique to a disk? - DELL PERC card

Does output from ls -l /dev/disk/by-id can be used as a universal disk identifier? I am currently trying to find a unique identifier that I can use to create a ZFS raidz pool using a unique identifier ...
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138 views

The causes for frozen server

We built one windows 2012R2 server (it has enough free memory/disk space, high performance of CPU), but it would be frozen for around half hour every 12 hours. The symptoms: couldn't access the ...
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SATA disks behind SAS expander in 2020

We all know that SATA disks behind as SAS expander was not a good idea ~10 years ago. However, I read from multiple but non-authoritative sources that many second round SAS2 expanders (ie: with ...
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113 views

How to generate file size statistics in Windows 7?

Say I have a PC connected to some experimental instrumentation. C: is the system partition with Windows 7 and all the programs on it, and D: is the storage partition where all the acquired data is ...
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58 views

NGINX directio is not working (O_DIRECT flag in open(2) sys call )

Nginx configuration is location /conent/ { directio 200k; directio_alignment 4k; } Using SSD with ext4 file system with 4k block size, and journaling has been disabled, linux kernal version is 5.4., ...
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30 views

Determine maximum hard drive I can use in my computer (Ubuntu Server) [closed]

Is there a command I can run to see the maximum disk I can connect to my computer? I have an old (5 years) computer I use as a server. So far it has two small hard drives and an external 3tb drive ...

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