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Questions tagged [hard-drive]

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

Questions about hard disks performance, issues, tips, and related software, e.g. data recovery or disk test software.

2448 questions
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Why would a heavily disk intensive application run faster on a SAN than on a Physical Disk?

Why would a heavily disk intensive application run faster on a SAN than on a Physical Disk? I would have expected the Physical disk to be slightly faster but in fact the process ran 100 times faster when it's work drive was set to a partition on the…
Stuart Woodward
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Postgres DISK IO very high. What can I do to reduce it immediately?

I'm aware faster disks than what I'm using will help but this will take longer to put in and I am trying to use some emergency measures to decrease disk IO. atop is reporting DSK usage on the red almost constantly. This is for postgres 8.3. My…
Harel
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Economical way to get many harddrives into rack mount?

Please bear with me as being a bit of a newcomer at 19" rack-mounted equipment. I've thought a fair bit lately about the best way of getting 4x or 6x of 2.5" hard drives into my rack and are currently really confused about would be the best (read…
Industrial
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Server vendor that allows 3rd party disks

As noted here, Dell is no longer allowing 3rd party disks to be used with their latest servers. As in, they don't work period. Which means that if you buy one of these boxes and want to upgrade the storage later, you have buy disks from Dell at…
Alvin S
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Mount network drive as physical drive

Is there a way to mount a network location so that it appears as a local physical disk? e.g. \\computer\share as D: (not a network drive)
jwee
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How to unlock an SSD disk with hdparm?

I have an SSD disk with password protection, but the password was lost long time ago... so I tried to erase the ATA security with the hdparm command. With "hdparm -I", the disk information looks interesting as below: root@ubuntu:~# hdparm -I…
user3016997
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Why does unpartitioned Hitachi HDS5C3020 drive start consuming 50% more power 15 minutes after boot?

In a Debian 6.0.6 system there are 74 pieces of 2TB Toshiba DT01ABA200 drives. These drives are identified as Hitachi HDS5C3020BLE630 drives running firmware revision MZ4OAAB0. 64 Drives attached via HP SAS expander cards to an LSI 2008 SAS…
Pro Backup
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Should you still spread a hard drive order over several vendors?

Once upon a time, I was taught to spread an order among at least two retailers whenever I needed around six or more hard drives, and three when the order gets up around 20 drives or more. Use the same make and model of disk, but source them from…
Joel Coel
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Linux disk IO load breakdown, by filesystem path and/or process?

Does anyone have experience with a tool that can provide an indication of disk IO load by filesystem path. I use to 'iostat' utility, frequently, to learn how much disk activity is taking place on a Linux host. 'iostat' provides a per-device…
Ryan B. Lynch
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Make a hard disk sleep and only wake up when needed

I want to connect another hard disk to my computer, which I want to sleep 99% of the time. I will only use it for a few things, but I need it to be mounted at all times. To achieve this I would like to know: How do I log which processes accesses a…
Deleted
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"No space left on device" error despite having plenty of space, on btrfs

Almost everywhere I'm getting failures in logs complaining about No space left on device Gitlab logs: ==> /var/log/gitlab/nginx/current <== 2016-11-29_20:26:51.61394 2016/11/29 20:26:51 [emerg] 4871#0: open() "/var/opt/gitlab/nginx/nginx.pid" failed…
Austin
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How many SMART sector reallocations indicate problems?

I have a NAS appliance that is just over a month old. It is configured to email me alerts generated from the hard drives' SMART data. After one day, one of the hard drives reported that a sector had gone bad and been reallocated. Over the first…
Jeremy
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Replacing Hard Drives

I was wondering if it is a good idea to replace a hard drive in a (fairly) system-critical database server after a certain number of years of use, before it dies. For example, I was thinking of replacing a hard drive after 3 years of use. Since I…
Garfonzo
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Zeroing SSD drives

We host VPSes for customers. Each customer VPS is given an LVM LV on a standard spindle hard disk. If the customer were to leave, we zero out this LV ensuring that their data does not leak over to another customers. We are thinking of going with…
jtnire
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Is it possible to mount/unmount a physical hard drive in Windows XP?

Is it possible to mount/unmount a physical hard drive in Windows XP? Ideally, I'd like to be able to do this from the command line so that I could have batch files to do it, ie: mount.cmd unmount.cmd Also, if the drives can be unmounted, will they…
tbone
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